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Chapter 13: Q. 8 (page 343)

Which of the following codes describes position 12 on the long arm of chromosome 13?

a. 13p12

b. 13q12

c. 12p13

d. 12q13

Short Answer

Expert verified

The correct answer is B.

Step by step solution

01

Step. 1 Introduction

A particular genetic location on a chromosome is based on a combination of numbers and letters. The chromosome is characterised with the first number or alphabet being used to identify the location of a gene. The chromosomal arm is perhaps the second half within the location for the gene. Lastly, the gene's location on the p or q arm.

02

Step. 2 Explanation for correct answer

The position of genes on a chromosome is indicated by numbers put just after p or q arm of its chromosome. A gene's location 12 is on the q arm, which seems to be the long arm.

03

Step. 3 Explanation for incorrect answer

Option a. A gene's location 12 cannot be on the p arm since that is the short arm.

Option c. No, 12p13 cannot be possible for a chromosome.

Option d. No, 12q13 on a chromosome will not be feasible.

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Most popular questions from this chapter

If the allele encoding polydactyly (six fingers) is

dominant why do most people have five fingers?

a. Genetic elements suppress the polydactyl gene.

b. Polydactyly is embryonic lethal.

c. The sixth finger is removed at birth.

d. The polydactyl allele is very rare in the human

population.

Abnormalities in the number of X chromosomes tends to have milder phenotypic effects than the same abnormalities in autosomes because of _______

a. deletions

b. nonhomologous recombination

c. synapsis

d. X inactivation

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

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

a. more uniformity

b. more variety

c. larger yields

d. smaller yields

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

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