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MAVERICK [17]
3 years ago
5

Digestion of carbohydrates within the small intestine involves enzymes that come from the

Biology
1 answer:
ki77a [65]3 years ago
7 0
Pancreas. brush border enzyme<span> of the </span>small intestine<span> that digests the sugar maltose.</span>
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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
Pavlova-9 [17]

Answer:

Answer is C.

Explanation:

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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3 years ago
The rhythmic, wavelike motion produced by smooth muscles in tubular visceral organs is called _______.
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Peristalsis

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2 years ago
Some people argue that human actions have caused and will continue to cause harm to Earth’s environment. They believe that we as
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A protein channel is the transportation protien that
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Whats the answers needing to be provided?

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3 years ago
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