David comes into the emergency room late at night with a cut that will not stop bleeding. His mother, Rose, is worried that he has a bleeding disorder, just like his grandfather. The lab is closed, so the doctor cannot order a specialized coagulation test. However, the hospital does have a sample of blood from a classic hemophiliac. What is the simplest test the doctor could perform using David's blood to determine if it is missing factor VIII activity

Answers

Answer 1

Answer:

The doctor can mix a blood sample from the hemophiliac patient with David's blood.

Explanation:

This test is called Mixture Test and is performed quickly when there is no time to do more detailed and accurate tests. In the mixture text, two blood samples are mixed, where one is from a patient with hemophilia. when mixing the two samples, the doctor observes whether there were coagulation inhibitors in the patient's blood, and can then draw conclusions about the presence of hemophilia in the patient.


Related Questions

In which division phase is the nucleolus formed and spindle fibers broken down?
A) anaphase
B) prophase
C) metaphase
D)telophase

Answers

Answer:

Prophase

Explanation:

During prophase, the nuclear envelope and nucleolus are dissolved and the chromosomes condense. The centrioles and spindle fibers begin to form at opposite poles of the cell.

Answer:

telophase

Explanation:

Spindle fibers disperse as the chromosomes are separated and become housed within two new nuclei.

would it be better to mine in a wilderness area than a developed area?

Answers

Answer:

Yes.

Explanation:

Mining in a area of wilderness can provide great succes as long as you know the area well and know some things about where to mine and not.

Answer: Yes, it is better to mine in a wilderness area than a developed area.

Explanation: Mining is carried out to gather raw materials that serve as the foundation for any country's or region's growth. It is more likely to occur in a wilderness area than in a developed area because mining usually has a negative impact on the environment.

The ores recovered by mining, such as oil, coal, metals, and others, cannot be obtained from any developed location, and the mining process destroys settlements in developed areas.

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The scientific measure of disorder is called _____.
Need help please

Answers

Answer:

Entropy

Explanation:

Answer:

The answer is entropy, hope this helps!

According to the National Academy of Medicine, how much protein does the average American need daily?
Your answer:
o 10-15 grams
o 46-56 grams
o 20-30 grams
Clear answer

Answers

46-56 grams
Explanation: An average woman needs about 46 grams of protein per day; the average man about 56. Research shows that most Americans already get more than enough protein.

hope that helps if you have any questions let me know and if you could mark this as brainliest i would really appreciate it!

3.) How do you know when the first day of the menstrual cycle is? What happens?
4.) What is the function of FSH?

Answers

Answer:

3.) How do you know when the first day of the menstrual cycle is? What happens?

A.) first day of menstrual bleeding is considered Day 1 of the cycle.

4.) What is the function of FSH?

A.) FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries.

-TheUnknownScientist

Answer: 3. Day 1 of your cycle is the first day of your period, meaning the first day of full flow (spotting doesn't count). During this time, the uterus sheds its lining from the previous cycle. Between days 1 – 5 of your cycle, new follicles (sacs of fluid containing eggs) begin to develop within your ovaries. 4. FSH plays an important role in sexual development and functioning. In women, FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries. FSH levels in women change throughout the menstrual cycle, with the highest levels happening just before an egg is released by the ovary.

Explanation:

Based on the figure above, _________ATP molecules are formed by fermentation.

a. 2 c. 36

b. 8 d. 38

Answers

Answer:

Hey!

The answer is:-

2 ATP molecules.

Limestone formation in caves is considered what kind of weathering? A.mechanic B.chemical C.biological D.hydraulic

Answers

Chemical I think pretty sure

Case 2: In Ghana, cowpea is a legume plant that is a significant source of nutrition for people in this country. Attempts are being made to improve the yield and hardiness of this plant through a national crop improvement program. What has complicated this effort is the existence of several different collections of cowpea seeds. (Oppong-Konadu E, Akromah I, and Adu-Dapaah O. 2005. African Crop Science Journal 13:117-123) 1. How would you use protein analysis via SDS-polyacrylamide gel electrophoresis to sort through these collections so that duplicates could be eliminated and the remaining specimens could be sorted into subgroups that could then be further studied for properties of value in crop improvement

Answers

Answer:

It is expected that accessions/lines that exhibit the same bands in SDS-PAGE are phylogenetically similar (or even identical, duplicated, accessions) and therefore they can be removed when developing a core collection of germplasm. Subsequently, the accessions of the core collection can be clustered into subgroups (subpopulations) based on the distances observed between lines, reflected by different protein band patterns observed in SDS-PAGE. It is expected that these subpopulations adequately contain the genetic diversity of the core collection (useful in breeding programs).

Explanation:

SDS-PAGE (sodium dodecyl sulphate–polyacrylamide gel electrophoresis), is a technique widely used in molecular biology to separate proteins based on their molecular weights. In crop improvement programs, this information can result useful to identify accession lines and develop core collections. A core collection is a limited set of lines or accessions/varieties obtained from a large germplasm collection that is expected to contain the genetic diversity of crop species. In this case, cowpea lines that exhibit the same bands in SDS - PAGE are expected to be phylogenetically similar (or even identical/duplicated accessions), thereby these lines can be removed in order to conserve one accession in the core collection. Subsequently, the remaining lines can be classified by a phenogram based on distance measures clustered by UPGMA (unweighted pair group method with arithmetic mean). This cluster analysis enables the construction of a phylogenetic tree from a distance matrix based on protein patterns in SDS-PAGE, thereby obtaining subpopulations (clusters) which will be useful in breeding programs.

Explain why conflict avoidance does not help in sustaining positive relationship​

Answers

Answer:

Avoidance is not healthy for sustaining the positive relationships as the ignorance or avoidance can cause the damage between the relationships of the people. The maintenance of the relationship among people can be hampered by avoidance. It can make the other people feel neglected. That can cause a failed relationship.

Explanation:

Is it a animal or plant and y

Answers

Answer:

plants

Explanation:

plants have box like shape because they have cell wall

As the crocodile stays underwater, its hemoglobin delivers most of the bound As the crocodile stays underwater, its hemoglobin delivers most of the bound blank as a result of blank binding of blank to the blank conformation. as a result of As the crocodile stays underwater, its hemoglobin delivers most of the bound blank as a result of blank binding of blank to the blank conformation. binding of As the crocodile stays underwater, its hemoglobin delivers most of the bound blank as a result of blank binding of blank to the blank conformation. to the As the crocodile stays underwater, its hemoglobin delivers most of the bound blank as a result of blank binding of blank to the blank conformation. conformation.

Answers

Answer:

As the crocodiles stay underwater, its hemoglobin delivers most of the bound O2 as a result of an increased binding of HCO3 to the T conformation.

Explanation:

Crocodiles are the creatures on earth who live on land as well as in water. There are form of reptiles who belong to Phylum Chordata. They eat other animals and hunt their prey mostly hiding themselves in water. They have giant tooth which grabs their prey and kills them instantly.

PLEASE ANSWER ASAP
Which of the following statements accurately describe a chromosome? Select all that apply.

a. Chromosomes contain one long DNA molecule that is tightly wound

b. Every chromosome has many genes as each gene is one segment of DNA

c. Every chromosome has one gene as an entire DNA makes up a gene

d. In any given organism, the gene(s) found on one chromosome can also be found on other chromosomes.

Answers

Answer:A

Explanation:

The statements that accurately describe a chromosome are:

a. Chromosomes contain one long DNA molecule that is tightly wound.

b. Every chromosome has many genes as each gene is one segment of DNA.

d. In any given organism, the gene(s) found on one chromosome can also be found on other chromosomes.

What is a chromosome?

A chromosome can be defined as a thread-like linear strand of deoxyribonucleic acid (DNA) that is typically found in the nucleus of each cell.

The characteristics of a chromosome.

In Genetics, some of the characteristics of a chromosome include the following:

Chromosomes is made up of a long deoxyribonucleic acid (DNA) molecule that is tightly wound.Every chromosome consist of many genes as each gene is a single segment of deoxyribonucleic acid (DNA).In any given organism, the gene(s) that is found on a chromosome can also be found on other chromosomes.

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What is this tiny bird doing in this big guy's mouth? The plover bird is
picking the chunks of meat out of the crocodile's teeth. This helps the
crocodile's mouth stay healthy and be ready for its next big meal. What is
type of relationship is being described?

Answers

What are the options ?

Imagine five forest communities, each with 100 individuals distributed among four different tree species (W, X, Y, and Z). Which forest community would have the most relative abundance?
50W, 25X, 15Y, 10Z
70W, 10X, 10Y, 10Z
25W, 25X, 25Y, 25Z
40W, 30X, 20Y, 10Z

Answers

Answer:

the 3rd one would be most relative

Explanation:

The forest community each with 100 individuals distributed among four different tree species (W, X, Y, and Z)  would have the most relative abundant option as correct 25W, 25X, 25Y, 25Z.

Diversity is described because of the unique types/sort of lifestyles paperwork gift at the earth. Diversity plays an amazing position with the aid of using Maintain the stability of nature, law of weather, cleansing of air and water, carbon sequestration and international weather change, organic productivity, vitamins cycling, stabilize earth from erosion, and lots greater function.

Mainly variety relies upon Species richness and species evenness.Species richness is the entire quantity of various species present. Species Evenness is the abundance of every species in a community.

What is species?

Species are frequently described as the biggest organization of organisms wherein any people of the ideal or mating kinds can produce fertile offspring, normally through reproduction. Other approaches to defining species encompass their karyotype, DNA sequence, morphology, behavior, or ecological niche.

Thus it is clear that forest communities would have the most relative abundance are 25W, 25X, 25Y, 25Z.

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Where does pollination take place for an orange tree?
A. Flowers
B. Leaves
C. Roots
D. Trunk

( please help due right now )

Answers

Answer: A.
Insects fly to the flower for pollen and nectar

Answer:

its A :)

Explanation:

i got the answer correct on my work

Why do silent mutations not affect the protein that the gene encodes?

Answers

Answer: Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein. ... And when the amino acids of a protein stay the same, researchers believed, so do its structure and function.

Which of the following are the main parts of the cardiovascular system?

A. thymus, lymph, lymph nodes, spleen, and tonsils

B. esophagus, stomach, small intestine, and large intestine

C. nose, pharynx, larynx, trachea, and lungs

D. heart, arteries, capillaries, and vines

Pls, help! I am currently taking a test with this question on it! I will mark brainliest if u are correct!

Answers

(D)

HEART,ARTERIES,CAPPILARIES,AND VINES

HOPE IT HELPS THANK YOU ☺

cion
Fully explain how speciation occurred on the
Galapagos Islands using 3-4 complete
sentences.
PLEASE HELPP!!

Answers

im not very sure but since they have different small islands, the animals travel to different and change according to the weather living conditions and food there

Please help me name each letter and match it to the definition. (Do not spam on my question either please)

Answers

Answer:

1. B. Medulla oblongata contains cardiac, respiratory, vasomotor and reflex centers.

2. A. Hypothalamus is the major regulator of ANS

3. D. Occipital lobe is the location of visual cortex.

4. F. Sensory areas are primary site responsible for perceiving cutaneous sensory sensations and proprioception.

5. E. Motor areas directs conscious motor movement

6. C. Cerebellum - coordinates movement by comparing intended movement with actual movement.

7. K. Corpus callosum allows communication between right & left cerebral hemispheres.

8. J. Frontal Lobe - Cognition, personality.

9. A. Hypothalamus - Contains hunger, thirst and thermoregulatory centers.

Which of the following is a difference between arteries and viens?
arteries carry blood and veins carry only plasma
arteries do not have valves and veins do have valves
arteries are thin and veins are thick
arteries carry blood back to the heart and veins carry blood to the heart

Answers

The correct option is :

=》arteries do not have valves and veins do have valves.

Arteries don't have valves because back flow of blood isn't possible due to high pressure, but blood in veins doesn't have high pressure just like arteries, so to stop backflow of blood, veins have valves.

The diagram below represents some stages in the life cycle of humans. The numbers in the diagram represent various processes in the cycle.




Identify the process(es) represented by 1 and 2. State how these processes (1 and 2) affect the amount of genetic information provided by a parent to its offspring.

Answers

Answer:

The diagram below represents some stages in the life cycle of humans. The numbers in the diagram represent various processes in the cycle.

1. "The processes reduce the amount of genetic information from each parent by half."

During sexual reproduction, a specialized cell division process called meiosis occurs. Meiosis involves two consecutive divisions, resulting in the production of four haploid cells (gametes) from a diploid cell.

2. "Each parent only contributes half of the genetic information that is contained in his or her own cells."

As mentioned earlier, meiosis results in the formation of haploid gametes. Each gamete contains only one set of chromosomes, which is half the number found in the parent's diploid cells.

During meiosis, homologous chromosomes pair up, and genetic recombination occurs between them, shuffling and exchanging genetic information.

3. "Each egg (or each sperm) will carry only half of the genetic information contained in the parent's body cells."

This statement reiterates that gametes (eggs or sperm) are haploid cells containing only one set of chromosomes. When a cell undergoes meiosis to produce gametes, it divides twice, resulting in four cells with half the genetic information of the parent's body cells.

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no links please on My question or I will report you

Answers

It should be 113!

(45x9/5) +32

Answer:

B, or 113 Fahrenheit

Explanation:

Meiosis is a type of cell division that is specific to

Answers

Meiosis is a type of cell division that is specific to germ cells (gamete cells).

What is Meiosis?

Meiosis may be defined as a type of cell division in which each parental cell is divided into four daughter cells. Each daughter cells are genetically unique to the parental cell and are haploid in nature.

Gamete cells are typically divided by this mechanism of cell division. This is because when toe distinctive gamete cells from male and female are fused together, the resultant zygote will have the entire set of genetic material.

The gamete cells significantly have half the amount of genetic content. Due to this, it is also known as reductional division.

Therefore, meiosis is a type of cell division that is specific to germ cells (gamete cells).

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Why did the accepted scientific theory of the solar system change from a geocentric model with Earth in the center to a heliocentric model with the Sun in the center?

Question 2 options:

A: Because over time the Sun's position changed


B: Because over time the Earth's position changed


C: New evidence and observations changed our understanding of the solar system


D: New planets formed in between the Sun and Earth

Answers

I think it is A and C sorry if I’m wrong

Help please!! | No links!
The trees in a forest were cut down to make room for a housing development. Explain how this impacts the environment.

Answers

Answer:

69

Explanation:

60+9=69

The loss of trees can cause climate change, desertification, soil erosion, fewer crops, flooding,

which of the following is an example of an ecosystem with a high amount of diodiversity

Answers

Answer:

Example of ecosystem with high biodiversity is tropical rain forest as seen in Amazon basin of south America. Such forests are also thriving in parts of central Africa and also in islands of Indonesia. In marine environment, coral reefs are example of high biodiversity aquatic ecosystems

Explanation:

How did the angle of insolation affect temperature? What can you conclude about the effects of the position of the sun?

Answers

Answer:

The angle of incoming solar radiation influences seasonal temperatures of locations at different latitudes. ... At higher latitudes, the angle of solar radiation is smaller, causing energy to be spread over a larger area of the surface and cooler temperatures.

Explanation:

Identify all statements that accurately describe the structure of the pyruvate dehydrogenase (PDH) complex. E2 contains three domains. The complex contains multiple copies of each of three enzymes. A regulatory kinase and phosphatase are part of the mammalian PDH complex. The core of the complex is made up of several copies of E1 . Several copies each of E1 and E3 surround E2 .

Answers

Answer: The statements that correctly describe the structure of pyruvate dehydrogenase (PDH) complex are:

--> E2 contains three domains.

--> A regulatory kinase and phosphatase are part of the mammalian PDH complex.

--> Several copies each of E1 and E3 surround E2 .

Explanation:

Enzymes are proteins that speeds up a metabolic reaction by lowering the amount of energy needed to start the reaction. The type of enzyme in a cell will determine the metabolic processes that will occur in it.

Pyruvate dehydrogenase complex which is located at the mitochondria matrix, is a group of enzyme that catalyzes the breakdown of pyruvate, which is the end product of glycolysis, to form acetyl-CoA. The product formed from the reaction which is acetyl-CoA in turn enters the citric acid cycle where it is further oxidized for cellular respiration.

The structure of Pyruvate dehydrogenase complex consists of:

--> Three catalytic enzymes: These include;

• E1: This is the first enzyme of the PDH complex called pyruvate dehydrogenase. It catalyzes the removal of one carbon atom from pyruvate which leads to the production of hydrohyethyl.

• E2: This is the second enzyme of PDH complex called dihydrolipoamide S-acetyltransferase. It catalyzes the transfer of hydroxyethyl group to oxidized form of covalently bound lipoamide, and the resulting acetyl group is then transferred to free coenzyme A to form ACETYL-CoA and reduced dihydrolipoamide. Several copies each of E1 and E3 surround E2 and it consist of three DOMAINS. These domains include: N-terminal 9 kDa lipoyl domain, 4 kDa peripheral subunit-binding domain and C-terminal 28 kDa catalytic (acetyltransferase) domain.

• E3: This is the third and last enzyme of PDH complex called the flavoprotein dihydrolipoamide dehydrogenase. It re-oxidizes the lipoyl group of dihydrolipoamide-E2 to form lipoamide-E2 and NADH.

--> Two regulatory enzymes: The activities of E1 which is the rate limiting step of PDH complex regulated by phosphatases (activators) and kinases (inhibitors).

--> A binding protein: these aids in the binding of E2 to E3 enzyme in the core of PDH complex.

What does RNA code for?
A. carbohydrates
B. DNA
C. proteins
D. fats

Answers

Answer:

DNA

Explanation:

because carries the genetic information copied from DNA in the form of a series of three-base code

I hope this helped you:)

Answer:

dna dont mean to copy but person in top of me is correcto

Explanation:

Storage polysaccharides, like starch and glycogen, often contain over a million glucose units. The energetic cost of synthesizing polysaccharides is high (about one high-energy phosphate bond per sugar residue added). Suppose that in a liver cell, the glucosyl residues in large numbers of glycogen molecules were replaced with an equivalent number of molecules of free glucose. What problems would this cause for the liver cell

Answers

Answer:

Glucose present as monomers within the cell will exert more osmotic pressure than a single glycogen molecule, resulting in endosmosis and the lysing of cells.

Also, the presence of free glucose molecules will result in increase in weight of the liver due to lack of efficient packing as in glycogen as well as the association ofnthe glucose molecules with water molecules.

Explanation:

Glycogen is a polysaccharide composed of glucose monomer units linked to Each other by α-1,4-glycosidic binds. α-1,6-branches arises at about every 10th glucose residue in the straight chain. Thus animals more glucose molecules to be stored within a much smaller space, thereby incresing the bulkiness of glycogen. Glycogen molecules are insoluble in the aqueous medium of the cell because it doesn't have enough free polar groups to participate in hydrogen bonding with water and are stored as granules and therefore do not affect the water potential or osmotic balance of the cell.

On the other hand, glucose molecules are highly soluble in water because it has many free polar -OH grours that form hydrogen bonds with water. If the glucosyl residues in large numbers of glycogen molecules were replaced with an equivalent number of molecules of free glucose, the free glucose will exert a high osmotic pressure inside the cell, causing the entry of water in the cell by endosmosis resulting in swelling and lysis ofnthe cell. Also, the space occupied by these free glucose units within the cell will be much larger than that of glycogen whichmenables efficient packing ofthe glucose molecules.

Other Questions
Suppose that a small town has seven burger shops whose respective shares of the local hamburger market are (as percentages of all hamburgers sold): 23 percent, 22 percent, 18 percent, 12 percent, 11 percent, 8 percent, and 6 percent. Instructions: Enter your answers as a whole number. a. What is the four-firm concentration ratio of the hamburger industry in this town? percent b. What is the Herfindahl index for the hamburger industry in this town? c. If the top three sellers combine to form a single firm, what would happen to the four-firm concentration ratio and to the Herfindahl index? Four-firm concentration ratio = percent Herfindahl index = please help solve h(t) =-16t^2+40t+20 What is a hard cut?1. when the film fades to white between two clips2. when the film fades to black between two clips3. when two clips are edited together with no transition4. when two clips are shown side by side with a divider 1.2675 * 10^37 = help pls its like 3am and for some reason my brain doesn't work :) A test tube is filled with water and a green plant called Elodea. When the plant is exposed to sunlight, it begins to produce bubbles. What is the most likely conclusion for the identity of the gas in the bubbles? Explain. EEGs, or electroencephalograms, are often conducted to diagnose epilepsy. The word electroencephalogram means PART A: What connection does the author draw between Hollywood and the American Dream in this article. What are the four parts of a neuron help me please NOWWW Write a paragraph. Nelson Mandela stated, "When those in power deny you of freedom the only path to freedom is power. Write a paragraph in support of this quote using evidence from the text to support your reasoning. A bucket is held up by a rope.What force is pulling the bucket down?O Force GravityO Force TensionO Force ElasticO Force Normal state four reason why knowing the entry requirement is important Which of the following have been consequences of colonialism in Africa? (4 points)Interethnic conflictThriving democraciesStable economiesEuropean cultural influences Select all the correct locations on the table.Consider the following expression78 . 498Select "equivalent" or "not equivalent" to indicate whether the expression above is equivalent or not equivalent to the values or expressions inthe last column.EquivalentNot Equivalent343EquivalentNot Equivalent4975.49575.49378. 4977.495EquivalentNot Equivalent 75.7Not Equivalent 49.75Equivalent1 Edmentum. All rights reserved. How do funnel clouds form ?A. cold air temperatures B. tropical ocean waters C. warm air that circles around D. a gathering of dark clouds Can you give me proably a little step by step to the answer so I can understand it a bit more? Although they do not function the same way which two verbals may look identical?A. gerunds and infinitivesB. infinitives and participlesC. gerunds and participlesD. infinitives and verbalsPlease select the best answer from the choices provided Select all the correct answers.Which two stances or courses of action has the United States taken regarding Latin America?It has stayed away from imperialistic opportunities in Latin America.It has rejected trade agreements with several Latin American countries.It has refused to send aid to assist Latin American countries.It has supported several military coups.It has supported industries by trading goods with Latin American nations. Which of these provides the best explanation for why the pencil appears broken?A. The pencil absorbs all the light rays that hit itB. Water reflects light rays away from the pencilC. Light rays are bent by the water in the glassD. The surface of the water reflects lights rays Standard deviation refers to the __________. A. statistics used to organize, summarize, and describe sample data B. value within a given set of data in its original form C. average distance between variable scores and the mean in a set of data D. difference between the largest and smallest variable scores in a set of data Please select the best answer from the choices provided A B C D