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Mitochondrial Inheritance Quiz

12 Questions

3 Views

3.4 Stars

Mitochondrial Inheritance Quiz

Created by

@PerfectBowenite

Questions and Answers

Which haplogroup has the most genetic diversity?

Haplogroup L

When did some individuals with haplogroup L3 migrate out of Africa?

About 75,000 years ago

Which haplogroup populated mostly South Asia?

Haplogroup M

Which haplogroup populated mostly Eurasia?

<p>Haplogroup N</p> Signup and view all the answers

What is the result of reduced electron transfer efficiency in haplogroups M and N?

<p>Less efficient/more heat generation of mitochondria</p> Signup and view all the answers

When did haplogroups M and N divergents populate the Americas?

<p>About 15,000 years ago</p> Signup and view all the answers

What is the primary method by which variants in mitochondrial DNA develop?

<p>DNA replication/repair errors and subsequent selection</p> Signup and view all the answers

How does the mutation rate in mitochondrial DNA compare between coding and non-coding regions?

<p>Slower in coding regions than non-coding (hypervariable regions)</p> Signup and view all the answers

What is the primary reason why mitochondrial DNA does not have reductive division (meiosis/recombination)?

<p>It is haploid and does not undergo reductive division</p> Signup and view all the answers

What were early methods of mitochondrial molecular phylogeny based on?

<p>Restriction length polymorphism/gel electrophoresis to name the haplotypes</p> Signup and view all the answers

When did Eve's mitochondria appear, giving rise to the L0 haplogroup in Africa?

<p>About 200,000 years ago</p> Signup and view all the answers

What is the primary reason why mitochondrial DNA has a circular structure?

<p>Evolved from phagocytosis of alpha proteobacteria</p> Signup and view all the answers

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