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A pair of homologous chromosomes involved in normal meiosis in an ovary carries the alleles shown - VCE - SSCE Biology - Question 4 - 2009 - Paper 1
Question 4
A pair of homologous chromosomes involved in normal meiosis in an ovary carries the alleles shown. Chromosomes detected in eggs produced would include: A. B. C. ... show full transcript
Worked Solution & Example Answer:A pair of homologous chromosomes involved in normal meiosis in an ovary carries the alleles shown - VCE - SSCE Biology - Question 4 - 2009 - Paper 1
Step 1
Chromosomes detected in eggs produced would include:
Answer
In this case, the alleles F, G, h from one chromosome and f, g, R from the other chromosome are involved. During meiosis, the homologous chromosomes undergo recombination and segregation. The chromosomes that can be formed in the eggs are:
- F G R: Combining F from one chromosome with G and R from the other.
- f g h: Combining f from one chromosome with g and h from the other.
- F g R: Taking F and combining it with g and R.
- f G h: Combining f with G and h.
Upon looking at the provided options A, B, C, and D, the correct chromosomes that can be found in the eggs produced during meiosis are represented by:
C: F G h R, which corresponds to one of the valid combinations.