Answer to Question #154542 in Genetics for Ashwani Kumar Gupta

Question #154542

The genes for Tyrosinemia and Marfan syndrome are divided into 4 map units on

chromosome 15. In a couple, the male is heterozygous for these genes inherited from different

parents. The woman is the carrier of the tyrosinemia gene. Tyrosinemia is transmitted in an

autosomal recessive manner, and Marfan syndrome is transmitted in an autosomal dominant

manner. What are the chances of having a healthy child in the family?


1
Expert's answer
2021-01-12T04:03:47-0500

25% or "\\frac{1} {4}"


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Comments

Ashwani Kumar Gupta
12.01.21, 19:19

According to Swedish geneticists, some forms of schizophrenia are inherited as autosomal dominant characters. In homozygous potency, the gene is 100%, and in heterozygotes it is 20%. Determine the probability of giving birth to sick children in a family where both parents are heterozygous. What does penetrance show?

Ashwani Kumar Gupta
12.01.21, 19:17

Task 8. List the characteristics of dominant inheritance linked to the X chromosome. Give 2 examples of diseases. Describe the scheme when crossing 1) a sick woman (2 options !!!) and a healthy man. 2) a healthy woman and a sick man

Ashwani Kumar Gupta
12.01.21, 19:15

The recessive gene for color blindness is located on the X chromosome. Three daughters with normal vision and two sons with color blindness were born from the marriage of a woman w ith normal vision, whose relatives suffered from color blindness, and a man with normal vision, whose father was color blind. What are the genotypes of parents and offspring? From which parent did the boys get the color blindness gene?

Ashwani Kumar Gupta
12.01.21, 19:11

In humans, the gene that causes one of the forms of hereditary deaf-dumbness is recessive in relation to the gene for normal hearing. a) What offspring can be expected from a marriage of heterozygous parents? b) From the marriage of a deaf-mute woman with a normal man, a deaf-mute child was born. Determine the genotype of the parents

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