If a cross results in 90 long-winged flies to 30 vestigial-winged flies, what are the phenotypes of the parents?

What will be an ideal response?


Answer: LL or Ll

Biology & Microbiology

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Which one of the following traits would be found in a typical fern but not a moss?  

A.  homospory B.  tracheids C.  gametophytes with rhizoids D.  antheridia E.  a sporophyte generation

Biology & Microbiology

Assume short hair (L) is dominant to long hair (l), and black hair (B) is dominant to brown (b). If you

found a black, short-haired animal, you could determine its genotype by crossing it to an animal with a genotype of a. LL BB. b. ll BB. c. ll Bb. d. ll bb. e. LL bb.

Biology & Microbiology

DNA polymerase and other repair enzymes ________ the newly synthesized DNA strand during and after the replication process

Fill in the blank(s) with correct word

Biology & Microbiology

A(n) ____ allows two rival males to assess one another's strengths without engaging in a potentially damaging fight.

A. conditioned stimuli B. eusocial response C. instinctive behavior D. kinetic movement E. threat display

Biology & Microbiology