Scs elements are examples of
a. histones.
b. hypersensitive sites.
c. LCRs.
d. insulators.
e. nonhistones.
Ans: d
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Answer questions 72-76 using the five groups listed below:a
halophiles b. cyanobacteria c. thermophiles d. proteobacteria e. methanogens D 72. These bacteria live in temperatures that are not usually conducive to life. M 73. These produce CH4. D 74. These bacteria can live in water of very high salt concentration. M 75. These can form heterocysts, valuable in nitrogen fixation. M 76. These are the most diverse monophyletic group of bacteria.
In DNA replication, primase is responsible for:
A. removal of a terminal nucleotide in a polynucleotide chain. B. connecting two fragments of DNA together. C. cutting DNA at a site?specific sequence. D. producing Okazaki fragments. E. synthesizing an RNA primer for DNA synthesis.
The type of cleavage seen in deuterostomes is called ________ cleavage.
Fill in the blank(s) with the appropriate word(s).
Most plasmids used in biotechnology contain a selectable marker such as an antibiotic-resistance (AmpR) gene.
Answer the following statement true (T) or false (F)