What does the chi-square test tell us about the linkage of two genes?

What will be an ideal response?


We can use the chi-square test to test the hypothesis that two genes are not linked. A chi-square table gives you the statistical significance of the deviation of the observed number of recombinants in a testcross from the expected number of recombinants if the genes are not linked. If the P value obtained is less than 0.05, the observed number is significantly below the expected, and the null hypothesis is rejected.

Biology & Microbiology

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If you placed a red blood cell in a hypotonic solution, you would predict that its volume would ____ while the solute concentration in its cytoplasm would ____.

A. increase, increase B. increase, decrease C. decrease, increase D. decrease, decrease E. decrease, not change

Biology & Microbiology

One of the two main angiosperm clades, the ____ has about 200,000 species. All members of this group have pollen

grains with three grooves, and most have two cotyledons and net-veined leaves.

a. eudicots b. laurels c. monocots d. water lilies e. magnoliids

Biology & Microbiology

Natural selection that shifts the adaptation of an entire populations is

a. stabilizing selection. b. directional selection. c. disruptive selection. d. artificial selection. e. sexual selection.

Biology & Microbiology

The antibody class which is involved in fighting parasites is

A) IgA. B) IgD. C) IgE. D) IgG. E) IgM.

Biology & Microbiology