13. In Griffith\' bacteria resulted in s 1928 experiment demonstrating bacterial
ID: 210129 • Letter: 1
Question
13. In Griffith' bacteria resulted in s 1928 experiment demonstrating bacterial transformation, injection of live mice, injection of live R bacteria resulted in resulted in _ mice: cell components and live R bacteria a. b. e. d. e. live; dead; live dead; live; live dead; dead; dead dead; live; dead dead; dead; live origin(s) of 14. In the E. colil circular chromosome, DNA replication proceeds from replication? a. no b. one c. two d. several e. many 15. How many replication forks depart from an origin of replication? a. b. One Two c. Four of the e. None of the above 16. The complementary DNA sequence of 5' AATTCGCTTA 3' is: a. 5'AATTCGCTTA 3' c. 5'TAAGCGAATT 3' d. 5' TAACGCTTAA 3' e. 3' TAAGCGAATT 5' 17. During DNA synthesis, the leading strand is synthesizeds in th..... irecti the lagging strand is synthesized in th... direction. a. 3'to 5; 5' to 3 b. 3'to 5'; 3' to 5 c. 5'to 3; 5' to 3' d. 5'to 3; 3' to 5Explanation / Answer
Ans 13 : d) dead; live ; dead
The S strain bacteria have a mucous polysacchardide coat which killed the mice. The heat killed S strain transferred something into the R strain , that enabled it to produce the polysaccharide coat , which made it virulent.
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