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IgorC [24]
3 years ago
11

From a chemical view, how is an amino acid is being recognized by its specific aminoacyl tRNA synthetase?

Biology
1 answer:
nydimaria [60]3 years ago
5 0

Answer:

An aminoacyl-tRNA synthetase (aaRS or ARS), also called tRNA-ligase, is an enzyme that attaches the appropriate amino acid onto its corresponding tRNA. It does so by catalyzing the transesterification of a specific cognate amino acid or its precursor to one of all its compatible cognate tRNAs to form an aminoacyl-tRNA.

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Why is it important that fertilization occurs with haploid gametes, and not diploid gametes?
miskamm [114]

Answer:

Because fertilization in diploid gametes would double the number of chromosomes in the zygote. If chromosome numbers are disturbed the organism develops abnormalities or even die.

7 0
3 years ago
Some cells in your body carry more than one copy of its genome (they have multiple nuclei). What are these cells called ?
Sladkaya [172]

Answer:

Interestingly, some cells in the body, such as muscle cells, contain more than one nucleus ((Figure)), which is known as multinucleated. Other cells, such as mammalian red blood cells (RBCs), do not contain nuclei at all.

Explanation:

Also I searched this up. I hope this helps :)

5 0
3 years ago
The graphs below show the changes in crab color at one beach.
vazorg [7]

Answer:

C. Both light tan and dark tan body color provided an advantage to the crabs on this beach, but not necessarily in other crab habitats.

Explanation:

The changes in the number of light tan and dark tan body color of crabs that occured can be described as a diversifying or disruptive selection.

This disruptive selection occurs when individuals with extreme traits on both ends of the spectrum become selected against individuals of ntermediate or medium traits.

In the case of the crab, their environment favors the selection of both extreme values as against those intermediate individuals, as both light tan and dark tan body color of the crabs gives them advantage over others in this particular environment. This may only be obtainable in this environment or similar beach environment with the same settings and conditions.

3 0
3 years ago
2. There are many different types of cancer.
lina2011 [118]

Answer:

i think its a im not sure though

7 0
3 years ago
These bacteria change the nitrogen in the atmosphere into a form that we can use to make proteins
Dmitry_Shevchenko [17]

Answer:

Cyanobacteria, Anabaena and Azotobactor are called Nitrogen fixing bacteria. These bacteria change the nitrogen in the atmosphere into a form that is used by the plants to make proteins. Plants take nitrogen in the form of nitrates. The atmospheric nitrogen is first converted into ammonia after that ammonia is converted into nitrates and this nitrates use by the plants to make proteins.

6 0
3 years ago
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