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Arada [10]
3 years ago
6

How do only certain cells respond to particular signaling molecules that may be sent throughout the body?

Biology
1 answer:
zhuklara [117]3 years ago
7 0

Answer:

The presence of specific receptors on the target cells allows them to respond to the signaling molecules.

Explanation:

Signaling molecules move throughout the body but exhibit their effect only on certain cells. This is due to the presence of signaling molecule specific receptors on the target cells. The target cells have cell surface or intracellular receptors to which the signaling molecules bind to generate their effect. The absence of these receptors in other cells does not allow the signaling molecules to exert any physiological response on them.

For example, liver and muscle cells mostly have insulin receptors and respond to the presence of insulin in blood by increased uptake of glucose from the blood.

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In four o’clock plants, there are three phenotypes for flower color, but only two alleles. The table shows both the expected and
saveliy_v [14]
The answer for this is <span>The population evolved because the frequency of the alleles and the genotypes changed so its letter B hope that helps</span>
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What do replication and transcription have in common?
andrew-mc [135]
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Small body (nb), short spines (Is) and amoral are three recessive traits in stick the genes of which are linked on the same chro
melomori [17]

Answer:

The three genes in coupling are in repulsion.

Explanation:

Coupling happens when the dominant alleles and the recessive alleles are on the same homologous chromosome, while the repulsion happens when one chromosome has one dominant allele and one recessive allele and another homologous chromosome also has dominant and recessive alleles.

If the progeny has:

nb+ ls+ a/nb ls a ⇒ nb+ ls+ a

nb ls a+/nb ls a ⇒ nb ls a+

Where nb+ ls+ a is the dominant alleles and nb and nb+ is in middle.

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ls nb are on the same chromosome (both recessive)

ls nb, these two are in coupling with each other, but ls+ and a are on the chromosome and ls+ or nb+ are dominant, while nb+ and a are recessive on form a, thus, ls and nb, they are in repulsion with a.

3 0
3 years ago
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A population of tree frogs lives in a forest. A river runs through the middle of the forest. A particularly snowy winter is foll
OleMash [197]

Answer:

The flooding of half part of the forest have successful separate the population of frogs in that ecosystem into two different set of frogs. This is an example of allopatric speciation, that is, the population become separated as a result of geographical barrier. This separation will make the two set of frog population to become new species. On the long run, the two species may become unable to relate sexually.

Explanation:

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3 years ago
In 1997, Dolly the sheep was cloned. Which of the following processes was used?
allsm [11]

Answer:

Option (D).

Explanation:

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The adult's cell nucleus was fused with the enucleated sheep egg. The egg was then incubated in the surrogate female. The telomeres of Dolly sheep was found to be shorter than the normal individuals.

Thus, the correct answer is option (D).

4 0
3 years ago
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