Question

How have mitochondrial DNA sequences been used? a. to identify differences between closely related people b. to roughly determine how many mitochondria are in one cell c. to derive family ancestries d. mitochondrial DNA sequences have not been used in forensics e. none of the above

Name: Problem 14, Chapter 23: Biotechnology
Uploaded: 2022-01-31T16:01:48-08:00
Duration: 1 min 21 s
Channel: Ramesh Singh
Description: How have mitochondrial DNA sequences been used? a. to identify differences between closely related people b. to roughly determine how many mitochondria are in one cell c. to derive family ancestries d. mitochondrial DNA sequences have not been used in forensics e. none of the above

   How have mitochondrial DNA sequences been used?
a. to identify differences between closely related people
b. to roughly determine how many mitochondria are in one cell
c. to derive family ancestries
d. mitochondrial DNA sequences have not been used in forensics
e. none of the above

Biotechnology

David P. Clark … 2nd Edition

Chapter 23, Problem 14

Instant Answer

Solved by Expert Ramesh Singh

01/31/2022

Step 1

Unlike nuclear DNA, which is inherited from both parents, mtDNA is only inherited from the mother. a. to identify differences between closely related people: This is correct. Mitochondrial DNA sequences have been used to compare individuals and determine their Show more…

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How have mitochondrial DNA sequences been used? a. to identify differences between closely related people b. to roughly determine how many mitochondria are in one cell c. to derive family ancestries d. mitochondrial DNA sequences have not been used in forensics e. none of the above

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Key Concepts

Phylogenetic and Forensic Applications

The stability and distinctive inheritance pattern of mtDNA make it valuable in both phylogenetic studies and forensic science. It is often used to derive family ancestries and to identify individuals in forensic investigations, especially when other DNA sources are compromised or insufficient.

Maternal Inheritance

mtDNA is inherited solely from the mother, making it particularly useful for studying maternal ancestry and determining evolutionary relationships. This unique pattern of inheritance allows researchers to trace family lineages and understand the genetic history of populations.

Mitochondrial DNA Characteristics

Mitochondrial DNA (mtDNA) is a small, circular molecule found in the mitochondria that is present in many copies per cell. Due to its relatively high mutation rate and lack of recombination, it serves as a powerful tool for tracing genetic lineages over many generations.

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