In guinea pigs, the allele for short hair is dominant.What genotype would a heterozygous short-haired guinea pig have? _____What genotype would a pure-breeding short-haired guinea pig have? _____What genotype would a long-haired guinea pig have? _____

In guinea pigs, the allele for short hair is dominant.What genotype would a heterozygous short-haired guinea pig have? ___What genotype would a pure-breeding short-haired guinea pig have? _What genotype would a long-haired guinea pig have? ___

Name: In guinea pigs, the allele for short hair is dominant.What genotype wo
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Description: In guinea pigs, the allele for short hair is dominant.What genotype would a heterozygous short-haired guinea pig have? _____What genotype would a pure-breeding short-haired guinea pig have? _____What genotype would a long-haired guinea pig have? ____

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter16: Reproductive Technology, Genetic Testing, And Gene Therapy

Section: Chapter Questions

Problem 9QP: Cystic fibrosis is an autosomal disease that mainly affects the white population, and 1 in 20 whites...

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Skin color in humans is determined by polygenic inheritance, which means the more dominant alleles there are, the darker the skin color will be. A medium-toned skinned woman (AaBb) has a child with another medium-toned skinned man (AaBb). What is the probability of them having a very dark-toned skinned child? (Hint: the genotype is homozygous dominant)
In guinea pigs, the allele for short hair is dominant. What genotype would a heterozygous short haired guinea pig have? What genotype would a purebred short haired guinea pig have? What genotype would a long haired guinea pig have?
In fruit flies, eye color is carried on the X chromosome. The allele for red eyes is dominant over its recessive allele, white eyes. -Cross a heterozygous female to a white-eyed male 1st Question to answer ---- How many genotypes are possible among the offspring? 2nd Question to answer ---- How many phenotypes are possible among the offspring? 3rd Question to answer ---- What is the probability of getting a red-eyed male? 4th Question to answer ---- What is the probability of getting a white-eyed male? 5th Question to answer ---- What is the probability of getting a red-eyed female? 6th Question to answer ---- What is the probability of getting a white-eyed female? 7th Question to answer ---- What is the probability of getting a red-eyed offspring? 8th Question to answer ---- What is the probability of getting a white-eyed offspring?
In human beings, the gene for red‑green colorblindness (r) is sex‑linked and recessive to its allele for normal vision (R), while the gene for freckles (F) is autosomal and dominant over its allele for nonfreckled (f). A nonfreckled, normal‑visioned woman whose father was freckled and colorblind, marries a freckled, colorblind man whose mother was nonfreckled. What is the genotype of the woman's father? What is the probability that the couple's first child will be a non-freckled, normal visioned girl? What is the probability that the first two children born to the couple will be freckled and colorblind girls?
If a father has Marfan syndrome, but the mother does not, and he passes the disease down to only SOME of his offspring, but not all, what would the Punnett square look like? Why is this the father's genotype if only some of his children had Marfan syndrome?
Duchenne's muscular dystrophy is sex-linked and usually affects only males. Victims of the disease become progressively weaker, starting early in life. If your mother's brother (your uncle) had Duchenne's disease, what is the probability that you have received the allele? Show the solution through pedigree analysis.
A blue-eyed man, whose parents were brown-eyed, marries a brown-eyed woman whose father was blue-eyed and whose mother was brown-eyed. This man and woman have a blue-eyed child. What are the genotypes of all the individuals mentioned? (Brown is due to an autosomal dominant allele)
In humans, brown eyes (B) are dominant over blue. A brown eyed man marries a blue-eyed (b) woman and they have three children two of whom are brown-eyed and one of whom is blue-eyed. if blue is recessive, what must the woman’s genotype be?
Can we tell what Dudleys second allele is? Why or why not?
In human beings, the gene for red‑green colorblindness (r) is sex‑linked and recessive to its allele for normal vision (R), while the gene for freckles (F) is autosomal and dominant over its allele for nonfreckled (f). A nonfreckled, normal‑visioned woman whose father was freckled and colorblind, marries a freckled, colorblind man whose mother was nonfreckled. What is the probability that the first child born to the couple will either be a freckled, colorblind boy or a non‑freckled, normal visioned girl or a non-freckled, normal visioned boy? What is the probability that the first four children born to the couple will be freckled and normal visioned girls?
In humans, the genetic disease cystic fibrosis is caused by a recessive allele (a). The normal (healthy) allele is dominant (A). What is the genotype of someone who has cystic fibrosis? What are the two different genotypes that a healthy person could have? If two people were both heterozygous for the cystic fibrosis gene, what fraction of their children would be likely to have this disease? Hint: Draw a Punnett square to figure it out.
You have a true-breeding strain of miniature-winged fruit flies, where this wing trait is recessive to the normal long wings. How would you show whether the miniature wing trait is sex-linked or autosomal?