Question

Кареглазый левша, страдающий гипертрихозом (оволосе¬ние ушной раковины), женится на голубоглазой правше. Отец муж¬чины был голубоглазым, а мать женщины была левшой. Какова ве¬роятность рождения голубоглазых левшей с гипертрихозом от этого брака, если карий цвет глаз и умение лучше владеть правой рукой являются доминантными аутосомными признаками, а гипертрихоз - сцеплен с Y-хромосомой?

Answer 1

 кареглазый правша,кареглазый левша, голубоглазый правша, голубоглазый левша.

Answer 2

Probability of having blue-eyed left-handed children with hypertrichosis

To determine the probability of having blue-eyed left-handed children with hypertrichosis, we need to consider the genetic traits and inheritance patterns involved.

1. Genetic Traits: - Blue eye color and the ability to better control the right hand are considered dominant autosomal traits. - Hypertrichosis, or excessive hair growth, is linked to the Y-chromosome.

2. Parents' Traits: - The father is blue-eyed and left-handed. - The mother is right-handed.

3. Inheritance Patterns: - Blue eye color and the ability to better control the right hand are dominant autosomal traits, meaning that if an individual has at least one copy of the dominant allele, they will express the trait. - Hypertrichosis is linked to the Y-chromosome, which is passed down from father to son.

Based on the information provided, we can make the following assumptions: - The father is heterozygous for both blue eye color and the ability to better control the right hand. - The mother is homozygous for brown eye color and the ability to better control the right hand.

To calculate the probability, we need to consider the inheritance of each trait separately.

Inheritance of Eye Color and Hand Dominance:

Since blue eye color and the ability to better control the right hand are both dominant autosomal traits, the possible genotypes and phenotypes for the children are as follows:

- Father's genotype: BbRr (B = blue eye allele, b = brown eye allele, R = right hand dominance allele, r = left hand dominance allele) - Mother's genotype: bbRR

Possible genotypes and phenotypes for the children: - BbRb: Blue-eyed, left-handed - BbRR: Blue-eyed, right-handed - bbRb: Brown-eyed, left-handed - bbRR: Brown-eyed, right-handed

The probability of having blue-eyed left-handed children is 25% (1 out of 4 possible combinations).

Inheritance of Hypertrichosis:

Hypertrichosis is linked to the Y-chromosome and is passed down from father to son. Since the father has hypertrichosis, there is a possibility that his sons may inherit this trait.

However, the information provided does not specify whether the mother carries the Y-chromosome-linked hypertrichosis allele. Without this information, we cannot determine the probability of having children with hypertrichosis.

In conclusion, based on the given information, the probability of having blue-eyed left-handed children is 25%. However, we cannot determine the probability of having children with hypertrichosis without additional information about the mother's genotype for the Y-chromosome-linked hypertrichosis allele.