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1. Jordan gave blood at the school blood drive and was very upset to learn that they had Type O blood because both of their parents had Type A blood. Draw a Punnett Square to help Jordan understand if they should be concerned or not.

2. Parents have three children - one with Type O blood, one with Type A blood, and one with Type AB blood. Based on their offspring what are the genotypes of the parents?
IAIB and ii
IAi and IAIB
IAi and IBi
ii and IAIA

3. Based on the parent genotypes shown what are the probabilities of each blood phenotype, written as a ratio?

Parent 1 Genotype
IBi
Parent 2 Genotype
IAIA

1 Type A : 1 Type B : 1 Type O : 1 Type AB
1 Type A : 0 Type B : 2 Type O : 1 Type AB
1 Type A : 0 Type B : 0 Type O : 1 Type AB
1 Type A : 0 Type B : 0 Type O : 0 Type AB




4. Hemophilia is a sex linked recessive trait. What is the probability, expressed as percentage, of a couple having an offspring with hemophilia if the male parent has hemophilia and the female parent is a carrier?

0%
25%
50%
100%


5.Hemophilia is a sex linked recessive trait. What is the probability, expressed as percentage, of a couple having a female offspring with hemophilia if the male parent does not have hemophilia and the female parent is a carrier?
0%
25%
50%
100%


6.in fruit flies eye color is a sex linked trait where red eyes are dominant to the white eye phenotype. If a male with red eyes is crossed with a purebred white eye female, what is the ratio of eye color and sex phenotypes for their offspring
1 red eye female : 0 white eye female: 0 red eye male : 1 white eye male
2 red eye female : 1 white eye female: 0 red eye male : 1 white eye male
1 red eye female : 1 white eye female: 1 red eye male : 1 white eye male
0 red eye female : 1 white eye female: 1 red eye male : 0 white eye male

Respuesta :

Answer:

1) If both parents have same blood type i. e. A, so the offspring produce having blood type A or O.

2) If the three children have blood groups such as O, A and AB, the genotype of parents are IAi and IBi.

3) 1 Type A : 1 Type B : 1 Type O : 1 Type AB is the ratio of offspring produce if the parents having blood groups A and B.

4) 25% of offspring will be produced with hemophilia.

5) 0% of female offspring are hemophiliac patient.

Explanation:

Parents have same blood type i. e. A, so the offspring produce having blood type A or O. so the Jordan blood group is O which is gained when both father and mother has blood group A. If a man who has hemophilia disease and a woman who is a carrier of this disease will produce the offspring have: a 25% (one in four) chance of having a son with hemophilia. a 25% chance of having a son with normal blood clotting. a 25% chance of having a daughter who is a carrier.

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