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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 18, Problem 12SQ
Textbook Problem
60 views

Mitochondrial DNA sequences are often used to study a relationship between ______ .

  1. a. different species
  2. b. individuals of the same species
  3. c. different taxa
  4. d. evolutionary structures
  5. e. homologous structures

Summary Introduction

Concept introduction: The DNA found in the mitochondrial region of eukaryotic cell is called as mitochondrial DNA. mitochondria are semi-autonomous, containing their own genome, and it gears the replication, protein synthesis., and transcription process of a cell.

Explanation of Solution

Reason for correct answer: Mitochondrial DNA strictly follows maternal inheritance, that is, mitochondrial DNA haplotypes will be similar in all members coming under a family line. Since it is of maternal origin, the characters shared by the closely related species can be studied using the DNA sequence of mitochondrial genome..

Option b. is given as “different species”. Using mitochondrial DNA, relationship between different species can be studied.

Therefore, option b. is the correct answer.

Reasons for incorrect answer:

Option a. is given as “different species”. Species are different groups of organisms coming under the same genus. Therefore, option a. is a wrong answer.

Option c. is given as “different taxa”. Taxa are a group of one or more populations of an organism...

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