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OLga [1]
3 years ago
13

Pls help ):)

Biology
1 answer:
WINSTONCH [101]3 years ago
5 0

Answer:

nose inglés xdee skakjsjs

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A seed was discovered and, when planted, grew to be a large flowering plant. ​
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how many ATP molecules must be invested to break one molecule of glucose into 2 molecules of pyruvate​
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Generally speaking, which of the following mutations would most severely affect the protein coded for by a gene?a) a base substi
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Answer is C.

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For A and B, a base substitution affects one of the three bases that comprise a codon, the DNA/RNA unit that corresponds to a particular amino acid. If one base is substituted, one codon and therefore one amino acid will be affected. Codons have built-in redundancy, so even by changing one base, the new codon sometimes still corresponds to the same amino acid. Therefore, a base substitution at most affects one amino acid, and sometimes doesn't affect it all.

Frameshift mutations cause a lot more trouble. These occur when you have a deletion or insertion that changes the number of bases in your gene. As a result, the "frame" of the codons changes (everything shifts one way or the other by the number of bases added/removed). This affects EVERY codon downstream of the mutation, so you can imagine that such a mutation would have a bigger effect the closer to the start of the gene it occurs. This is why C is correct.

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What do animal and plant cells have in common
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