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Home Q & A Board Biology-Related Homework Help General Biology
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asabino asabino
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6 years ago
A heterozygous fruit fly with normal wings and a gray body (VvBb) is crossed with homozygous flies with vestigial
  wings and black bodies (vvbb). Out of 800 total F1 progeny, 296 are normal gray, 328 are vestigial black, 99 are normal
  black, and 77 are vestigial gray. What is the best explanation for this result?
  a. The loci for wing length and body color are on different chromosomes.
  b. The loci for wing length and body color are on sex chromosomes.
  c. The loci for wing length and body color are on the same chromosome.
  d. Mendels principle of independent assortment accounts for this.
  e. Mendels principle of segregation accounts for this

Question 2

A heterozygous fruit fly with normal wings and a gray body (VvBb) is crossed with homozygous flies with vestigial
  wings and black bodies (vvbb). If there are 800 F1 progeny, the expected phenotypes would be:
  a. 200 normal gray, 200 normal black, 200 vestigial gray, and 200 vestigial black
  b. 400 normal gray and 400 vestigial black
  c. 800 normal gray
  d. 800 vestigial black
  e. 450 normal gray, 150 normal black, 150 vestigial gray, and 50 vestigial black
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berrytartsberrytarts
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6 years ago
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asabino Author
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#2
6 years ago
I know this sounds cliche, but I was thinking the same thing for each of these. Thanks for confirming Slight Smile
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#3
6 years ago
I'm sure Wink Face Thanks for your honesty
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#4
3 years ago
Thank you for your help
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