Refer to the figure above. In their investigation of natural selection on Mc1r alleles (the gene that determines coat color) in Arizona pocket mice, Hoekstra et al. determined the frequency of the D and d alleles in each population. They also determined the frequency of alleles for two neutral mitochondrial DNA genes (genes that do not affect and are not linked to coat color). Why did the researchers include the mitochondrial DNA genes as part of their experimental design?   Allele change for the neutral mitochondrial genes serves as an experimental group and gives information on any general background genetic difference among these populations.   Allele change for the neutral mitochondrial genes serves as a control and determines coat-color differences among these populations.   Allele change for the neutral mitochondrial genes serves as an experimental group and gives information on coat-color differences among these populations.   Allele change for the neutral mitochondrial genes serves as a control and gives information on any general background genetic difference among these populations.

Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter14: Chromosomes And Human Inheritance
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Refer to the figure above. In their investigation of natural selection on Mc1r alleles (the gene that determines coat color) in Arizona pocket mice, Hoekstra et al. determined the frequency of the D and d alleles in each population. They also determined the frequency of alleles for two neutral mitochondrial DNA genes (genes that do not affect and are not linked to coat color). Why did the researchers include the mitochondrial DNA genes as part of their experimental design?

 
  1. Allele change for the neutral mitochondrial genes serves as an experimental group and gives information on any general background genetic difference among these populations.

     
  2. Allele change for the neutral mitochondrial genes serves as a control and determines coat-color differences among these populations.

     
  3. Allele change for the neutral mitochondrial genes serves as an experimental group and gives information on coat-color differences among these populations.

     
  4. Allele change for the neutral mitochondrial genes serves as a control and gives information on any general background genetic difference among these populations.

ARIZONA, USA
|Хmas
Skm
Tule
lava
West
Mid
East
O Nel
SONORA, MEXICO
Substrate color.
Coat color.
Хmas
Tule
West
Mid
East
O'Neil
Transcribed Image Text:ARIZONA, USA |Хmas Skm Tule lava West Mid East O Nel SONORA, MEXICO Substrate color. Coat color. Хmas Tule West Mid East O'Neil
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