Human Biology Custom Edition
11th Edition
ISBN: 9781337631532
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 19, Problem 2RQ
Summary Introduction
To state: The theory of segregation and whether segregation occurs during mitosis and meiosis.
Introduction: Law of segregation was proposed on Mendel’s work on pea plants. Mendel proposed the law of segregation based on the results of monohybrid cross that “two alleles at any locus tend to separate from each other, so they end up in different gametes”.
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Students have asked these similar questions
Describe the Principles of Segregation and Independent Assortment in terms of Genetics.
How do these Principles express during Meiosis?
An individual heterozygous for a reciprocal translocation possesses the following chromosomes:
A B • C D E F G
A B • C D V W X
R S • T U E F G
R S • T U V W X
Q. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis.
Briefly explain what 2n=12 means in terms of mitosis and meiosis.
Chapter 19 Solutions
Human Biology Custom Edition
Ch. 19 - Define the difference between (a) gene and allele,...Ch. 19 - Prob. 2RQCh. 19 - What is probability, and how is it applied in...Ch. 19 - What is independent assortment? Does independent...Ch. 19 - Alleles are ___________. a. alternate forms of a...Ch. 19 - A heterozygote has _____. a. only one of the...Ch. 19 - Prob. 3SQCh. 19 - Offspring of a cross AA aa are ______. a. all AA...Ch. 19 - Prob. 5SQCh. 19 - Prob. 6SQ
Ch. 19 - Which statement best fits the principle of...Ch. 19 - Prob. 8SQCh. 19 - Prob. 9SQCh. 19 - Prob. 10SQCh. 19 - One gene has alleles A and a. Another has alleles...Ch. 19 - Still referring to Problem 1, what will be the...Ch. 19 - Go back to Problem 1, and assume you now study a...Ch. 19 - The young woman shown at right has albinismvery...Ch. 19 - When you decide to breed your Labrador retriever...Ch. 19 - The ABO blood system has been used to settle cases...Ch. 19 - Prob. 7CTCh. 19 - A man is homozygous dominant for ten different...Ch. 19 - Prob. 9CTCh. 19 - Bill and Marie each have flat feet, long...Ch. 19 - You decide to breed a pair of guinea pigs, one...
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- What are the major differences between mitosis and meiosis? Explain this both in terms of the different steps of each event and with regards to the final products of each event. Remember to mention the events which are unique to meiosis and why they are significant.arrow_forwardAn individual has the following reciprocal translocation: I - SKLM CDE CDE H B B H M e. What is the name of the structure formed during meiosis, as the chromosomes attempt to synapse? f. What would be the outcome of alternate segregation? g. What would be the outcome of adjacent-1 segregation? h. What would be the outcome of adjacent-2 segregation?| (NOTE: A-B--C-D-E or A-B-O-C-D-E are acceptable formats for chromosome structure)arrow_forwardYour textbook stated, "The random segregation into daughter nuclei that happens during the first division in meiosis can lead to a variety of possible genetic arrangements." Explain how this is the case; how this is true? Be specific.arrow_forward
- What is independent assortment? Does independent assortment occur during mitosis or during meiosis?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
- Please demonstrate the chromosomal basis of principal of segregation in a cell heterozygote (Aa)arrow_forwardWhich of the following statements about independent assortment and segregation is correct? The law of independent assortment is accounted for by observations of prophase I. The law of segregation requires describing two or more genes relative to one another. The law of segregation is accounted for by anaphase of mitosis. The law of independent assortment requires describing two or more genes relative to one another.arrow_forwardCan I see the full diagram for the mitosis and meiosis drawing? And how to do it? The one posted only shows the first photoarrow_forward
- Explain how the events of meiosis can explain both segregation and independent assortment.arrow_forwardExplain the process of the following: a. The normal segregation of chromosomes during Meiosis 1 and Meiosis 2 in MALE. b. The abnormal segregation of chromosomes during Meiosis 1 and Meiosis 2 in FEMALE.arrow_forwardWhich of the following statements about mitosis and meisois are TRUE? (check all that apply) Mitosis produces genetically identical cells, whereas meiosis produces genetically variable (different) cells. Mitosis consists of a single nuclear division, whereas meiosis consists of two nuclear divisions. DNA replication occurs prior to mitosis and meiosis I. Crossing over occurs in both meiosis I and meiosis II. The number of chromsoomes in newly formed cells is the same as the mother cell in both mitosis and meiosis. 00000arrow_forward
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