Clonal libraries used to determine the sequence of a microbial genome using the whole-genome shotgun approach are typically generated by ________.
A. cloning small gene-sized DNA fragments produced by breaking chromosomal DNA with ultrasonic waves
B. cloning random PCR fragments amplified from genomic DNA
C. cloning large DNA fragments produced by breaking chromosomal DNA with ultrasonic waves
D. cloning large DNA fragments produced by restriction endonuclease cleavage
Answer: A
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Each nucleosome contains:
A. four proteins: H2A, H2B, H3, and H4 B. a histone octamer composed of two copies of each of the following proteins: H1, H2, H3, and H4 C. a histone octamer composed of two copies of each of the following proteins: H2A, H2B, H3, and H4 D. four proteins: SMC1, SMC2, SMC3, and SMC4 E. a mixture of histone and SMC proteins.
Where in the body does the circadian clock act to control of vascular disease?
a. Systems under positive feedback control. b. Systems under negative feedback control. c. Systems that develop early in life. d. Systems that develop later in life. e. It is not known.
With __________, offspring inherit the same number
and kinds of genes from one parent. Fill in the blank(s) with the appropriate word(s).
The three components of the female reproductive system that are required for successful reproduction are the eggs,
____________________, and ____________________. Fill in the blank(s) with the appropriate word(s).