For a given locus, in a population with two alternative alleles, the allele frequencies p + q = ________
A) 1.0
B) p × q
C) 100
D) 0
Answer: A) 1.0
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In a normal fruit fly, the second thoracic segment has wings and the third thoracic segment has halteres (small knobbed structures that act as a balance and guidance system). A mutant fruit fly is identified in which the third thoracic segment produces wings instead of halteres. This abnormal fly has a mutation in which of the following?
A. a maternal effect gene B. a gap gene C. a homeotic gene D. a segment polarity gene
Which protein complex directs DNA bending into loops that contact RNA polymerase and transcription factors bound at the core promoter or with protein complexes bound to proximal promoter elements?
What will be an ideal response?
How were insertion sequences (IS elements) first discovered?
What will be an ideal response?
Allergy medicines relieve symptoms by dampening the effects of_________.
Fill in the blank(s) with the appropriate word(s).