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dalvyx [7]
3 years ago
5

What alternate form of genes do nucleic acids have that allows them to offer variability?

Biology
1 answer:
Lina20 [59]3 years ago
4 0
The answer is codon. The genetic code is redundant as there are multiple codons are make the same protein. The codon table is 64 variants of 3 letter nucleotides that make 20 different proteins. 3 of the 64 codons make 1 stop codon (AUG -Met) and 3 stop codons.
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In terms of energy storage, _______ is to animals what _______ is to plants.
Dafna11 [192]
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Which of the following best defines a gene pool?
scZoUnD [109]

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A. The sum of all genetic traits in a population's individuals at a given time

Explanation:

.........

6 0
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7 0
3 years ago
Barred feather pattern is a Z-linked dominant trait in chickens. What offspring would you expect from (a) the cross of a barred
Bezzdna [24]

Answer:

Let the "barred" allele be caller B and the "non-white" allele b. Since chickens use chromosomes Z  and W to determine sex, hens would have chromosomes ZW, and roosters would have chromosomes ZZ. A Z-linked gene is represented as a superscript on the Z chromosome, Z^{B} for the dominant allele and Z^{b} for the ressesive allele.

A barred hen would have a copy of B on its Z chromosome, a non-barred rooster would have both copies of b on both Z chromosomes. Using Punnet squares to represent the crosses we get the following cases:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{B} & W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of two barred heterozygote roosters to two non-barred hens. Crossing them we get:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{b} & W \\ \ Z^{B} & Z^{B}Z^{b} & Z^{B}W \\ \ Z^{b} & Z^{b}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of one barred heterozygote rooster to one barred hen to one non-barred rooster to one non barred hen.

6 0
3 years ago
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