*WORTH 20 POINTS* Having dimples is a dominant trait having no dimples is recessive.
2 answers:
Answer:
See the attached image.
Explanation:
Having dimple is dominant over having no dimple.
The allele of dimple is D and the alternate form is d.
A father with Dd genotype mates with a mother with Dd genotype, the genotype and phenotype of the offspring will be:
1 DD - dimpled
2 Dd - dimpled
1 dd - no dimple
See the attached image for the punnet square result.
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C. 50%
Explanation:
- The woman has blood group O so her genotype will be
.
- The husband has blood group A so his genotype could either be
.
- Since the husband's father was having blood group B so it is obvious that the husband is heterozygous with genotype
.
- A cross between heterozygous dominant and homozygous recessive is a test cross and will yeild 50% offspring with recessive genotype.
- So the probability of the child having blood group O is 50%.