B. Dihybrid Cross. 1. If a woman who is a non-PTC taster (recessive) with a heterozygous hitchhikers thumb has children with a man who is a heterozygous PTC taster with straight thumbs (recessive), what is the probability of them having each of the following types of children? (Fill in the Punnett Square and the blanks). Parents' genotypes X a. How many non-PTC tasters, Hitchhikers thumb b. How many PTC tasters, Hitchhikers thumb c. What is the phenotypic ratio?

B. Dihybrid Cross. 1. If a woman who is a non-PTC taster (recessive) with a heterozygous hitchhikers thumb has children with a man who is a heterozygous PTC taster with straight thumbs (recessive), what is the probability of them having each of the following types of children? (Fill in the Punnett Square and the blanks). Parents' genotypes X a. How many non-PTC tasters, Hitchhikers thumb b. How many PTC tasters, Hitchhikers thumb c. What is the phenotypic ratio?

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter13: Observing Patterns In Inherited Traits

Section: Chapter Questions

Problem 1SQ: A heterozygous individual has a _______ for a trait being studied. a. pair of identical alleles b....

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a. The ability to taste the chemical phenylthiocarbamideis an autosomal dominant phenotype, and the inabilityto taste it is recessive. If a taster woman with a nontasterfather marries a taster man who in a previous marriagehad a nontaster daughter, what is the probability thattheir first child will be(1) A nontaster girl(2) A taster girl(3) A taster boyb. What is the probability that their first two childrenwill be tasters of either sex?
SUBJECT: GENETICS Topic: Probability 1. Consider albinism a trait to occur in a human family. If two parents areheterozygous for such trait, the probability of having a normally pigmented child is 3//4 and having an albino child is ¼. What is the probability that 2 will be normal and 1 will be albino?
Brown eyes are dominant over blue. This is NOTA sex-linked trait. If a blue-eyed colorblind woman marries a normal visioned man who is homozygous for brown eye color, what kind of children might they expect with respect to these two traits? 5. Genotype of woman _Genotype of man What two genotypes are possible in the children? If one of the sons in turn marries a heterozygous brown-eyed, normal visioned woman, not a carrier, what kinds of children might they expect? Genotypes Phenotypes
1. A woman is colorblind. Construct a Punnett square and using versions of the letter “C” determine if she marries a man with normal vision: What are the chances her sons will be colorblind? What are the chances her daughters will be colorblind? What are the chances of having a carrier daughter? 2. Both the husband and wife have normal vision. Their son is colorblind. What can you conclude about the father’s genotype? What about the mother’s genotype? Father: Mother: 3. If a young girl has fragile X syndrome, a recessive trait (f), what is her genotype? What are the possible genotypes of her father and mother? Mother: _________ or __________ Father: _________________ If her brother also developed this condition, which parent (father, mother, or both) contributed a disease allele? Explain your answer as well as constructing Punnett squares to support your answer. 4. Both the mother and father of a hemophiliac son have normal blood clotting. What are the genotypes of the…
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2/7 - <. Hair texture is an incompletely dominant trait in humans. The three phenotypes are curly, wavy and straight. Straight only occurs when both parents have straight hair. Curly hair also tends to follow this pattern. Only two wavy haired parents produce all three phenotypes. Please explain this observation using punnett squares. Curly x Curly straight x straight Wavy x wavy
white b. light black c. medium TA I. X-LINKED OR SEX-LINKED TRAITS A color-blind man marries a woman wit blind. Use aXfor normal vision, and al X for color-blindness, (Remember where sex-linked traits are carried). What is the genotype of the ma al vision, whose father was color- h norm type of the manand woman? Use a Punnett square to show the phenotypes of their progeny 172
Directions: Use the following information to answer the questions below: all are sex-linked recessive disorders. H= normal blood clotting C=Normal Vision h-hemophilia muscular dystrophy M= Normal c= colorblind 1. Write the genotypes for the following individuals: a. female with no family history of hemophilia b. male with hemophilia c. male with muscular dystrophy d. male with normal color vision e. normal color vision female with colorblind father f. male with normal blood clotting g. colorblind male m= 2. Cross a female who is a carrier of the gene for hemophilia with a man who has normal blood clotting. Tell the expected phenotypic ratio of the offspring. 3. Cross a female with normal color vision, but whose father was colorblind, with a man who has colorblindness. Tell the expected phenotypic ratio of the offspring. 4. Cross a woman who does not suffer from muscular dystrophy and has no family history of muscular dystrophy with a man who has the disorder. Tell the expected…
2: Chart v Add-ins Media Links Comment Footer Page Numb Header Screenshot v Cystic fibrosis is a hereditary illness causing respiratory issues and recurrent lung infections. It is a recessive disorder (c). Using the details below, fill in the Punnett square to determine probability of an offspring having cystic fibrosis. Mother Father -does not -does not have have cystic cystic fibrosis fibrosis genotype Cc -genotype Cc Mother Father Probability of offspring having cystic fibrosis: ada)
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SQ5 Two people are considering having children, but they each have family members that died of a rare recessive autosomal disorder. For the man, it was his brother and for the women, it was her mother’s sister (her aunt). What is the probability they will have an affected child?
Č. What are the chances of a child with a round shape? out öf or 5. Patrick met Patti at the dance. Both of them are heterozygous for their pink body color, which is dominant over a yellow body color. Create a Punnett square to show the possibilities that would result if Patrick and Patti had children. HINT: Read question #3! A. List the possible genotypes and phenotypes for their children. B. What are the chances of a child with a pink body? out of or C. What are the chances of a child with a yellow body? out of % or