Samples of DNA were taken from four individuals - VCE - SSCE Biology - Question 33 - 2013 - Paper 1
Question 33
Samples of DNA were taken from four individuals. The samples went through a series of steps and the resulting DNA is shown.
**original samples**
- DNA sample 1
- DN... show full transcript
Worked Solution & Example Answer:Samples of DNA were taken from four individuals - VCE - SSCE Biology - Question 33 - 2013 - Paper 1
Step 1
A. Samples 1 and 2 are from individuals belonging to the same species.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement suggests a specific relationship that isn't directly supported by the diagram. While samples 1 and 2 may appear similar, more information is needed to confirm they belong to the same species.
Step 2
B. Treatment at step X would have included cooling each of the original samples.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The diagram does not provide information regarding the treatment applied at step X, so this conclusion cannot be confidently drawn.
Step 3
C. Treatment of mixed samples at step Y would have included the addition of DNA helicase.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
There's no indication in the diagram regarding the specific enzymes used at step Y, thus making this statement uncertain.
Step 4
D. Individuals belonging to samples 1 and 3 are more closely related than individuals belonging to samples 3 and 4.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The diagram indicates that DNA samples 1 and 3 share similarities that suggest a closer relation compared to samples 3 and 4, corroborating option D as the correct choice.
