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True [87]
3 years ago
9

If one compares the base sequences of related genes from different species, one is likely to find that corresponding ________ ar

e usually conserved, but the sequences of ________ are much less well conserved.
A. chaperons; exons
B. introns; exons
C. introns; chaperons
D. exons; introns
E. introns; proteins
Biology
1 answer:
just olya [345]3 years ago
7 0

Answer:

B. introns; exons

Explanation:

Related genes from different organism usually translate to proteins of indispensable functions. This means that the proteins must be similar in terms of amino acids produced. Therefore the coding region must be highly conserved. These can be found in the introns. Conversely, exons are not a part of the coding sequence and therefore not required for translation. These sequences may be less conserved.

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The PCR reaction mixture does not include: Group of answer choices DNA containing the sequence to be amplified. DNA ligase. all
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Answer: DNA ligase.

Explanation:

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3 years ago
In cocker spaniels, black color (b) is dominant over red (b), and solid color (S) is dominant over spotted (s).
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Answer:

<h2>e) 3/4 </h2>

Explanation:

As given;

Black (B) is dominant over red (b), so B is dominant over b.

Solid (S) is dominant over spotted color(s), so S is dominant over s.

Offspring of BBss and bbss individuals are:

Gametes of parent BBss are Bs, Bs and gamete of bbss are bs, bs

offspring are : all Bbss

Cross between these offspring is; Bbss×Bbss

Gametes of parent Bbss are: Bs and bs  as given that the genes are linked.

Bs, bs × Bb, bs

Offspring are = BBss, Bbss, Bbss, bbss

Black spotted (B_ss) = 3/4

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