1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mumz [18]
3 years ago
7

How might the DNA-RNA-protein pathway affect cellular differentiation? For example, cells in the interior of the body may be sig

naled by genes to become either muscle or connective tissues, while other cells on the exterior of the body will be signaled to become epithelial cells.
Biology
2 answers:
Bess [88]3 years ago
7 0

The differentiation is based on a set of activation / inactivation of genes (parts of DNA) via complex cascades of regulation. We can not consider a differentiating cell individually. Indeed, its "expression profile" depends on its environment: cell-cell interactions, cell-matrix. It is these extra-cellular signals that will trigger the internal regulation signals. The establishment of plans for the organization of a Drosophila embryo or the development of limb buds in mice are well-known models. In these models, so-called "positional" information plays a large role: a substance present in the form of a concentration gradient in the extracellular medium will trigger or not intracellular signals depending on the dose at which the cells are exposed along this gradient.

Ghella [55]3 years ago
4 0

Answer:

Though all the cells of an organism have the same DNA, they utilize the genetic make up differently. Each cell uses specific genes in the chromosome and "turns off" the genes they are not using. Therefore the DNA maybe the same, but each sell has different RNA, thus different protein molecules are produced.

Explanation:

The process of cellular differentiation is when similar and unspecialized cells produced during the division of a zygote become different and specialized. Example, cells in the liver and kidneys have the same DNA,but they use the DNA in different ways thus have different RNA and different protein molecules, thus performing different functions.

You might be interested in
Can arid conditions be a limiting factor ?
Eddi Din [679]

<em><u>limiting factor is generally energy availability while in low latitudes moisture is the limiting factor to growth.</u></em>

5 0
3 years ago
A true-breeding pea plant with round, green seeds was crossed to a true-breeding plant with wrinkled, yellow seeds. Round and ye
Nat2105 [25]

Answer:

See explanations

Explanation:

Gregor Mendel developed the model of heredity that now bears his name by experiments on various charactersitics of pea plants: height (tall vs. Short); seed color (yellow vs. Green); seat coat (smooth vs. wrinkled), etc. The following explanation uses the tall/short trait. The other traits Mendel studied can be substituted for tall and short.

Mendel started out with plants that "bred true". That is, when tall plants were self-pollinated (or cross-pollinated with others like them), plants in following generations were all tall; when the short plants were self-pollinated (or cross- pollinated with others like them) the plants in following generations were all short.

Mendel found that if true breeding Tall [T] plants are crossed (bred) with true breeding short [t] plants, all the next generation of plants, called F1, are all tall.

Next, he showed that self-pollinated F1 plants (or cross- pollinated with other F1 plants) produce an F2 generation with 3/4 of the plants tall and 1/4 short.

A. 1/4 of the F2 generation are short plants, which produce only short plants in the F3 generation, if they are self- pollinated (or crossed with other short F2 plants;) these F2 plants breed true.

B, 1/4 of the F2 generation (1/3 of the tall plants) are tall plants that produce only tall plants in the F3 generation, if they are self-pollinated; these tall F2 plants breed true.

C. 1/2 of the F2 generation (2/3 of the tall plants) are tall plants that produce 1/4 short plants and 3/4 tall plants in the next [F3] generation, if they are self-pollinated. This is the same proportion of tall to short that F1 plants produce.

3 0
3 years ago
What type of event can disrupt the energy cycle
IRISSAK [1]

Answer:

Climate change is disruptive because humans have adapted to a narrow range of environmental conditions.

HOPE THIS HELP YOU!!! ;)))

7 0
3 years ago
A. What is the diploid number of the species shown in Figure 1?
Sloan [31]

Answer:

I hope this helps you

Explanation:

1)This number is abbreviated as 2n where n stands for the number of chromosomes. For humans, the diploid chromosome number equation is 2n = 46 because humans have two sets of 23 chromosomes (22 sets of two autosomal or non-sex chromosomes and one set of two sex chromosomes).

2)Under normal conditions, the haploid number is exactly half the total number of chromosomes present in the organism's somatic cells. For diploid organisms, the monoploid number and haploid number are equal; in humans, both are equal to 23.

7 0
3 years ago
Which therapeutic cloning application is most likely a benefit to society
FinnZ [79.3K]
<span>Therapeutic cloning means that it could be used to heal people so the best way to benefit the society while doing this would be to help cure diseases. Example would be cloning body parts and testing diseases on them and then developing medication that can help against them. Also you could clone exact body parts that fit you so you could have a new kidney or lungs if necessary that fit you perfectly.</span>
6 0
3 years ago
Other questions:
  • Which of the organisms might share the same community? -kangaroos-jack rabbit -cyclops -green algae -shelf fungus
    10·1 answer
  • How are the different types of protists classified? A. By their method of obtaining nutrition. B. By their method of movement. C
    9·1 answer
  • Describe how enzymes break down food.
    11·1 answer
  • What produces most of the earth oxygen
    5·2 answers
  • When a large number of species, sometimes entire major taxa, go extinct in a short period of time on the geological scale, the c
    6·1 answer
  • What is the attractive pull between any two objects
    6·2 answers
  • Where are many critical biodiversity hotspots located?
    7·1 answer
  • What causes plaque to form inside arteries? CHOOSE ALL THAT APPLY
    8·1 answer
  • A skull with a long snout and large nose cavity could mean
    8·1 answer
  • A population of 20,000 individuals is surveyed and found to be composed of 9,800 individuals with blond hair and 10,200 with bro
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!