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liraira [26]
3 years ago
8

What do we mean when we say that the genetic code is degenerate?A single codon can encode more than one amino acid.An amino acid

can be encoded by more than one codon.Codons are not always read correctly, resulting in the insertion of the wrong amino acid.A frameshift mutation usually results in abnormal protein.
Biology
1 answer:
Arada [10]3 years ago
8 0

Answer:

An amino acid can be encoded by more than one codon.

Explanation:

Codons are triplets of nucleotides in mRNA that are used for the protein synthesis (translation). A codon specifies a single amino acid, but there are exceptions. tRNA molecule contain anticodons, triplets of nucleotides that are complementary to codons. So, during the translation, tRNA carries the amino acid, that corresponds to the codon in mRNA.

Degenerate genetic code (more than one codon can code for the same amino acid) is important, because when point mutation occurs it is possible that the amino acid remains unchanged.

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2 years ago
Multiple Select Question
Diano4ka-milaya [45]

The TRUE statements are 'proteins often have more than one transmembrane domain'; 'they are regions of a transmembrane protein that actually pass through the lipid bilayer' and 'they are usually shaped like alpha-helices'.

A transmembrane domain is a membrane-spanning region within a protein. The transmembrane domains are hydrophobic regions that can be inserted into the cell membrane.

The transmembrane domains are usually shaped like alpha-helices.

This secondary structure (alpha-helices) causes the amino acid R-groups to project radially, thereby these side chains can interact with each other.

Proteins need only a single transmembrane domain to be anchored to the membrane, but they often have more than one.

For example, Acyl-coenzyme A cholesterol acyltransferases 1 and 2 (ACAT1 and ACAT2)  have multiple transmembrane domains.

The transmembrane domains are regions of a transmembrane protein that actually pass through the lipid bilayer.

These domains contain amino acids with hydrophobic R-groups that pass through the membrane and interact with the hydrophobic tails of the fatty acid chains present in the lipid bilayer.

The transmembrane domains anchor transmembrane proteins to the lipid bilayer.

The interactions between amino acids of the transmembrane domains and fatty acids in the lipid bilayer help to anchor transmembrane proteins and stabilize the cell membrane.

Learn more in:

brainly.com/question/9444547?referrer=searchResults

6 0
1 year ago
How does negative feedback mechanism work in osmoregulation
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Answer:

Osmoregulation is an example of a negative feedback, homeostatic control system. This system detects changes in the salinity of the water Chinook salmon live in, working to keep the body water concentration constant.

Explanation:

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The answer to this is B
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5. In humans, normal skin pigmentation is due to a dominant allele (A), while the recessive allele (a) causes albinism (lack of
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Answer:

There are 2 possible punnett squares. In the case Kendal is a carrier, cross Aa with aa for Kent. In the case Kendal is not a carrier, cross AA with aa.

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3 years ago
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