Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 11.3, Problem 5C
Summary Introduction
To explain: The way in which variegation of X-linked genes related to the mechanism responsible for sex chromosome dosage compensation in humans and other mammals.
Introduction: The genes present on the X-chromosome are known as X-linked genes. X-linked genes in mammals have unique inheritance pattern. In females, the X-linked genes have the homozygous or the heterozygous pattern and in males, the X-linked genes have the hemizygous pattern.
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Chapter 11 Solutions
Biology (MindTap Course List)
Ch. 11.1 - Define the terms phenotype, genotype, locus,...Ch. 11.1 - Describe Mendels principles of segregation and...Ch. 11.1 - Distinguish among monohybrid, dihybrid, and test...Ch. 11.1 - Explain Mendels principles of segregation and...Ch. 11.1 - What is the maximum number of different alleles...Ch. 11.1 - Can Mendels principle of segregation be...Ch. 11.1 - Prob. 3CCh. 11.2 - PREDICT Use the rules of probability to answer the...Ch. 11.2 - In answering the previous question, did you use...Ch. 11.3 - Define linkage and relate it to specific events in...
Ch. 11.3 - Show how data from a two-point test cross can be...Ch. 11.3 - Discuss the genetic determination of sex and the...Ch. 11.3 - What ratio of genotypes to phenotypes is observed...Ch. 11.3 - Prob. 2CCh. 11.3 - CONNECT Two loci exhibit 5% recombination between...Ch. 11.3 - Which chromosome determines the male sex in humans...Ch. 11.3 - Prob. 5CCh. 11.4 - Explain some of the ways genes may interact to...Ch. 11.4 - Distinguish among incomplete dominance,...Ch. 11.4 - Prob. 11LOCh. 11.4 - Prob. 1CCh. 11.4 - What is the difference between multiple alleles...Ch. 11.4 - Prob. 3CCh. 11.4 - Prob. 4CCh. 11 - One of the autosomal loci controlling eye color in...Ch. 11 - The F1 flies described in question 1 were mated...Ch. 11 - The type of cross described in question 2 is (a)...Ch. 11 - Individuals of genotype AaBb were crossed with...Ch. 11 - Assume that the ratio of females to males is 1:1....Ch. 11 - Redgreen color blindness is an X-linked recessive...Ch. 11 - When two long-winged flies were mated, the...Ch. 11 - The long hair of Persian cats is recessive to the...Ch. 11 - Mr. and Mrs. Smith are concerned because their own...Ch. 11 - A walnut comb rooster is mated to three hens. Hen...Ch. 11 - Individuals of genotype AaBb were mated to...Ch. 11 - Genes A and B are 6 map units apart, and A and C...Ch. 11 - VISUALIZE Sketch a series of diagrams showing each...Ch. 11 - Can you always ascertain an organisms genotype for...Ch. 11 - CONNECT Compare the mechanisms of genetic...Ch. 11 - EVOLUTION LINK Darwins theory of evolution by...Ch. 11 - INTERPRET DATA Using the graph in Figure 11-20,...
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- Discuss the genetic determination of sex and the inheritance of X-linked genes in mammals.arrow_forwardQ7: In mammais the yeliow hair colour B and the brown hair colour are sex-linked characters. If these two genes combine in an organism it will show co-dominance and will give an orange colour. What is the result of F1 if a yellow male is crossed with a brown female?arrow_forwardHow would mutations that completely ablate the function of the androgen receptor impact the phenotypic development of humans with XY chromosomes? Patients would appear phenotypically female Patients would appear phenotypically male with underdeveloped secondary sex characteristics Patients would appear phenotypically male, but cannot produce sperm Patients would express both male and female secondary sex characteristics.arrow_forward
- please complete all partsarrow_forwardDescribe the molecular process of X-chromosome inactivation.This description should include the three phases of inactivationand the role of the Xic. Explain what happens to the X chromosomes during embryogenesis, in adult somatic cells, and duringoogenesis.arrow_forwardPlease assist ASAP,a like is guaranteed!arrow_forward
- please answer all partsarrow_forwardplease see attachment for questionarrow_forward4. In fruit flies, opaque wing color is due to an X-linked dominant version of a gene. A female with opaque wings mates with a male with opaque wings. Based on this information, which of the following statements is accurate and can be stated with 100% confidence iregarding their offspring? A) female offspring have a 50% chance of having opaque wings B) males are guaranteed to have a 100% chance of having opaque wings C) female offspring cannot have opaque wings D) males are guaranteed to have a 50% chance of having opaque wings E) none of the above statements are completely accurate due to inadequate information providedarrow_forward
- In fruit flies, eye color is an X-linked trait. Red eyes (XB) are dominant to maroon eyes (Xb). A male with red eyes mates with a female with maroon eyes. What will be the eye color of the flies in the F1 generation? A) Males: Maroon, Females: Red B) Males: Maroon, Females: Maroon C) Males: Red, Females: Maroon D) Males: Red, Females: Red E) Males: Maroon, Females: Red or Maroonarrow_forward6). A diploid cell has 1 pair of acrocentric chromosomes (Chromosome 1) and 1 pair of submetacentric chromosomes (Chromosome 2). • ⚫ Gene X is on Chromosome 1. Gene Y is on the short arm of Chromosome 2 and Gene Z is on the long arm of Chromosome 2. The maternal chromosomes have the X, y, z alleles, whereas the paternal chromosomes have the x, Y, Z alleles. Draw these chromosomes, labeling ALL alleles.arrow_forwardActivity 11 Study this figure which indicates the normal and abnormal chromosomes then answer the following Questions Normal Male karyotype Normal Fema karyotype 》 3 品研明 10 11 12 13 14 15 17 18 88 19 20 Down Syndrom Edwards Syndrom Turner Syndrom 文自真丸 21 11 12 11 12 13 14 15 16 18 13 17 14 17 18 131 19 20 21 22 19 20 21 Xo 1. Compare the number of chromosomes in the Down syndrome with the nor- mal karyotypes explain the difference between them. 2. Which of the karyotyes contains 3 sexual chromosomes? 3. Depending on the karyotyes, how can a patient with Edwards syndrome, Turner syndrome and Down Syndrome be diagnosed? 4. Describe the symptoms of the Down Syndrome, Edwards syndrome andTurn- er syndrome トarrow_forward
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