Which terms accurately reflect the nature of replication of the chromosome in E. coli?
A) multirepliconic and telomeric
B) bidirectional and multirepliconic
C) unidirectional and reciprocal
D) bidirectional and fixed point of initiation
E) unidirectional and fixed point of initiation
Answer: D
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Scientists recently identified a gene that is linked with ovarian cancer. Variations in the KRAS
gene occur in one-quarter of women with ovarian cancer. Thus, KRAS is considered a __________.
a. type of stem cell b. genetic marker c. vector d. DNA profile
In an unchanging environment, a well-adapted population is likely to experience no natural selection
of any kind.
Indicate whether the statement is true or false.Four of the five answers listed below are endocrine glands. Select the exception
a. thymus gland b. salivary gland c. parathyroid gland d. thyroid gland e. pituitary gland
Ig stands for __________.
Fill in the blank(s) with the appropriate word(s).