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. A man with a blood type AB is married to a woman with blood type A. They have natural children and one adopted child. These are the children with their blood type: Baltazar has blood type A, Melchor has blood type AB and Melchor has blood type O.
a. Who was adopted?
b. What genetic problem is this? (monohybrid, dihybrid or multiple allele)
c. Show the Punnett square.
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- Albinism causes the skin, hair, or eyes to have little or no color. It is also associated with vision problems. Albinism results from an allele a that is recessive to the allele for normal melanin production. Maya has normal skin color, but her sister has albinism. Maya’s mother has albinism, and her father has normal skin color. a)What are the genotypes of Maya, her sister, her mother, and her father. b)If Maya’s parents have another child, what is the probability that this child will have albinism? Show the Punnett square you use to help in solving. c)If Maya marries a man with albinism, what is the probability that their first child will have albinism? Show the Punnett square you use to help in solving.Ben, Marie, and Korra are siblings. Ben is blood type O, Anna is blood type B, and Kora is type A. What could be the possible genotype of their parents? a. |A |A and |B b. |A |A and |B |B c. |B and |A d. |A and |B |BBoth of Ruth's parents have a round face, a dominant trait. Ruth, however, was born with a square face. What does Ruth's phenotype imply about her parents' genes? a. Ruth's parents are both heterozygous when it comes to their facial shape. b. When it comes to facial shape, Ruth's parents gave her one dominant gene and one recessive gene. c. Ruth's parents are both homozygous when it comes to their facial shape. d. Ruth's sister also has a square face.
- Having dimples (D) is dominant over not having dimples (d). A dimpled woman (whose father had no dimples and whose mother did have dimples) marries a man whose mother had no dimples, whose father had no dimples, and whose grandparents on his father’s side did have dimples! a)What are the genotypes of the man and woman? b) Show the cross. c)How many different genotypes are possible among the offspring? d)How many different phenotypes are possible among the offspring? e)What is the probability of getting DD offspring? f) What is the probability of getting dd offspring? g) What is the probability of getting dimpled offspring? h) What is the probability of getting offspring with no dimples? i)What is the probability of getting homozygous offspring?Red-green colour blindness is a deficiency of colour vision so that a person affected by it cannot tell the difference between red and green. This is an X-linked recessive condition. Which statement is correct? a) The allele is written as X^r, and an affected female is heterozygous. b) The allele is written as X^r; an affected male is X^rY and a heterozygous female is X^RX^r c)The allele is written as X^r and a male with genotype X^RY is affected d) The allele is written as X^R; a normal male is X^RY and a homozygous recessive female is X^rX^r.A particular person is said to be a carrier of a genetic trait. What does this tell you about their phenotype? (a) They physically show the trait. (b) They physically show the trait more than a noncarrier would show the trait.(c) They are almost normal but show an intermediate phenotype for the trait. (d) They are completely normal and do not physically show the trait.
- In sheep, coat color is influenced by two genes. Gene A influences pigment production, while gene B produces black or brown pigment. If two heterozygous white sheep resulted in 12 white sheep, 3 black sheep, and 1 brown sheep, which genotype(s) of the white sheep explain this data? A) The white sheep could be A-B- or aaB-. B) The white sheep could be A_B_ or aabb. C) The white sheep could be A_B_ or A_bb. D) The white sheep must all be aabb. E) The white sheep must all be A_B_.A man with blood type A and a woman of blood type B have a baby girl of blood type O. The man sues his wife for divorce, on the grounds that it is not possible for the baby to be theirs (since the blood type is not A, B. or AB). Evaluate the lawsuit on the basis of genetics (A, B alleles are co-dominant over the recessive O allele). IA = A allele IB = B allele iO = O alleleFruit flies are very useful model organisms that have been used to study genetics. One mutant recessive trait in fruit flies is called "eyeless" because it causes flies to have no eyes. Cross an eyeless fly with a homozygous normal fly. a. Draw the Punnett square. b. What is the genotyoe ratio of the offspring? c. What is the phenotype ratio of the offspring? d. What genetic problem is this? (monohybrid, dihybrid or multiple allele)