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avanturin [10]
3 years ago
7

One way in which the anabolism of pyrimidine nucleotides differs from that of purine nucleotides is that

Biology
1 answer:
wel3 years ago
5 0

Answer:

a) the pyrimidine ring is assembled before being bonded to the ribose phosphate, whereas the purine ring is bonded to the ribose phosphate as it is formed

Explanation:

There are two ways for the synthesis of purines and pyrimidines:

  1. de novo synthesis-from basic simple units
  2. "recycling" synthesis-reuse of metabolites

Purines are synthesized directly on ribose sugar, in segments.

Pyrimidines are attached to the ribose after the synthesis of the base.

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Harlamova29_29 [7]

Answer:

Cross overs can lead to formation of chromosome pairs that have no mutant allele.

Explanation:

Cross overs can lead to formation of chromosome pairs that have no mutant allele.

For example -

Suppose "X" is a mutant  allele and "x" is a mutant free allele.

Now when two homologous chromosomes contains a single mutant allele in different parts of the chromosome are crossed the following offspring are produced

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3 years ago
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4 years ago
how is it possible for a child to end up with a diiferent genotype or phenotype than either of their parents?
Naddik [55]
Tall parents can have a short child, short parents can have a tall child , and two parents of the same height may have a child in between? 
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4 years ago
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"When the body is relying on internal energy reserves to continue meeting its energy demands, it is in the ________ state."
zloy xaker [14]

Answer:

Postabsorptive state

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How many bases make up a codon?
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