4. An albino man marries a normally-pigmented woman who had an albino mother. Show the types...

4. An albino man marries a normally-pigmented woman who had an albino mother. Show the types of children that this couple may have and the proportions of each. (Albino is recessive; normal is dominant).

Solutions

Expert Solution

In an albino person both the alleles are recessive i.e. a/a.

In a non albino person the alleles maybe homozygous or heterozygous. Heterozygous is A/a and homozygous is A/A.

So in this case the father is is albino (a/a) and the mother is non albino (A/a). Mother is is not albino but is heterozygous carrier of albino allele because her mother was albino so the daughter must have received a recessive allele from her mother and the dominant allele from her father.

Alleles of the mother - A / a

Alleles of the father - a / a

Here - A is dominant allele, a is the recessive allele.

Father and Mother	A	a
a	A / a	a / a
a	A / a	a / a

As you can see in the above table the combination of various allele of mother and father are given. This gives the probability of all types of young ons that can be produced.

From the table we conclude that out of the total number of:-

1.Two child would be carrier but do not express the albino condition - A /a

2. Two child would be expressing the albino condition - a / a

Thus out of the the total number of child the probability of a child that is non albino but carrier is 1/2.

The probability of a child suffering from albino condition is 1/2.

Thank you. Please do like the answer. Thank you dear students.

gladiator answered 1 week ago

Next > < Previous

Related Solutions

A woman with “hitch-hiker’s thumb” marries a man who lacks this trait (but whose mother had...

A woman with “hitch-hiker’s thumb” marries a man who lacks this trait (but whose mother had it). What is the probability that a child born to this couple will have a hitch-hiker’s thumb?

Albinism is a recessive trait. An albino man has children with a non-albino woman whose mother...

Albinism is a recessive trait. An albino man has children with a non-albino woman whose mother was albino and father was not. What is the chance their child will be albino?

A woman who is a carrier for the cystic fibrosis (cf) allele marries a man who...

A woman who is a carrier for the cystic fibrosis (cf) allele marries a man who is also a carrier. What percentage of the woman’s eggs will carry the cf allele?____________ What percentage of the man’s sperm will carry the cf allele?____________ The probability that they will have a child who carries 2 copies of the cf allele is equal to the percentage of eggs that carry the allele times the percentage of sperm that carry the allele. What is...

A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal...

A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was six feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. How many of their daughters might be expected to be color-blind and of normal height? Justify your answer.

5. A man whose blood type is B, and whose mother was type O, marries a...

5. A man whose blood type is B, and whose mother was type O, marries a woman with type A, whose father was type O. What are the genotype for the man and his wife and the genotypes and phenotypes of any offspring? Show cross. Man’s Mother genotype: Woman’s father’s genotype: Man’s genotype: X Woman’s genotype: Offsprings phenotype ( blood type) 6. A man, whose blood type is A and whose mother had blood type O marries a woman whose...

A colorblind man marries a woman of normal vision. They have sons and daughters, all with...

A colorblind man marries a woman of normal vision. They have sons and daughters, all with normal vision and all of whom marry normal-visioned persons. Where among the grandchildren may colorblindness be expected to appear?

1) A woman with blood type A marries a man with blood type B. Their three...

1) A woman with blood type A marries a man with blood type B. Their three children have blood types A, AB, and B. Which trait, if any, is dominant? Explain. What are the genotypes of the parents? What is the probability of these parents having a child with blood type O? Show your Punnett square.

A man with type A blood whose parents were both type AB marries a woman with...

A man with type A blood whose parents were both type AB marries a woman with type B blood whose parents were both type AB. If you were the paramedic who had to perform a transfusion to save the life of their child, what type of blood would you use? (Draw a Punnett square to help you).

A normal man marries an affected woman with an X-linked recessive disease. The expected genotypes of...

A normal man marries an affected woman with an X-linked recessive disease. The expected genotypes of their offspring are_________.

If a colorblind man marries a normal vision woman and have color blind daughter. What is...

If a colorblind man marries a normal vision woman and have color blind daughter. What is the probability that their next child will be color blind? What is the probablity that their next child will have normal vision?

Subjects