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Chapter 13: Q. 7 (page 343)

Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment?

a. 0

b. 0.25

c. 0.50

d. 0.75

Short Answer

Expert verified

The Correct answer is A.

Step by step solution

01

Step. 1 Introduction

Independent Assortment illustrates how various genes individually segregate of each other throughout the development of genetic material.

The strong relationship between alleles or any other Nucleotide sequences on the very same chromosomes is referred to as linkage.

02

Step. 2 Explanation for correct answer.

A complete linkage is a state in which the alleles are relatively near to one other, resulting in perfect allele recombination.

03

Step. 3 Explanation for incorrect answer.

Option b. A recombination frequency of 0.25 means that 25% of the offspring are recombinants, with the remaining 75% being parental types.

Option c. The 0.50 percentage recombination frequency indicates that 50% are recombinant and 50% are parental.

Option d. A 0.75 frequency is not feasible since each parent contributes 50% of their genes. In every situation, the progeny will have 50 percent or more paternal type.

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Most popular questions from this chapter

Which of the following statements is true? a. Recombination of the body color and red/cinnabar eye alleles will occur more frequently than recombination of the alleles for wing length and aristae length. b. Recombination of the body color and aristae length alleles will occur more frequently than recombination of red/brown eye alleles and the aristae length alleles. c. Recombination of the gray/black body color and long/short aristae alleles will not occur. d. Recombination of the red/brown eye and long/short aristae alleles will occur more frequently than recombination of the alleles for wing length and body color.

Explain how the Chromosomal Theory of Inheritance helped to advance our understanding of genetics.

Figure 13.6Which of the following statements about nondisjunction is true?

a. Nondisjunction only results in gametes with n+1or n-1chromosomes.

b. Nondisjunction occurring during meiosis II results in 50percent normal gametes.

c. Nondisjunction during meiosis I results in 50percent normal gametes.

d. Nondisjunction always results in four different kinds of gametes

In agriculture, polyploid crops (like coffee, strawberries,or bananas) tend to produce ____.

a. more uniformity

b. more variety

c. larger yields

d. smaller yields

By definition, a pericentric inversion includes the ________.

a. centromere

b. chiasma

c. telomere

d. synapse
See all solutions

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