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padilas [110]
3 years ago
5

Which of the following best explains the current state of the majority of the worlds fisheries

Biology
2 answers:
melamori03 [73]3 years ago
7 0

Answer:

That they are currently overfished.

Explanation:

OPTIONS

A)they are being sustainably harvested

B)they are currently overfished

C)they are currently underfished

D)they are already depleted

Elena L [17]3 years ago
7 0

Answer:

B. they are currently overfished

Explanation:

i just got it right on a test

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A cell with a predominance of smooth endoplasmic reticulum is likely specialized to ________.
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Note the two transcribed and translated DNA strips below. The two strips are identical except for a point mutation, where the fi
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Full question attached

Answer/ Explanation:

The original DNA sequence has a point mutation changing a G to a T. The resulting mRNA produced is always complementary to the DNA from which it is synthesised, so the original mRNA sequence has a T, whereas the mutated mRNA has a U. The tRNA is complementary to the mRNA, so the original has a G, and the mutated has a T.

<h3>Original DNA</h3>

GTTGGCGAATGAACGGAGGCTGACGTCTAAGCCTAGAAAAATTGG

RNA

CAACCGCUUACUUGCCUCCGACUGCAGAUUCGGAUCUUUUUAACC

tRNA

GUUGGCGAAUGAACGGAGGCUGACGUCUAAGCCUAGAAAAAUUGG

<h3>_______________________________________________</h3><h3>Mutated DNA</h3>

GTTGGCGAATGAACTGAGGCTGACGTCTAAGCCTAGAAAAATTGG

RNA

CAACCGCUUACUUGUCUCCGACUGCAGAUUCGGAUCUUUUUAACC

tRNA

GUUGGCGAAUGAACTGAGGCUGACGUCUAAGCCUAGAAAAAUUGG

This is a point mutation called a substitution. This does not affect the entire sequence of the protein, because the mutation is "in frame" meaning the mRNA sequence is still read in the same way by the protein producing machinery. However, it does change the 5th codon from UGC to UGU. If we look up the genetic code, we can see that both of these codons code for cysteine, so there will be no change in the amino acid sequence of the protein

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