What the genotypes of the female gametes would be

Reference no: EM133477274

Case: While human eye colour is affected by many genes there are major genes that determine whether eyes will be brown or not-brown (blue, green, grey etc), the O gene and the H gene. The O gene produces a protein that helps deposit melanin in the iris, making eyes brown. The H gene protein makes the O gene protein effective so is epistatic to the O gene. Recessive mutations in both genes make their proteins ineffective. Therefore, anyone who is homozygous recessive for either gene will have "not brown" eyes.

You have two people with the following genotypes: female Hh oo and male Hh Oo

Question 1. What colour eyes (brown or not brown) will the female have?

Question 2. What colour eyes (brown or not brown) will the male have?

Question 3. Imagine a cross between these two individuals. For the Punnett Square indicate what the genotypes of the female gametes would be in the boxes A - D. Answers MUST be separated with a comma.

Question 4. Indicate the genotype of one possible male gamete that could be in box E

Question 5. Indicate the genotypes of the offspring in the first row, that could be in boxes 1- 4.

Question 6. Indicate the genotypes of the remaining male gametes that could be in boxes F - G.

Question 7. Work out the final ratio of brown to not-brown eyes if the Punnett square was fully completed.

Reference no: EM133477274

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