Which of the following correctly identifies a source of variation in both asexual and sexual reproduction?
Asexual Sexual
(A) Cloning Natural selection
(B) Crossing over Cell division
(C) Spontaneous generation Fertilisation
(D) Mutation Mutation - HSC - SSCE Biology - Question 10 - 2011 - Paper 1
Question 10
Which of the following correctly identifies a source of variation in both asexual and sexual reproduction?
Asexual Sexual
(A) Cloning Natural selection
(B... show full transcript
Worked Solution & Example Answer:Which of the following correctly identifies a source of variation in both asexual and sexual reproduction?
Asexual Sexual
(A) Cloning Natural selection
(B) Crossing over Cell division
(C) Spontaneous generation Fertilisation
(D) Mutation Mutation - HSC - SSCE Biology - Question 10 - 2011 - Paper 1
Step 1
Identify the source of variation in asexual reproduction
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
In asexual reproduction, variation can occur primarily through mutations. Asexual reproduction results in offspring that are genetically identical to the parent unless mutations occur in the DNA.
Step 2
Identify the source of variation in sexual reproduction
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
In sexual reproduction, there are multiple sources of variation, including mutations, crossing over during meiosis, and the independent assortment of chromosomes. However, mutations are a common source present in both reproduction types.
Step 3
Determine the correct option
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
Based on the analysis of sources of variation, the answer is (D) Mutation, as it is the only option that applies to both asexual and sexual reproduction.
