Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 18, Problem 4TY
Summary Introduction
Introduction: Genomic imprinting refers to the process where a particular segment of DNA gets marked and that marked DNA is retained throughout the lifespan of an individual. It helps to distinguish the gene copy that is inherited from the male parent and gene copy that is inherited from the female parent.
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The expression of maternal-effect genes directly leads to
a. the establishment of body axes.
b. segmentation.
c. determination.
d. cell differentiation.
What is the explanation for maternal effect inheritance at the molecularand cellular level?a. The father’s gene is silenced at fertilization.b. During oogenesis, nurse cells transfer gene products to the oocyte.c. The gene products from nurse cells are needed during the veryearly stages of development.d. Both b and c are correct.
In genetic maternal effect, the phenotype of the individual is determined by which of these statements?
A. The sex of the parent who transmits the gene
B. The nuclear genotype of the maternal parent
C. The sex of the individual with only one sex able to express the phenotype
D. Cytoplasmic genes usually located in the mitochondria
E. A combination of environmental factors and the genotype of the individual
Chapter 18 Solutions
Biology
Ch. 18.2 - Prob. 1CCCh. 18.3 - Prob. 1CCCh. 18.3 - Prob. 1CSCh. 18.5 - Prob. 1CSCh. 18.5 - Prob. 1CCCh. 18.6 - Prob. 1EQCh. 18.6 - Prob. 2EQCh. 18.6 - Prob. 3EQCh. 18.6 - Prob. 1CCCh. 18.6 - Prob. 2CC
Ch. 18 - Which of the following is an example of an...Ch. 18 - Prob. 2TYCh. 18 - A female mouse that is Igf2 Igf2 is crossed to a...Ch. 18 - Prob. 4TYCh. 18 - Prob. 5TYCh. 18 - Prob. 6TYCh. 18 - Prob. 7TYCh. 18 - Prob. 8TYCh. 18 - Based on the ideas proposed by Morgan, which of...Ch. 18 - Extranuclear inheritance occurs because a. certain...Ch. 18 - Define epigenetics. Are all epigenetic changes...Ch. 18 - What is a Barr body? How is its structure...Ch. 18 - Core Concept: Information A core concept of...Ch. 18 - Prob. 1COQCh. 18 - Mendel studied seven traits in garden pea plants,...
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