In guinea pigs two genes have the following alleles - VCE - SSCE Biology - Question 8 - 2006 - Paper 1
Question 8
In guinea pigs two genes have the following alleles.
Gene 1: hair length Gene 2: hair type
S : long hair W : straight hair
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Worked Solution & Example Answer:In guinea pigs two genes have the following alleles - VCE - SSCE Biology - Question 8 - 2006 - Paper 1
A. more with long, wavy hair than short, wavy hair.
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This result would be expected if the genes assort independently, which they do not in this case. Therefore, it is unlikely.
B. more with short, straight hair than short, wavy hair.
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This result is also unlikely, as it assumes independent assortment, which is not applicable for linked genes.
C. approximately equal numbers of long, straight hair and long, wavy hair.
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This option represents independent assortment, which is not expected in this scenario.
D. approximately equal numbers of long, straight hair and short, wavy hair.
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Since the genes are likely linked, this outcome would seem reasonable because it leads to more parental phenotypes.
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