. In a certain strain of turkeys, unfertilized eggs sometimes develop parthenogenetically to produce diploidoffspring. (Females have ZW and males have ZZ sexchromosomes. Assume that WW cells are inviable.)What distribution of sexes would you expect to seeamong the parthenogenetic offspring according toeach of the following models for how parthenogenesisoccurs?a. The eggs develop from oogonial cells that neverundergo meiosis.b. The eggs go all the way through meiosis and thenduplicate their chromosomes to become diploid.c. The eggs go through meiosis I, and the chromatidsseparate to create diploidy.d. The egg goes all the way through meiosis and thenfuses at random with one of its three polar bodies(this scenario assumes the first polar body goesthrough meiosis II).
. In a certain strain of turkeys, unfertilized eggs sometimes develop parthenogenetically to produce diploidoffspring. (Females have ZW and males have ZZ sexchromosomes. Assume that WW cells are inviable.)What distribution of sexes would you expect to seeamong the parthenogenetic offspring according toeach of the following models for how parthenogenesisoccurs?a. The eggs develop from oogonial cells that neverundergo meiosis.b. The eggs go all the way through meiosis and thenduplicate their chromosomes to become diploid.c. The eggs go through meiosis I, and the chromatidsseparate to create diploidy.d. The egg goes all the way through meiosis and thenfuses at random with one of its three polar bodies(this scenario assumes the first polar body goesthrough meiosis II).
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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. In a certain strain of turkeys, unfertilized eggs sometimes develop parthenogenetically to produce diploid
offspring. (Females have ZW and males have ZZ sex
chromosomes. Assume that WW cells are inviable.)
What distribution of sexes would you expect to see
among the parthenogenetic offspring according to
each of the following models for how parthenogenesis
occurs?
a. The eggs develop from oogonial cells that never
undergo meiosis.
b. The eggs go all the way through meiosis and then
duplicate their chromosomes to become diploid.
c. The eggs go through meiosis I, and the chromatids
separate to create diploidy.
d. The egg goes all the way through meiosis and then
fuses at random with one of its three polar bodies
(this scenario assumes the first polar body goes
through meiosis II).
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