In marsupials, X inactivation occurs exclusively to paternally derived chromosomes. Which genes will ALWAYS be expressed in this situation? A. maternal X-linked genes B. paternal X-linked genes C. maternal Y-linked genes D. paternal Y-linked genes

In marsupials, X inactivation occurs exclusively to paternally derived chromosomes. Which genes will ALWAYS be expressed in this situation? A. maternal X-linked genes B. paternal X-linked genes C. maternal Y-linked genes D. paternal Y-linked genes

Name: In marsupials, X inactivation occurs exclusively to paternally derived
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: In marsupials, X inactivation occurs exclusively to paternally derived chromosomes. Which genes will ALWAYS be expressed in this situation?A. maternal X-linked genesB. paternal X-linked genesC. maternal Y-linked genesD. paternal Y-linked genes

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter17: Developmental Genetics

Section: Chapter Questions

Problem 10TYU

See similar textbooks

Similar questions

How does X inactivation contribute to a person’s phenotype? a. It controls the number and kind of genes inherited on an X chromosome. b. It determines which X chromosome is expressed in a male. c. It allows for the expression of either the maternal or the paternal X in different cells. d. It enhances the expression of Y-linked genes in males.
Explain how X-chromosome inactivation may affect thephenotype of female mammals
According to the Lyon hypothesis,a. one of the X chromosomes is converted to a Barr body insomatic cells of female mammals.b. one of the X chromosomes is converted to a Barr body in allcells of female mammals.c. both of the X chromosomes are converted to Barr bodies insomatic cells of female mammals.d. both of the X chromosomes are converted to Barr bodies inall cells of female mammals.
Which of the following statements is FALSE about x chromosome inavtivation in mammals? A. It relies on chromatic remodeling B. It leads to the formation of Barr body. C. It only occurs in males. D. It involves histone modification
Describe the process of X-chromosome inactivation in mammals
In fruit flies, dosage compensation is achieved bya. X-chromosome inactivation.b. doubling the expression of genes on the single X chromosome in the male.c. decreasing the expression of genes on the two X chromosomes by 50% in the female.d. all of the above.
Which of the following findings supports the fact that the presence of the Y-chromosome rather than the lack of a second X-chromosome determines the development of maleness in mammals? a. A human with an X0 genotype (Turner syndrome) is phenotypically female. b. A human with an XXY genotype (Klinefelter syndrome) is phenotypically male. c. A transgenic mouse with two X-chromosomes and the SRY gene from the Y-chromosome develops male sex organs. d. b and c, but not a e. a, b, and c
Why are multiple copies of the X chromosome tolerated? A. Genes on the X chromosome are not expressed during development. B. The extra copies of the X chromosome are inactivated. C. There are no genes on the X chromosome that are detrimental when present in multiple copies D. The X chromosome only encodes sex related genes
Molecular geneticists have performed experiments in which they altered the number of copies of the bicoid gene in flies, affecting the amount of Bicoid protein produced. a. What would be the effect on development of an increased number of copies of the bicoid gene? b. What would be the effect of a decreased number of copies of bicoid? Justify your answers.
Fruit fly segmentation begins during oogenesis and is affected by which maternal genes? (Note answers can be multiple or if not given from the option, provided the proper answer) a. Gap genes b. Oskar genes c. Pair-rule genes d. Gurken genes
X inactivation explains the large color patches in calico cat fur and the smaller patches in tortoiseshell cat fur. In which type of cat do you expect X inactivation occurs earlier in development? Why?
Which of the following statements is FALSE? Inactivation of one of the two X chromosomes in the somatic cells of mammalian females..... a. underlies the Calico phenotype in cats. b. leads to cellular mosaicism in females heterozygous for an X-linked gene. c. affects 75 % of the paternal and 25 % of the maternal X-chromosomes of a mammalian body. d. leads to the formation of a Barr body in female cells' nuclei. e. is the mechanism in mammals to compensate for the higher dosage of X-linked genes in females as compared to males.