Laboratory Manual for Human Anatomy & Physiology Main Version
4th Edition
ISBN: 9781260159110
Author: Terry Martin
Publisher: Mcgraw-hill Higher Education (us)
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Textbook Question
Chapter 62, Problem 3.2A
Determine the results from a cross of a mother and a father who are both heterozygous for freckles.
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What would be the results in terms of the genotype and phenotype if one parent were heterozygous for the widow’s peak and the other parent were homozygous for a straight hairline?
Frank and Susan both have freckles but they're firstborn son Lawrence does not demonstrate the characteristics. What are the most likely genotype of Frank Susan and Lawrence?
Use the following parents to create a Punnet Square and answer the question. Cross a heterozygous father with a heterozygous mother. (You can use the legend A = normal pigmentation and a = albinism)
What will be the phenotypic ratio of the children?
Chapter 62 Solutions
Laboratory Manual for Human Anatomy & Physiology Main Version
Ch. 62 - The term _________ is used for a person possessing...Ch. 62 - The term _________ is used for the appearance of...Ch. 62 - The _________ is a genetic tool to simulate all...Ch. 62 - Prob. 4PLCh. 62 - Which of the following represents a dominant human...Ch. 62 - An attached earlobe is considered a recessive...Ch. 62 - A diploid chromosome number of 46 and a haploid...Ch. 62 - The possession of freckles is considered a...Ch. 62 - Single penny tossed 20 times and counting heads...Ch. 62 - Determine the results from a cross of a mother who...
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- A woman homozygous dominant for albinism marries a man who is homozygous recessive for albinism. What are the possible genotypes and phenotypes percentages for their offspring?arrow_forwardHemophilia is an X-linked recessive gene. A normal woman who is a carrier for hemophilia marries a man with hemophilia. Draw a punnett square of a cross between these two individuals. What are the chances that this couple will have a daughter with hemophilia?arrow_forwardIn a cross between fair skin, black hair (heterozygous for all these traits) with brown skin, red hair, what is the genotypic ratio of the offspring?arrow_forward
- In the following dihybrid cross: B/b; E/e x B/b; e/e What are the phenotypes of the offspring? 9/16 Black 3/16 brown 4/16 golden 9/16 Brown 3/16 Black 4/16 golden 9/16 Black 3/16 golden 4/16 brown 3/8 Black 1/8 brown 4/8 golden 3/8 golden 4/8 Black 1/8 brownarrow_forwardA man crosses two pink-flowered four o’clock and obtains seeds which grow into plants bearing the following flower colors: 24 red, 53 pink, and 26 white. From these results, indicate how these colors are inherited and show a diagram of the cross.arrow_forwardIn a cross between two, dihybrid, heterozygous individuals, what fraction of the offspring will be dominant for only the (A) gene?arrow_forward
- In currant moths, their Light color is sex-linked and recessive (d) to dark color (D). Question: What are the genotype and the phenotype of the parents if a certain cross yields ½ dark and ½ light colored females and all dark males? Take note that female moths are heterogametic.arrow_forwardIn pea plants, smooth peas is dominant to wrinkled peas. When Mendel crossed true breeding smooth peas with true breeding wrinkled peas, what is the genotype of the offspring and what percentage?arrow_forwardHemophilia is a sex-linked recessive trait. A male hemophiliac and phenotypically normal female have a son with hemophilia. They would like to have one more child. What is the probability of having a child without hemophilia? Explain using a Punnett square. Is it possible for a girl to be born with hemophilia? Explain.arrow_forward
- A wild flower has a dominant allele of red-flower color which is incompletely dominant over the allele of white-flower color. Draw a Punnett square for the cross. Identify the flower color phenotypes and theoretical percentage.arrow_forwardhow could it be possible to have all their children to be polydactyly when mom is not affected?arrow_forwardIn fish, having two fins (F) is dominant over having one fin (f). Complete the punnett square to show a cross between a heterozygous two finned fish with a one finned fish. What are the genotype and phenotype possibilities?arrow_forward
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