Question

Both parents are homozygous for H substance gene, and both have type AB blood ($I^A I^B$ HH). What will be the phenotypic ratio of their children? A) 3/4 A: 1/4 AB B) 1/4 A: 2/4 AB: 1/4 B C) 9/16 A: 3/16 AB: 3/16 B: 1/16 O D) 3/16 A: 6/16 AB: 3/16 B: 4/16 O

          Both parents are homozygous for H substance gene, and both have type AB blood ($I^A I^B$ HH). What will be the phenotypic ratio of their children?
A) 3/4 A: 1/4 AB
B) 1/4 A: 2/4 AB: 1/4 B
C) 9/16 A: 3/16 AB: 3/16 B: 1/16 O
D) 3/16 A: 6/16 AB: 3/16 B: 4/16 O

Both parents are homozygous for H substance gene, and both have type AB blood (I^A I^B HH). What will be the phenotypic ratio of their children?
A) 3/4 A: 1/4 AB
B) 1/4 A: 2/4 AB: 1/4 B
C) 9/16 A: 3/16 AB: 3/16 B: 1/16 O
D) 3/16 A: 6/16 AB: 3/16 B: 4/16 O

Added by Raul R.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Adi S

09/08/2022

Step 1

Both parents are homozygous for the H substance gene and have type AB blood. This means the genotypes of the parents are HH for the H substance gene and IAIB for the blood type. Show more…

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Both parents are homozygous for H substance gene, and both have type AB blood (I^A I^B HH). What will be the phenotypic ratio of their children? A) 3/4 A: 1/4 AB B) 1/4 A: 2/4 AB: 1/4 B C) 9/16 A: 3/16 AB: 3/16 B: 1/16 O D) 3/16 A: 6/16 AB: 3/16 B: 4/16 O