S
Sargis D
Guest
55. Which of the following have been produced by selective breeding?
A. cat breeds
B. dog breeds
C. horse breeds
D. all of the above
56. What is the ultimate source of genetic variability?
A. radiation
B. inbreeding
C. hybridization
D. mutations
57. One function of gel electrophoresis is to
A. separate DNA fragments
B. extract DNA
C. recombine DNA
D. cut DNA
58.the process of making changes in the DNA code of a living organism is called
A. inbreeding
B. selective breeding
C. hybridization
D. genetic engineering
59. on an electrophoresis gel, band B is closer to the positive end of the gel than is band A. Which of the following statements is true?
A. the DNA in B is more positively charged than the DNA in A
B. Band A and band B contain the same DNA fragments
C. The DNA fragments in band B were smaller than those in band A.
D. Band A moved faster than band B
60. A recombinant plasmid gets inside a bacterial cell by
A. recombining with the cell
B. inducing mutations
C. transformation
D. injecting itself into the sell
A. cat breeds
B. dog breeds
C. horse breeds
D. all of the above
56. What is the ultimate source of genetic variability?
A. radiation
B. inbreeding
C. hybridization
D. mutations
57. One function of gel electrophoresis is to
A. separate DNA fragments
B. extract DNA
C. recombine DNA
D. cut DNA
58.the process of making changes in the DNA code of a living organism is called
A. inbreeding
B. selective breeding
C. hybridization
D. genetic engineering
59. on an electrophoresis gel, band B is closer to the positive end of the gel than is band A. Which of the following statements is true?
A. the DNA in B is more positively charged than the DNA in A
B. Band A and band B contain the same DNA fragments
C. The DNA fragments in band B were smaller than those in band A.
D. Band A moved faster than band B
60. A recombinant plasmid gets inside a bacterial cell by
A. recombining with the cell
B. inducing mutations
C. transformation
D. injecting itself into the sell