mt2keyver2

# mt2keyver2 - B ISI0l M idterm2 Key ( Vtrsrbn a ) 1. A...

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BISI0l Midterm 2Key (Vtrsrbn a) 1. A genetics student was studying two recessive phenotypes in flies; fat tongue (t) and evil eye (e) linked to chromosome 3. After crossing one wild type parent with a fat tongue, evil-eyed parent, she got normal looking F1 progeny. When she crossed the Fl to a tester, she obtained 5000 progeny in the following ratios: 1700 wild type; l70O fat tongue/evil-eyed; 800 fat tongue and 800 evil-eyed. Believing that 1600 non-parent looking progeny were due to rare recombination events between the two traits, she proposed a null hypothesis that the traits were nol linked and tested the hypothesis with a.f analysis on the F2 data. Based on the student's hypothesis, what ratio would she expect to see in 5000 F2 flies? (5 pts.) A. 9:3:3:l @ l:t:t:l gan-4:- tLSoe("Wr.+d) C. 3:l D. 2:l E. l:l Which of the following values was determined by the I analysis on the F2 data? (see formula on the last page) (5 pts.) @ 648 B. 486 c 324 0@'r 0"ir=i")"* WY. tS'ryo)z = b4r D. t62 Using the table of probabilities on the last page, indicate the range of P values for the I .ialue you calculated. (see table on last page) (5 pts.) r-'-. \y 0.001 - 0.oo0l B. 0.01 - 0.001 c. 0.10 - 0.05 D. 0.30 - 0.20 E. 0.95 -

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C. Promoters for RNAP II contain regions of highly conserved RNA sequence. 6 Numerous transcription factors prepare the eukaryotic promoter for RNAPII complex \-/ formation. (fl
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## mt2keyver2 - B ISI0l M idterm2 Key ( Vtrsrbn a ) 1. A...

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