Which of the following is primarily responsible for the expression of different genes on a chromosome?
Transcription factors.

DNA helicase.

DNA polymerase.

Homeostatic regulation.

Answers

Answer 1

Answer:

Transcription factors

Explanation:

i just learnd that in biology class...


Related Questions

Consider the following chemical reaction: Hb + O2 → HbO2 When this reaction is going from right to left, what process is occurring?

O a. oxygen unloading

O b. cellular respiration

O c. pulmonary ventilation

O d.oxygen loading

Answers

Answer: A, Oxygen Unloading

How might predict whether one of the siblings will have children that show the trait of albinism?

Answers

Answer: — Girls with albinism usually have OCA not OA and should be tested for the OCA genes. Boys can have OA or OCA. Sometimes doctors cannot tell if a child's hair and skin is affected by albinism just by looking at a child. Genetic testing may be able to tell which type of albinism your child has.

Explanation:

Albinism is usually passed either from one unaffected parent (OA) to a child or from both unaffected parents (OCA) to a child. A parent who is not affected with albinism but has the gene mutation that causes it is called a "carrier".

15. Cells found in plants and animals have similarities but can differ in function. Consider the following two organisms: a corn plant cell (Zea mays) and a camel cell (Bactrianus ferus). What is the best explanation for the difference in the cellular vacuole size between these two biotic organisms?

A. The corn cells' have a small vacuole size because it does not need long term water and
electrolyte storage.

B. The camel cells' have a small vacuole size because it does not need long term water and electrolyte storage.

C. The camel cells' have a small vacuole size because it is not in contact with toxins that need to be removed from the cell.

D. The corn cells' have a large vacuole size because it is in contact with many toxins in the soil which need to be removed from the cell.

Answers

The best explanation for the difference in the cellular vacuole size is option d. The corn cells' have a large vacuole size.

Explanation to the difference in the cellular vacuole size:

When there is the difference in the vacuole size that lies between the two biotic organism so it is due to the corn cells that contain high vacuole since they are in contact with various toxins in the soil that need to be eliminated from the cell.

hence, the correct option is d.

And, the rest of the options are wrong.

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Can you be allergic to peanut oil but not peanuts? Please have a real answer!

Answers

Answer:

it depends

Explanation:

most peanut allergies effect your skin i edviase you check with your doctor

A one-hectare forest community is sampled in early August. The sample yields 12 small trees, 4 types of vines, as well as 17 native shrubs that represent 10 species. What can be estimated from the sample for the shrubs in the forest community?

A. the forest’s productivity

B. the species richness

C. the degree of forest disturbance

D. the stability of the ecosystem

E. the uniformity of species distribution in the ecosystem

Answers

Answer:

The correct answer is - B. the species richness

Explanation:

Species richness determines the numbers of different species are present in an ecological community. It is a numerical value or count of different species present in a particular community.

The given information or data can only be used to estimate the species richness in the particular forest community as there is data available about the number of species presnt in this community.

Why are water and sunlight two abiotic factors that are important to most organisms?

Answers

All organisms need water to survive and plants/algae need sunlight to make food in photosynthesis. ... Organism, Population, Community and Ecosystem.

HOPE THIS HELPS

The average number of individuals of the same species per unit of area or volume at a given time is the
population's
O carrying capacity,
O birth rate.
O size.
Odensity.
O distribution.
Next >

Answers

Huhhhhhhhhhhhhhhhhhhhhhhhh

Which graph best represents directional selection?

Answers

The answer would be B for the directional selection graph

Answer:

Graph B

edge⬇️

P S Q R The biological levels of organization range from a single organelle all the way up to the biosphere in a highly structured hierarchy. Multicellular organisms are organized from the simplest to most complex: cells, tissues, organs, organ systems, organisms. Evaluate the model above. Select ALL of the statements that accurately depict the examples shown in the model. A) R shows an animal cell. B) O shows types of tissue. P shows organs in the endocrine system. D) P shows an organ system, the digestive system. E) S shows an organ system, the digestive system.​

Answers

Answer: the red thing pretend is blood and blue thing is water you first ta

Explanation:

Answer:

A) R → Q → P → S

Explanation:

I just took the test on USA Test Prep

5 5. Normally, the temperature inside the scrotum is slightly lower than normal body temperature. What do you predict would happen if the temperature inside the scrotum were a few degrees higher than normal body temperature instead? A. Sperm would not be able to travel through the vas deferens. B. Sperm would be stored in the epididymis rather than in the testes. c. Sperm would not be able to develop properly. D. The rate of sperm production would increase,​

Answers

Answer:

C. Sperm would not be able to develop properly.

Explanation:

There is an optimum temperature where sperm production is at its best. An increase or decrease in temperature may affect the quality and quantity of the sperm.

If the temperature inside the "sc-rotum" raises by few degree than normal body temperature, than the "sp-erm" would not be able to develop properly.

What is the function of "sc-rotum"?

A pouch, which is suspended from the groin, and comprising the "tes-tes" and some of the male "s-ex" accessory ducts is known as the "sc-rotum". The prime function of the "sc-rotum" is to maintain the temperature essential for the process of "sper-matogenesis", that is, by situating the testes external of the body cavity.

Within the human "sc-rotum", the temperature is 3.1 degree C lesser than the usual temperature of the body. In case, if the temperature elevates of the "sc-rotum", the degeneration of the germinal epithelium will take place, which will eventually result in sterility. Therefore, for the production of sperms within the testes, a lower temperature is needed, otherwise the development of the "sp-erm" will not take place appropriately.

Thus, the correct answer is option C.

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Many closely related species of ducks have different courtship dances that are performed to solidify a pair-bond. If you were to cross individuals from each of these species what would you expect to see in the hybrid offspring if behaviors related to pair-bond formation were completely due to genetics?

Answers

Answer:

I would expect to see a new phenotype in which the new duck hybrid species would express a new mixed courtship dance with the behaviors of both parentals.  

Explanation:

The cross between both parentals, each from different species, might produce a new phenotype that exhibits both parental dances. The new dance might be considered a hybrid of the parental dances.

Genetically speaking, we can think that there is a gene codifying for the courtship behavior in one species and another gene expressing a different courtship behavior in the other species. This cross´ product would be a hybrid species that exhibits a part of both parentals´ behaviors.

Lungs, Trachea, Diaphragm, Nose: Which organ system do these belong to?
Circulatory
Excretory
Digestive
Musculoskeletal
Respiratory

Answers

Answer:

Respiratory

Explanation:

they all come together and help with breathing and oxygen :)

Answer: respiratory system

Explanation:

How does competition limit the amount of individuals in populations?

Answers

Answer:

Due to competition, many animals starve, many become prey, etc.

Explanation:

How much is a safe amount of weight to lose a week?

Answers

Answer: Over the long term, it's smart to aim for losing 1 to 2 pounds (0.5 to 1 kilogram) a week. Generally to lose 1 to 2 pounds a week, you need to burn 500 to 1,000 calories more than you consume each day, through a lower calorie diet and regular physical activity

Answer:

1-2 pounds

Explanation:

uuhh just is lol

Explain why only certain substrate can combine with enzymes.
Help me please​

Answers

Answer:

sry i cant i too dubm need points tho

Explanation:

Determine the mRNA and amino acid sequence for the below DNA sequence.

Answers

AUGAGCCCCGCUAGGUUCUC

Describe how Mendel performed his pea plant experiments.

Answers

Answer:

Every offspring does not look alike they change with the generations

Explanation:

What are Tectonic Plates made of and what do they do?

Answers

Answer:

They move

Explanation:

Answer:

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.Plate tectonics move because they are carried along by convection currents in the upper mantle of the planet (the mantle is a slowly flowing layer of rock just below Earth's crust). Hot rock just below the surface rises and when it cools and gets heavy, it sinks again.

Explanation:

I need help with this

Answers

Answer:

what is the name of this website

or the book?

Help!!
Cells of the skeletal system are specialized in their structure to store minerals. Which of the following is the function of these cells?

Produce chemicals that transmit signals.

Prevent the spread of disease in the organism.

Provide support to the body.

Absorb excess water released by digestion.

Answers

Answer: Provide support to the body.

Explanation:

The skeletal system is a system which is formed by the bones. The bones are important for the structure and function of the body. The bones are connected with the muscles to allow the movement of the body, and they protect the vital organs like heart, lungs, brains, and others. They provide support to the soft tissues, organs, and muscles of the body. They keep the human body upright. The skeletal system provide shape to the body. It provides support by acting as regions of attachment of soft body parts and muscles.

What is the range for the following set of measurements?
3.1 mL, 2.7 mL, 4.6 mL, 1.9 mL, 8,7 mL

Answers

The range of the set is 6.8,
because 8.7-1.9=6.8

Vacuoles are found in plats, animals, and single-celled organisms.
In plants, vacuoles can occupy up to 90% of the cell while in animals, vacuoles are much
smaller and also help store ions and nutrients.
Single-celled organisms that live in aquatic environments like the paramecium, have a
contractive vacuole to maintain homeostasis.
Based on the information given, how does a vacuole help an organism maintain homeostasis?
A. It helps by regulating water amounts within the cell.
B. It helps by keeping a rigid structure at all times,
C. It helps by excreting salt as part of osmosis
D. It helps by controlling the movement of gases into the cell.

Answers

Answer: c

Explanation: because it helps by excreting

Tongue rolling is a dominant trait. Explain why it is possible for both parents being able to roll their tongue but their biological child is not able to do so.

Answers

The parents are heterozygous so when they have a kid they got the ressesive trait so they can’t roll there tongue

Answer:

The answer is 0 ( AKA A )

Explanation:

Parents form the same type of gene, which is Rr. Since all the genes are the same, there can not be a chance that the offspring can not roll the tongue. Next time focus on your work!! :3

explain how carbon atoms can move to co2 in the air into an organic molecule inside a plant and then back to co2 in the air

Answers

Answer:

Your carbon atom enters the leaf as CO2 (carbon dioxide) from the atmosphere. In the leaf, chlorophyll uses the energy from the sun to convert CO2 and H2O to the sugar glucose, C6H12O6. Your carbon atom is part of this molecule; it is now one of the carbons in the glucose.

Next, the glucose carrying your carbon atom is sent down the phloem tissue of the carrot plant to the root, which is the carrot itself. Enzymes in the carrot root connect the glucose molecule with your carbon atom into a chain with other glucose molecules, forming cellulose, or plant starch, and there you go. Your carbon atom went from being part of an atmospheric gas to a starch via photosynthesis and starch formation in the root.

Explanation:

In the 1860s Gregor Mendel performed numerous dihybrid crosses between pea plants. Dihybrid crosses involve the study of the inheritance patterns related to two different traits. In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BbFf x bbff cross would be expected to be heterozygous for both traits

Answers

Answer:

25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur

Explanation:

Available data:

the allele for black fur (B) is dominant over the allele for brown fur (b)the allele for short fur (F) is dominant over the allele for long fur (f)Cross: BbFf x bbff

Parentals)            BbFf      x         bbff

Phenotypes) Black/Short    Brown/Long

Gametes)       BF, Bf, bF, bf      bf, bf, bf, bf

Punnett square)      BF         Bf          bF          bf

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

F1) 4/16 = 1/4 = 25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur

    4/16 = 1/4 = 25% of the progeny is expected to be bbFf, expressing Brown and short fur

    4/16 = 1/4 = 25% of the progeny is expected to be Bbff, expressing Black and long fur

    4/16 = 1/4 = 25% of the progeny is expected to be bbff, expressing Brown and Long fur

Answer:

25%

Explanation:

Because i took the test

help me with this page pls

Answers

Answer:

1. Industrial

2. Industrial and transportation

3. Coal

4. Oil

5. Oil

6. Coal and natural gas

This confuses me, but I believe it is the answer. Don't rely on this answer too much, though.

Starfish are echinoderms, a term that means spiny skin. The rough covering serves as a natural barrier and protects the starfish from predators and the environment. What system includes skin?

Answers

Shawn is mayonnaise an instutment

which are examples of steroids? A. testosterone and trans fats B. cholesterol and phospholipids C. cholesterol and vitamin D D. estrogen and phospholipids

Answers

Answer:

A

Explanation:

because it really is suppose. to make u more stronger tougher and high testosterone.

3. In the image, which letter represents the enzyme?
a. Letter A
b. Letter B
c. Letter C
d. Letter D

Answers

Answer: The answer is C

Explanation:

The correct option is, (c) Letter C.

What is the enzyme?Proteins called enzymes assist our bodies' chemical reactions move forward more quickly. For several processes, including digestion and liver function, enzymes are crucial. Health issues might result from having too much or too little of a specific enzyme. Healthcare professionals can also use the enzymes in our blood to look for injuries and illnesses.

How do you classify enzymes?

According to the sort of process they catalyze, enzymes are divided into six categories:

Oxidoreductases. Transferases.Hydrolases.Lyases.Ligases.Isomerases.

What are the 7 enzymes?Depending on the type of reaction they catalyze, enzymes can be divided into seven different types. These groups include hydrolases, lyases, isomerases, ligases, translocases, oxidoreductases, transferases, and hydrolases.

What is enzyme structure?Proteins called enzymes are made up of amino acids connected by one or more polypeptide chains. The fundamental structure of a polypeptide chain refers to this arrangement of amino acids. This in turn dictates the enzyme's three-dimensional structure, including the active site's shape.

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On the African savanna, grasses feed wildebeest, gazelles, and hares. Lions, hyenas, and cheetahs hunt the wildebeest and gazelles. Vultures eat the remains from predator kills. Bacteria and fungi break down anything that is left over from the carcasses. Dung beetles eat the feces left behind from grass-eating animals like hares and elephants.

Which organism is a detritivore in this example?

Answers

Answer:

dung beetles

Explanation:

they reuse our waste for their needs

Other Questions
Read and choose the correct option to answer the question.Hola! Mi nombre es Anna Rosa y yo soy puertorriquea. En el 20 de septiembre de 2017, el huracn Mara entr por el pueblo de Yabucoa. Yo senta mucho miedo por los vientos fuertes del huracn. El bosque del Yunque perdi muchos rboles y animales. Mi familia y yo nos estuvimos preparando con comida y agua por dos semanas. Durante y despus del huracn, no tuvimos electricidad y tuvimos inundaciones y daos a la propiedad.Based on the text, what would a person from the USA have have done similarly? (1 point)Call security.Gather food and water.Seek refuge under a table.Shelter their pets. 20 points Please help!!! El modoEn cada oracin indica si el verbo subrayado est en el indicativo, subjuntivo oimperativo.1. Maana tenemos un examen de literatura. Ya estudiaste?2. No. Vmonos a casa, que me falta leer varias leyendas.3. Espero que leas todos los cuentos asignados.4. Mi historia favorita se desarrolla en una antigua hacienda.5. Dime, (cules de los cuentos no te gustaron?6. La profesora quiere que prestemos atencin al ambiente de cadacuento7. Nos dice que debemos enfocarnos en los personajes tambin. a) Identify ONE way in which the adoption of free-market economic policies in the late twentieth century changed global trade.b) Explain ONE difference in the way in which the adoption of free-market economic policies in the late twentieth century affected economies in two different regions.c) Explain ONE reason why many states adopted free-market economic policies in the late twentieth century. PLEASE HELP ILL GIVE BRAINLIEST!!!!Which line plot displays a data set with an outlier?(btw don't mind the one that's selected I accidentally pressed that) Helppoppp SPANISHHH. V what is Information communication technology? GIVING BRAINLIEST!!!!The ___________________ ends. The United States begins to focus on exploring and expanding _______. Q (1)Which of the following is a shared characteristic of humans and fern plants?A) They both perform cellular respiration to make usable energyB) They both ingest their food.C) They both make their own food (within their cells)D) Their cells have cell wallsQ (2)Which organelle can be found in the cells of a tree leaf, but not in the cells of a lizard?A) mitochondrionB) chloroplastC) ribosomeD) nucleusQ (3)Which of the following is true about how plants use energy in their cells?A) Energy is transferred from glucose into ATP to power cellular workB) Glucose is used directly to power cellular workC) Energy is transferred from ATP into glucose to power cellular workD) ATP is product of plant photosynthesis HURRY!!! ANSWER QUICK!!!Choose all the equations that have x = 5 as a possible solution.A. 20 - x = 5B. x + 2 = 7C. 3x = 15D. 5x = 15E. x- 5 = 0 A _____ is where most of the material is taught. It is not a scored activity. What Phenotypic Ratio would you expect to result from a cross between 2 plants that are both Heterozygous for height and seed color? Ex) HhYy X HhYyA). 1:2:1B).4:4:4:4C).8:8D).9:3:3:1 How many different federal taxes are listed? PLEASE ANSWER FAST!Complete the square. Fill in the number that makes the polynomial a perfect square quadratic. m - 16m + c. Find the value of c. Hurry up! The bus (come). Why did the students think it was important to include item #12 in their constitution? Find the length of the missing side of the triangle to the nearest tenth. Write 2 sentences explaining what taxes are Who is Pythagorean? when was he born? when did he die? Below is a list of factsabout exotic pets. Write oneparagraph of an argument describingwhy exotic pets such as chimpanzeesand tigers should not be allowed inhomes. Select the details that wouldbest support your claim from the listof fast facts. Was Manifest Destiny a positive or negative event?