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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

Assume a pericentric inversion occurred in one of two homologs prior to meiosis. The other homolog remains normal. During meiosis, what structure鈥攊f any鈥攚ould these homologs assume in order to pair accurately along their lengths?

a. V formation

b. cruciform

c. loop

d. pairing would not be possible

Figure 13.3 In a test cross for two characteristics such as the one shown here, can the predicted frequency of recombinant offspring be 60 percent? Why or why not?

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

The first suggestion that chromosomes may physically exchange segments came from the microscopic identification of ________.

a. synapsis

b. sister chromatids

c. chiasmata

d. alleles

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

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