Matching: For the following questions, answer \'\'DNA\'\', \'\'RNA\'\', \'\'Both
ID: 36700 • Letter: M
Question
Matching: For the following questions, answer ''DNA'', ''RNA'', ''Both'' or ''Neither.'' (2 pts ea.) 19. _______________This molecule is a chain of nucleotides each of which are composed of a pentose sugar, a nitrogenous base, and a phosphate group. 20. _______________This molecule is synthesized using nucleotides containing adenine, guanine, cytosine, and uracil. 21. _______________This molecule is made of nucleotides joined by phosphodiester bonds that connect the 2' OH to the 5' phosphate. 22. You are using bacteriophages to map the genome of a new bacteria species and find the locations of three toxin-production genes (R, Y, and G). You grow phages in a strain of the bacteria that produces all three toxins (R+, Y+, G+), isolate the phage, and then infect a second bacterial strain that cannot produce any of the toxins (R-, Y-, G-). The recipient bacteria are then grown on colorimetric media (media that changes color in response to toxin presence) to see which toxin genes are transferred together by the phage. The data are as follows: a.. Which gene is in the middle? (3 points) b. Which two genes are closest to one another? (3 points) 23. How many of each of the following does this double-stranded DNA sequence hare?Explanation / Answer
19. DNA
20. RNA
21. Both
22. a) y gene
b) R and G
23. A. 4
B. 22
C. 5
D. 10