P generation Хуwт Ҳуwт F, generation F, generation contalns wild-type females and yellow-bodied, white-eyed, minlature-winged males. Xytw*mt xywm F2 generation Females Males Total Gray body, red eyes, long wings Gray body, red eyes, miniature wings Gray body, white eyes, long wings Gray body, white eyes, minlature wings Yellow body, red eyes, long wings Yellow body, red eyes, miniature wings Yellow body, white eyes, long wings Yellow body, white eyes, miniature wings 439 319 758 208 193 401 11 16 12 178 139 317 365 335 700 Morgan's three-factor crosses involving three x-linked traits in Drosophila. Genes+Traits Three genes that govern body color, eye color, and wing length are all found on the x chromosome of fruit flies. Therefore, the offspring tend to inherit a nonrecombinant pattern of alleles (y+w+m+ or ywm). Figure 6.5 explains how single and double crossovers can create a recombinant pattern of alleles.
P generation Хуwт Ҳуwт F, generation F, generation contalns wild-type females and yellow-bodied, white-eyed, minlature-winged males. Xytw*mt xywm F2 generation Females Males Total Gray body, red eyes, long wings Gray body, red eyes, miniature wings Gray body, white eyes, long wings Gray body, white eyes, minlature wings Yellow body, red eyes, long wings Yellow body, red eyes, miniature wings Yellow body, white eyes, long wings Yellow body, white eyes, miniature wings 439 319 758 208 193 401 11 16 12 178 139 317 365 335 700 Morgan's three-factor crosses involving three x-linked traits in Drosophila. Genes+Traits Three genes that govern body color, eye color, and wing length are all found on the x chromosome of fruit flies. Therefore, the offspring tend to inherit a nonrecombinant pattern of alleles (y+w+m+ or ywm). Figure 6.5 explains how single and double crossovers can create a recombinant pattern of alleles.
Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter43: Animal Behavior
Section: Chapter Questions
Problem 2CT
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In Morgan’s three-factor crosses of Figure shown, he realized that
crossing over was more frequent between the eye color and wing
length genes than between the body color and eye color genes.
Explain how he determined this.
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