B)Mendelian genes are at specific loci on the chromosome and,in turn, segregate during meiosis.
2. What can you conclude from your results about the relative effectiveness of antiseptics vs. disinfectants in preventing the growth of E. coli
Answer:
Efficacy o disinfectant is relatively greater than that of antiseptics
Explanation:
Most of the reason has to do with the fact that antiseptics are made in a mild form so as to not harm human tissue, while disinfectants are more concentrated and ought to be applied directly to surfaces in order to sanitize them.
The diagram shows two charged objects, A and B.
Based on the field lines, what are the charges of the
objects?
3
A: positive
B: negative
O A: negative
B: positive
O A negative
B: negative
OA: positive
B: positive
A
B)
AR
NAL
Save and Fit
Answer:
A: positive
B: negative
Explanation:
Hope it helps.
Answer
A is positve and B is negitive
Explanation:
Mendel crossed two plants that were heterozygous for the trait of flower color. Which genotypes could he have used to represent the cross?
PP ´ PP
Pp ´ Pp
pp ´ pp
Pp ´ PP
heterozygous means it is not the same gene expression
so both are
Pp'Pp
the second one
The genotypes that he could have used to represent the cross between two heterozygous individuals is: Pp ´ Pp
WHAT IS HETEROZYGOUS CROSS:Heterozygous cross is a cross between two individuals in which the genotype of both contains different alleles of a gene. According to this question, Mendel crossed two plants that were heterozygous for the trait of flower color. The alleles of flower color are P (purple) and p (white). This means that a heterozygous genotype will be Pp.Therefore, the genotypes that he could have used to represent the cross between two heterozygous individuals is: Pp ´ Pp
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Place in correct order the following steps in the process of appositional growth of cartilage. a: New matrix is produced and secreted. b: Chondrocytes differentiate, each in its own lacuna. c: Stem cells undergo mitosis. d: Committed cells differentiate into chondroblasts.
Answer:
c: stem cells mitosis stem.
d: the compromised cells differentiate into chondroblasts.
a: New matrix is produced and secreted.
b: Chondrocytes differ, each in its own gap.
Explanation:
The appositional growth of cartilage occurs in an appositional order, thus generating these cartilage structures to give future bone structures or mature cartilages themselves.
In the cartilage of growth of long bones this process happens.
Chondroblasts are differentiated cells that can form the extracellular matrix, and chondrocytes would be the mature form of these that are submerged in their MEC once they reach the secretion limit.
The constant cartilage of cellular, mineral and organic structures, with organic compounds predominating (almost 80 percent are collagen fibers, proteoglycans and glycoproteins), that is why this tissue has a certain elasticity.
Transcribe and translate the following strand.
CGTACGGGCAGGATCGGCGAACTGGA
Transcription: 1
(The answer for transcription must be in all caps; example: AAAAAAA)
Translation:
(The answer for translation must be in the following format: first letter capitalized and each amino
acid separated by a hyphen; example: Met-Met-Met-Met)
Second Base of mRNA Codon
С
A
G
UUU Phe
UUC Phe
UUA Leu
UUG Leu
UCU Ser
UCC Ser
UCA Ser
UCG Ser
UAU Tyr UGU Cys
UAC Тут UGC Cys
С
UAA STOPUGA STOPA
UAG STOP UGG Trp
CUU LCI
CUC Leu
CỦA LcU
CƯ Leu
CCU Pro
CCC Pro
CCA Pro
CCG Pro
CAU His
CAC His
CAA Gln
CAG Gln
CGU Ang
CGC Arg
CGA Arg
CGG Arg
First Base of mRNA Codon
Third Base of mRNA Codon
AUU Te
AUC le
AUA Ile
AUG Met
ACU Thr
ACC Thr
ACA Thr
ACG Thr
AAU Asn
AAC Asn
AAA Lys
AAG Lys
AGU Ser
AGC Ser
AGA Arg
AGG Arg
G
GUU Val
GUC Val
GUA Val
GUG Val
GCU Ala
GCC Ala
GCA Ala
GCG Ala
GAU Asp
GAC Asp
GAA Glu
GAG Glu
GGU Gly
GGC Gly
GGA Gly
GGG Gly
Pon-90A
Answer:
AAC Asn
AAA Lys
AAG Lys
AGU Ser
AGC Ser
AGA Arg
AGG Arg
G
GUU Val
GUC Val
GUA Val
GUG Val
GCU Ala
G
Complete the following vocabulary exercise related to DNA replication.Match the words in the left-hand column with the appropriate blank in the sentences in the right-hand column.
1. During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called a_______ .
2. After replication is complete, the new DNAs, called_______ , are identical to each other.
3. The enzyme that can replicate DNA is called_______ .
4. _________are the short sections of DNA that are synthesized on the lagging strand of the replicating DNA.
5. The new DNA strand that grows continuously in the 5' to 3' direction is called the________.
leading strand
okazaki fragments
replication fork
DNA polymerase
daughter DNA
Answer:
1. During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called a replication fork.
2. After replication is complete, the new DNAs, called daughter DNA , are identical to each other.
3. The enzyme that can replicate DNA is called DNA polymerase.
4. Okazaki fragments are the short sections of DNA that are synthesized on the lagging strand of the replicating DNA.
5. The new DNA strand that grows continuously in the 5' to 3' direction is called the leading strand.
Explanation:
Hope it helps.
DNA replication is the process by which a cell makes an exact copy of its DNA.
It is a fundamental process in all living organisms that allows for the accurate transmission of genetic information from one generation to the next. During DNA replication, the double-stranded DNA molecule unwinds and separates into two individual strands.
Each of the original strands serves as a template for the synthesis of new DNA occurs. This replication process follows a semi-conservative mechanism.
The correct options are:
Replication forkDaughter DNADNA polymeraseOkazaki fragmentsLeading strandLearn more about DNA replication, here:
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So far, we have examined a cell that does not undergo crossing over. What is true about such a cell?
b. It will produce a limited variety of gametes with certain alleles being always passed on together.
Crossing over is a process that happens during meiosis, where the 23 chromosomes from the mother mixes with the 23 from the dad, creating an individual with an unique combination of genes. The only chromosome that does not do crossing over is the chromosome Y, because it is too different from his counterpart, the chromosome X.
b. If we were to dig up this plant, what type of root system should we expect to find? Describe what the roots of this plant should look like according to your identification in part a above addressing the presence or absence of the following parts: • Tap root • Lateral root • Fibrous root system • Trichomes
Answer:
Tap root
Explanation:
A large majority of dicotyledonous plants are capable of producing tap roots, which is part of a primary rot system that grows in the vertical direction - downwards. Sometimes it serves the function of storing food, as in the case of dandelions.
One main role that the trichomes (fine hair-like outgrowth) play is to defend the plant against certain insects.
A phosphodiester bond is used to: A. join two glucose molecules. B. join two nucleotides into a polynucleotide. C. join glycerol to fatty acids. D. join two amino acids into a polypeptide.
To join two nucleotide in a polynucleotide, phosphodiester bond is used. The correct option is B.
What is phosphodiester bond?A bond formed by a sugar group and a phosphate group; these bonds make up the sugar-phosphate-sugar backbone of DNA and RNA.
A diester bond connects two different nucleotides to form the nucleotide polymers DNA and RNA.
Thus, the correct option is B.
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the meaning of photosynthesis
Answer: the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct
Explanation:
Answer:
it is when a green plant or another plant use sunlight to synthesize food from water and carbon dioxide
:
Adaptive immunity comprises two branches: humoral immunity and cellular immunity. What are the characteristics of each of the two arms of the adaptive defense system
Answer:
Adaptive or acquired immunity is that we acquire throughout our lives through vaccines (active), breast milk (passive) or injection of specific artificial or natural antibodies to a certain pathogen (passive).
The two great arms of this immunity are the humoral and the cellular.
The humoral refers to the cytokines and immunomodulatory molecules that are responsible for transmitting fundamental messages between defense cells in order to coordinate the destruction of the pathogen between them.
Instead, cellular immunity speaks about cell lineage such as b, t, tcd4 lymphocytes, natural killers, plasmacytes, etc.
It can be said that the humoral factor is the one that coordinates the pathways and the relationships between the cells of the acquired immunity, both are important because the two need each other for adaptive immunity to work.
Explanation:
Examples of the humoral factor: pro and anti inflammatory cytokines, interleukins, complement chain, antibodies, TNF alpha, beta, etc.
Examples of cellular factor: plasmacyst, b lymphocyte, t lymphocyte, NT lymphocyte
what is a type of emigration where offspring move
away from their parents.
Answer:Dispersal
Explanation: This refers to offspring moving away from their parents. This prevents the offspring from competing with the parents for resources such as light or water. For example, dandelion seeds have “parachutes.” They allow the wind to carry the seeds far from the parents
Two students performed the same experiment, testing how far iodine will diffuse through starchy tissue, such as potatoes. They cut 5 potato squares each, all of equal sizes, and placed them into small cups with iodine solution for 15 minutes. Then they measured how far from the edge of the potato the iodine diffused into the potatoes, in millimeters
Distance Diffused (mm)
Trial 1 Trial 2 Trial 3 Trial 4 Trial 5
Student 1 3.25 3.17 3.26 3.64 3.44
Student 2 3.14 3.43 3.22 3.37 3.28
What is the range of student 1's results?
A. 3.35
B. 0.29
C.0.47
D. 3.29
Answer:
0.19
Explanation:
3.44-3.25 = 0.19
Is B supposted to be 0.29 or 0.19?
The the range of student 1's results is 0.47. The correct option is C.
What is testing?An experiment is a test in which a system's component is changed to examine how the result is affected.
In order to determine the exact source of the experimental outcomes, tests should ideally involve manipulating as many additional variables as possible.
The process of scientific testing is determining what we would expect to see if a theory were true and contrasting it with what we actually see.
Through testing and experimentation, the scientific method establishes facts in an unbiased manner.
Making an observation, formulating a hypothesis, making a prediction, carrying out an experiment, and then evaluating the findings are the fundamental steps.
The range of student 1’s result is equal to = 3.64 - 3.17 = = 0.47
Thus, the correct option is C.
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Approximately how much methane does one cow produce per year? How does the greenhouse gas warming effect of methane compare to carbon dioxide? Describe the organisms that digest and ferment the hay inside of the cow’s stomach? How are scientists reducing the amount of methane released from cows?
Answer:
Cattle and other ruminants are significant producers of the greenhouse gas methane—contributing 37 percent of the methane emissions resulting from human activity. A single cow on average produces between 70 and 120 kg of methane per year and, worldwide, there are about 1.5 billion cattle.
While carbon dioxide is typically painted as the bad boy of greenhouse gases, methane is roughly 30 times more potent as a heat-trapping gas. ... As temperatures rise, the relative increase of methane emissions will outpace that of carbon dioxide from these sources, the researchers report.
The cow's rumen is like a large fermentation vat. More than 200 different bacteria and 20 types of protozoa help the cow to utilize fibrous feedstuffs and non-protein nitrogen sources. ... Bacteria adhere to the feed and gradually digest the fermentable material.
“You can probably reduce methane by about 20-25% by altering diet,” he says. One study by researchers at the University of California, Davis, estimated it might be possible to reduce global methane emissions from cows by 15% by changing their diet.
Explanation:
Hope it helps.
At birth,the skin is covered by
Answer:
Vernix Caseosa
Explanation:
it's a waxy white substance that covers the babies skin.
Answer:
The skin is covered by VERNIX CASEOSA.
Explanation:
A waxy cheese like white substance.
This is produced by dedicated cells and have some protective roles during fetal development.
You are the microbiologist in charge of reading the Gram stain for this case. You observe Gram positive cocci, epithelial cells, and neutrophils. List at least two genera of clinically significant bacteria that are consistent with your observations.
Answer:
The genera include...
Mycobacterium
Actinomyces.
Explanation:
The genera Actinomyces and mycobacterium show significant observation of gram positive bacteria because they test positive and give a violet or purple color under microscope when the undergo gram staining which is which uses crystal violet due. They are able to retain the violet color due to their posses of thick peptidoglylcan cell wall.
Actinomyces spp. Of the general actinomyces play an important role in soil ecology, and some species are human pathogens that cause diseases.
Mycobacterium genera example is bacilli which is covered with a mycolic acid coat. This waxy coat protects the bacteria from antibiotics, prevents them from destruction and hinder the penetration by Gram stain reagents. They cause different infectious diseases in humans.
Respond to the following based on your reading
1. are chemical messengers secreted by glands.
2. Exocrine glands, such as sweat glands, secrete fluids through ducts.
glands secrete hormones directly into the bloodstream
3. The gland plays an important role in puberty and growth
4 Epinephrine, triggering the "fight or flight response, is produced by the
glands, which sit on top of the kidneys.
5. Most glands that secrete hormones operate using feedback mechanisms.
When hormone concentrations are high, the gland will produce
of
the hormone
6. Many cells produce chemicals called hormone-Eke substances that
impact inflammation and reproduction
7. The gland that helps regulate growth, body temperature, and the level of
calcium in the blood is called the
8. Describe the function and compare steroidal and nonsteroidal hormones. How
does each type of hormone interact with the cell? What other molecules are
required for or involved in their function?
Answer:
1. hormones
2. endocrine glands
3. pituitary
4. adrenal glands
5. fewer amounts of the hormone
6. parathyroid hormone-like hormone (PTHLH)
7. the thyroid and parathyroid glands
8. Steroid hormones are produced from cholesterol, while nonsteroid hormones are produced from amino acids.
Explanation:
Hormones are signaling molecules secreted by the body to control cellular activities The endocrine glands are glands that don't have ducts to carry their secreted products (hormones) to the surface. Endocrine glands include the hypothalamus, ovaries, testes, pancreas, adrenal glands, parathyroid glands, pituitary gland, pineal gland, thymus and thyroid glands. The pituitary gland is an endocrine gland that secretes many hormones into the bloodstream, which are capable of controlling the functioning of other organs and glands. During the puberty stage, this gland secretes LH and FSH gonadotropin hormones that affect male and female gonads in order to activate the production of sex hormones. The adrenal glands secrete cortisol, which is known as the stress hormone. These glands also produce adrenaline which regulates visceral functions such as, for example, respiration. The parathyroid hormone-like hormone (PTHLH) is generated by epithelial cells and plays important roles in fetal and adult tissues, (i.e., cell proliferation, differentiation and morphogenesis). The thyroid gland regulates body temperature, while parathyroid glands control the calcium level in the blood by secreting the parathyroid hormone (PTH). Steroid hormones are lipidic hormones known to bind steroid receptors and they can easily cross the cell membrane, while non-steroid hormones cannot diffuse across the cell membranes and they are secreted by the endocrine system.
Art-Labeling Activity: Components of blood.
Explanation:
Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets.
A scientist is observing cells undergoing division and identifies a cell that contains 15 pairs of homologous chromosomes. However, a new technique allows the scientist to determine that several of the chromosomes have exchanged pieces of genetic material with their homolog. The scientist now knows that which of the following is true?
A. The cell is in mitosis and has just completed crossing over
B. The cell is in meiosis II and is ready to complete the second division over
C. The cell is in meiosis and has just undergone crossing
D. The cell is in late anaphase of mitosis
Answer:
B. The cell is in meiosis II and is ready to complete the second division over.
Explanation:
Hope it helps.
Label parts A and B in this picture of saprophytes (fungi)
Answer: A- Sporangium
B- Rhizoids
Explanation:
Which of the following tissues would NOT be found in fibrovascular bundles?
Answer:
Phloem cells are hollow and nonliving, and they form a continuous pipeline that transports sugars.
hope this answer is correct ...
Which of the following areas indicates the occipital lobe on the diagram below? Region A is the anterior (front) section. Region B is the medial (middle) superior (up) section. Region C is the posterior (back) section. Region D is the medial (middle) inferior (down) section. Region D Region B Region C Region A
Answer:
Region C is the posterior (back) section.
Explanation:
The occipital lobe is found at the back of the head.
Hope it helps.
Answer:
C the green highlighted part
Explanation:
Took the test
What would cause antibodies to attack the cells of the body?
Answer:
In autoimmune diseases, such as lupus, multiple sclerosis and rheumatoid arthritis, people produce antibodies that stick to their body's own proteins and attack healthy cells.
Explanation:
Does this category
include producers?
Does this category
include consumers?
Archaea, bacteria, protists, viruses
Answer:
This group contains producers and consumers.
Explanation:
You can think of viruses as consumers that eat healthy cells in your body. Bacteria are producers, you can think of it like a lake with algee that grows and gets produced.
ASAP Mitosis and Meiosis have all of the following in common, except: A. Both duplicate their DNA first B. Both result in cell division C. Both have chromosomes line up in the middle of the cell D. Both result in genetically identical daughter cells
Answer:
D
Explanation:
they both produce daughter haploid cells.
Mitosis and Meiosis have all of the following in common, except both results in genetically identical daughter cells. Thus, the correct option is D.
What is Meiosis?Meiosis may be defined as the type of cell division that forms four daughter cells that are haploid in nature from a parental cell. It is also known as reductional division.
The common methods of both types of cell division are both duplicate their DNA first, both result in cell division, and both have chromosomes line up in the middle of the cell.
Mitosis is only the type of cell division that results in the formation of two genetically identical daughter cells.
Therefore, the correct option for this question is D.
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In chickens, a condition referred to as "creeper" exists whereby the bird has very short legs and wings, and appears to be creeping when it walks. If creepers are bred to normal chickens, one-half of the offspring are normal and one-half are creepers. Creepers never breed true. If bred together, they yield two-thirds creepers and one-third normal. Propose an explanation for the inheritance of this condition.
Answer Explanation:
Due to technical difficulties, the answer and explanation for this problem are available in the attached file.
Which rock is an example of an organic sedimentary rock?
O iron ore
O rock salt
O limestone
O sandstone
Answer:
Hello Again!!
Your answer is C. LIMESTONE!
Explanation:
Limestone is formed Calcium Carbonate (CaCO3) and a mixture of othe organic matters like shells, coral and waste...
HOPE THIS HELPS!
itsMATT04
Limestone is an example of an organic sedimentary rock.
What is organic sedimentary rock?These are organic-rich sedimentary rock which contains significant amount of organic carbon.
Limestone chemically is calcium carbonate, which contains organic carbon.Rock salt is an inorganic sedimentary rock.Sand stone is a clastic sedimentary rock which is formed by the compact sand granules.Iron ore is a source of minerals and iron.Hence, here limestone is the only organic sedimentary rock.
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Weight loss is a common goal among many aduls, and losing woight can be very difficult. There are countiess approaches to consider, but an often-overlooked area is the role of an individuals evironment. Environmental factors can be a good place to start for people looking to Iose weight or prevent weight gain. Which of these statements describe environmental factors that can make it difficult for an individual to loose weight or maintain weight loss?
to lose weight or meintain weight loss?
a. decreased portions sizes in restaurarts and movie theaters.
b. increased use of personal vehicles, telephones, and computers.
c. increased number of meals eaten outside the home
Answer:
c. increased number of meals eaten outside the home
Explanation:
Environment is the surrounding of living organism, where he gets to survive by meeting its needs.
Environmental factors are factors in the environment that are associated to growth and development example is temperature.
The environment an individual stays have a great influence on the physical expression and character of the individual.
For a fat person the environment had played out his role which should be controlled to achieve a significant weight loss. Increasing number of meals eaten outside the house is one major factor that would not allow such individual to loose weight. Intake of food should be greatly controlled and watched to achieve weight loss.
The muscle that originates on the sacrum and transverse process of each vertebra and inserts on the spinous process of the third or fourth more superior vertebra is the ________ muscle.
Answer:
The muscle that originates on the sacrum and transverse process of each vertebra and inserts on the spinous process of the third or fourth more superior vertebra is the Longissimus muscle
Explanation:
The Longissimus is a group made of three muscles: longissimus capitis, longissimus cervicis and longissimus thoracis. It has the length of the vertebral column.
It is placed in the back, and as the statement says, it originates on the sacrum and transverse of each vertebra. Each of them originates at the transverse elements and insert in the costal ones.
Your mom has started complaining to you about her varicose veins and is thinking about surgery. What true information could you tell about varicose veins?
Answer:
One very true and essential information to know about varicose veins is that there is often re-occurrence following after surgery.
Explanation:
Varicose veins are a group of large, benign, twisted, and superficial veins on the skin surface. They may come with no side effect in some sufferer (asides from the physical appearance), and can cause chronic pain and discomfort in others, usually pointing to an underlying circulatory problem. Varicose veins are caused by damaged or weak valves in the veins, and complications like bleeding might occur. Some people with the risk of developing this disease are obese people, people with genetic tendencies, and usually pregnant women. Treatment methods includes compression stocking, a lifestyle change, and some medical procedures like surgery. After surgery, there is usually re-occurrence.