A couple decides to have children. Both have the same genotype: they are fully heterozygous at...

A couple decides to have children. Both have the same genotype: they are fully heterozygous at the following loci: albino (Aa), MN blood group (L^M L^N), and Rh factor (Rh+/Rh-). The Rh+ allele is dominant to the Rh- allele. Assuming that the genes encoding these traits are located on different autosomes, determine the excepted genotypic and phenotypic of their ratios in their offspring.

Expert Solution

In albino a person having a compleate loss of pigment melanin in the skin, hair and the eyes. Albinism causes due to inheritance of recessive gene alleles aa. therefore cross between heterozygous cross between Aa * Aa produces 1/4 AA, 1/2 Aa, 1/4aa individual with genotype aa will have albino. therefore phenotypic ratio will be 3 : 1 and genotypic ratio will be 1:2:1.

In case of MN blood group, is the case of codominance where both M and N alleles are equally dominant. therefore cross between L^M L^N * L^M L^N produces 1/4 L^ML^M, 1/2 L^ML^N, 1/4 L^NL^N, Where individual having genotype with L^ML^N will have MN blood group. Hence, both genotypic and phenotypic ratio will be 1:2:1.

in 3rd case Rh factor, an individual having Rh factor on the surface of blood are Rh + and an individual without Rh factor is Rh-. Therefore, Rh + may recieve both Rh+ and Rh- but, Rh- individual only receive Rh- blood group. hence, expected phenotypic ratio of heterozygous cross will be 3:1 and genotypic ratio will be 1:2:1.

gladiator answered 2 years ago

1. A married couple decides that they will continue to have children until they have 3...

1. A married couple decides that they will continue to have children until they have 3 girls. It is assumed that having a boy or a girl is equally likely. a. What is the probability that the couple has 5 children until they have 3 girls? (specify the variable and what distribution is being used) b. How many children does this couple expect to have until they have girls? (specify the variable and what distribution is being used)

In the notation A = normal, a = albino, the genotype AA describes A) heterozygous...

In the notation A = normal, a = albino, the genotype AA describes A) heterozygous B) homozygous dominant C) homozygous recessive

1). If a couple has two children, what is the probability that they are both girls...

1). If a couple has two children, what is the probability that they are both girls assuming that the older one is a girl? 2). Suppose that we have two dice, the first one being a regular die, and the second weighted so that half the time it rolls a 1, and half the time it rolls a 2 (it never rolls anything else). If we choose one of these dice at random, and roll a 1, what’s the probability...

Pink is the phenotype from the expression of a heterozygous genotype in flowers that exhibit incomplete...

Pink is the phenotype from the expression of a heterozygous genotype in flowers that exhibit incomplete dominance. Red and white flowers result from the two homozygous genotypes. 10. What would be the probability of getting pink flowered plants from a cross between two pink flowered plants? 11. Is there any chance of red or white flowers from a cross of two pink flowered plants? Explain your answer. 12. Explain how recombination during meiosis contributes to genetic diversity in offspring. 13....

A family decides to have children until it has three male children. Assuming ?(????) = ?(??????)...

A family decides to have children until it has three male children. Assuming ?(????) = ?(??????) = 0.5, a. what is the probability that the family has ? female children? b. Calculate ?(?) and ?(?).

A couple plans to have children until they get a girl, but they agree they will...

A couple plans to have children until they get a girl, but they agree they will not have more than three children, even if all are boys. Assume that the probability of having a girl is 52.00 %. a) Create a probability model for the number of children they'll have. b) Find the expected number of children. c) Find the expected number of boys they'll have.

A couple wants to have 2 boys and 2 girls. They will continue to have children...

A couple wants to have 2 boys and 2 girls. They will continue to have children until they have reached the goal.  Assuming that the probability that they have 54% chance to have a boy and 46% chance to have a girl in every pregnancy. No twin or more are possible.  Assuming that their goal is possible and has been fulfilled today! Create at least four hypotheses based on the data file provided! 1) Use a different test for each...

At a particular locus, the homozygous genotype is lethal. We observe a cross between two heterozygous...

At a particular locus, the homozygous genotype is lethal. We observe a cross between two heterozygous parents. Which of the following will not be true for their offspring: a) All offspring will look the same b) The genotype and phenotype ratios will be the same c) All offspring will be heterozygous d) Half of the offspring will die e) Genotype and phenotype ratio will be 1:2:1 what ratio would this offspring be?

1. Another couple is only willing to have 5 children, but they also want to have...

1. Another couple is only willing to have 5 children, but they also want to have a boy and a girl, and they too will stop as soon as they have one of each. What is the expted number of children they will have? 2. Out of a bag with 10 red marbles, 7 blue marbles and 16 orange marbles, what is the expected number of times a person will randomly draw out either a red or blue marble on...

a couple intends to have three children. assume (for some reason) that having a boy or...

a couple intends to have three children. assume (for some reason) that having a boy or a girl are not equally likely events, and that p(boy)=.4 and p(girl)=.6 for each delivery also assume the births are independent of each other (a. what is the sample space of this experiment? Use a tree diagram and label the branches with their corresponding probabilities. Then make a table including all outcomes from the experiment with their associated probabilities. (b. Find the probability that...

Question