Gene disruption, in which large fragments of DNA are inserted in the middle of a gene’s coding sequence, is a type of
a. site-directed mutagenesis.
b. cassette mutagenesis.
c. expression vector.
d. operon fusion.
Answer: B
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The inner membrane system of chloroplasts consists of flattened sacs called ________ that form stacks called ________.
Fill in the blank(s) with the appropriate word(s).
Based on the theory of endosymbiosis, which of the following would you expect to find in a chloroplast?
A. DNA B. cellulose C. a mitochondrion D. silica E. a nucleus
Positive correlations have been found between ________
A) telomere lengths and longevity among individuals within populations B) telomere lengths and longevity across many species of mammals C) telomere lengths and longevity among individuals within populations and across many species of mammals D) neither telomere lengths and longevity among individuals within populations nor telomere lengths and longevity across many species of mammals
__________ conversion occurs when a bacterium carrying viral genes takes on new, atypical
characteristics. a. Transducing b. Lysogenic c. Prophage d. Lytic e. Reverse