Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 13, Problem 15CTQ
Using diagrams, illustrate how nondisjunction can result in an aneuploid zygote.
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Chapter 13 Solutions
Biology 2e
Ch. 13 - Figure 13.3 In a test cross for two...Ch. 13 - Figure 13.4 Which of the following statements is...Ch. 13 - Figure 13.6 Which of the following statements...Ch. 13 - X-linked recessive traits in humans (or in...Ch. 13 - The first suggestion that chromosomes may...Ch. 13 - Which recombination frequency corresponds to...Ch. 13 - Which recombination frequency corresponds to...Ch. 13 - Which of the following codes describes position 12...Ch. 13 - In agriculture, polyploid crops (like coffee,...Ch. 13 - Assume a pericentric inversion occurred in one of...
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- In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).arrow_forwardDiscuss the following sets of terms: a. trisomy and triploidy b. aneuploidy and polyploidyarrow_forwardVISUALIZE Draw a simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome.arrow_forward
- give the types of gamets produced by a plant with round seeds and yellow cotyledons and gentype RrYyarrow_forwardDiscuss the following sets of terms: a) trisomy and triploidy, b) aneuploidy and polyploidy.arrow_forwardUse the diagram below to figure out how each monosomy or trisomy can a) Normal X chromosome segregation b) Nondisjunction in meiosis I c) Nondisjunction in meiosis II Diploid cell at start of meiosis Nondisjunction First meiotic division Second meiotic division Nondisjunction 00 00 00 PEARS N develop. Benjamin XCummixes х х х х XX XX о о XX 1. A color-blind man married a normal woman. Their daughter, who was phenotypically normal, married a normal man and the couple produced three children, a normal boy, a color-blind boy, and a color-blind girl with Turner syndrome. Explain the origin of the color-blind girl with Turner syndrome.arrow_forward
- Assume that the autotriploid cell in has 3 n = 30chromosomes. For each of the gametes produced by this cell, give thechromosome number of the zygote that would result if the gamete fusedwith a normal haploid gamete.arrow_forwardDifferentiate between x and n as they apply tochromosome number in euploids and aneuploids.arrow_forwardMeiosis is characterized by the pairing of homologouschromosomes during prophase I. In many species, an elaboratestructure called the synaptonemal complex forms betweenhomologues. During this pairing, homologues may exchangechromosomal material at sites called chiasmata. In meiosis I, thehomologues separate from each other, reducing the chromosomenumber to the haploid state (thus the reductive division). It isfollowed by a second division without replication, during whichsister chromatids become separated. The result of meiosis I and IIis four haploid cells. If sister chromatids separated at the first division, would meiosis still work?arrow_forward
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