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9. Neither Mendelian genetics nor genetic linkage can accurately explain all forms f chromosome behavior.

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter9: Patterns Of Inheritance

Section: Chapter Questions

Problem 12SQ

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Concept explainers

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.

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19. Neither Mendelian genetics nor genetic linkage can accurately explain all forms
of chromosome behavior.
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False

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Which recombination frequency corresponds to independent assortment and the absence of linkage? 0 0.25 0.50 0.75
3. With modern molecular methods it is now possibleto examine variants in DNA sequence from a verysmall amount of tissue like a hair follicle or even asingle sperm. (See the Fast Forward Box Mappingthe Crossovers that Generate the Chromosomes ofIndividual Human Sperm.) You can consider thesevariants to be alleles of a particular site on a chromosome (a locus; loci in plural). For example,AAAAAAA, AAACAAA, AAAGAAA, andAAATAAA at the same location (call it B) on homologous autosomes in different sperm might becalled alleles 1, 2, 3, and 4 of locus B (B1, B2, etc.).John’s genotype for two loci B and D is B1B3andD1D3. John’s father was B1B2and D1D4, while hismother was B3B3and D2D3.a. What is (are) the genotype(s) of the parental typesperm John could produce?b. What is (are) the genotype(s) of the recombinanttype sperm John could produce?c. In a sample of 100 sperm, 51 of John’s sperm werefound to be B1and D1, while the remaining 49 spermwere B3D3. Can you conclude whether the B and Dloci…
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