Scientists have investigated how the nucleus accumulates the enzymes that it needs to function - VCE - SSCE Biology - Question 2 - 2014 - Paper 1
Question 2
Scientists have investigated how the nucleus accumulates the enzymes that it needs to function. They found a possible answer while studying a particular mutant form ... show full transcript
Worked Solution & Example Answer:Scientists have investigated how the nucleus accumulates the enzymes that it needs to function - VCE - SSCE Biology - Question 2 - 2014 - Paper 1
Step 1
A. Polypeptide N
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Answer
Polypeptide N accumulates in the nucleus. This indicates that the normal polypeptide form has the necessary signals for nuclear import.
Step 2
B. Polypeptide M
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Answer
Polypeptide M does not accumulate in the nucleus, suggesting that the mutation has disrupted nuclear localization signals required for nuclear transport.
Step 3
C. Polypeptide A
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Answer
Polypeptide A accumulates in the nucleus, indicating that it retains the necessary signals for nuclear import, similar to the normal form.
Step 4
D. Polypeptide B
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Polypeptide B also accumulates in the nucleus, showing that it possesses the required signals for entry into the nucleus.
Step 5
E. Polypeptide C
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Answer
Polypeptide C does not accumulate in the nucleus, indicating a possible loss of function due to a lack of necessary signals.
