Question

Choose the correct answer from the alternatives given.
If you had two guinea pigs of opposite sex, both homozygous, one black and one brown, but you didnt know which was the dominant characteristic, how would you find out the dominant colour?

• A. Mate them together and see what colour the offspring arethat will be the dominant colour
• B. Mate them together and see what colour the offspring arethe other will be the dominant colour
• C. Mate them together, then mate their offspring to see what colour the grandchildren arethat will be the dominant colour
• D. Mate them together, then mate their offspring to see what colour the grandchildren arethe other colour will be the dominant colour

Answer 1

The correct option is A Mate them together and see what colour the offspring arethat will be the dominant colour

Since both the guinea pigs are homozygous mating them will result in a heterozygous genotype in the offspring. In the heterozygous condition, the dominant allele has the ability to mask the effect of the recessive allele. Therefore, the phenotypic character that will be expressed will be the phenotype of the dominant character and the F1 progeny color will be the dominant color. So, the correct option is 'Mate them together and see what color the offspring are that will be the dominant color'.