Question A friend presents to you a rare male calico cat. Which statements are false? This cat is rare because it likely has more than two sex chromosomes A non-disjunction of the sex chromosomes could have occurred in either parent of this cat A non-disjunction event must have occurred in the father of this cat The cat likely suffers from Klinefelter syndrome The cat is both orange and black because these alleles are co-dominant

Question A friend presents to you a rare male calico cat. Which statements are false? This cat is rare because it likely has more than two sex chromosomes A non-disjunction of the sex chromosomes could have occurred in either parent of this cat A non-disjunction event must have occurred in the father of this cat The cat likely suffers from Klinefelter syndrome The cat is both orange and black because these alleles are co-dominant

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 27QP

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Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele?
More Crosses with Pea Plants: The Principle of Independent Assortment Consider the following cross in pea plants, in which smooth pea shape is dominant to wrinkled, and yellow pea color is dominant to green. A plant with smooth yellow peas is crossed to a plant with wrinkled green peas. The offspring produced peas that were all smooth and yellow. What are the genotypes of the parents? What are the genotypes of the offspring?
Analysis of X-Linked Dominant and Recessive Traits Suppose a couple, both phenotypically normal, have two children: one unaffected daughter and one son affected with a genetic disorder. The phenotype ratio is 1:1, making it difficult to determine whether the trait is autosomal or X-linked. With your knowledge of genetics, what are the genotypes of the parents and children in the autosomal case? In the X-linked case?
Meiosis Explains Mendels Results: Genes Are on Chromosomes The following diagram shows a hypothetical diploid cell. The recessive allele for albinism is represented by a, and d represents the recessive allele for deafness. The normal alleles for these conditions are represented by A and D, respectively. a. According to the principle of segregation, what is segregating in this cell? b. According to Mendels principle of independent assortment, what is independently assorting in this cell? c. How many chromatids are in this cell? d. Write the genotype of the individual from whom this cell was taken. e. What is the phenotype of this individual? f. What stage of cell division is represented by this cell (prophase, metaphase, anaphase, or telophase of meiosis I, meiosis II, or mitosis)? g. After meiosis is complete, how many chromatids and chromosomes will be present in one of the four progeny cells?
More Crosses with Pea Plants: The Principle of Independent Assortment Organisms have the following genotypes. What types of gametes will these organisms produce, and in what proportions? a. Aabb b. AABb c. AaBb
Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X chromosome alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an allele on an X chromosome, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X chromosome allele, how many types or gametes can she produce with respect to that allele?
A heterozygous individual has a _______ for a trait being studied. a. pair of identical alleles b. pair of nonidentical alleles c. haploid condition, in genetic terms
More Crosses with Pea Plants: The Principle of Independent Assortment Determine the possible genotypes of the following parents by analyzing the phenotypes of their children. In this case, we will assume that brown eyes (B) is dominant to blue (b) and that right-handedness (R) is dominant to left-handedness (r). a. Parents: brown eyes, right-handed brown eyes, right-handed Offspring: 3/4 brown eyes, right-handed 1/4 blue eyes, right-handed b. Parents: brown eyes, right-handed blue eyes, right-handed Offspring: 6/16 blue eyes, right-handed 2/16 blue eyes, left-handed 6/16 brown eyes, right-handed 2/16 brown eyes, left-handed c. Parents: brown eyes, right-handed blue eyes, left-handed Offspring: 1/4 brown eyes, right-handed 1/4 brown eyes, left-handed 1/4 blue eyes, right-handed 1/4 blue eyes, left-handed
In cats, the genotype AA produces tabby fur color; Aa is also a tabby, and aa is black. Another gene at a different locus is epistatic to the gene for fur color. When present in its dominant W form (WW or Ww), this gene blocks the formation of fur color and all the offspring are white; ww individuals develop normal fur color. What fur colors, and in what proportions, would you expect from the cross AaWw Aa Ww?
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Draw two replicated, un-condensed, homologous chromosomes that have the genes A and E on them. This individual is homozygous recessive for A, and heterozygous for gene E. Be sure to label your chromosomes
no need to explain just need n=to know if it a.b.c and d. 1.) In a species of dog, a mutant gene that causes deafness is found on the Y chromosome. What type of offspring will be produced between a cross of male dog whose father is deaf, and female dog whose father is not deaf? a.) 25% normal female dogs, 25 % deaf female dogs, 25 % normal male dogs, 25 % deaf male dogs b.) 50% normal female dogs, 50 % deaf male dogs c.) 50% deaf female dogs, 50 % deaf male dogs d.) 50% normal female dogs, 25 % deaf male dogs, 25% normal male dogs 2.) Mendel crossed true breeding plants that had yellow pods with true breeding plants that had green pods. Yellow pod colour (Y) is dominant over green pod colour (y). Predict the genotypes and phenotypes of F1 generation. a.) yellow pods with genotype yy b.) yellow pods with genotype Yy c.) green pods with genotype Yy d.) green pods with genotype Yy