Which step in gene mapping can occur even more rapidly by PCR?
A. Target DNA removed from cells and isolated
B. Cloning host treated with calcium chloride and receives plasmid
C. Target DNA and plasmid treated with the same restriction endonuclease
D. Desired protein is produced by cloning host
E. Gene is amplified by multiplication of cloning host
Answer: E
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What type of diseases require biosafety level (BSL) 4 procedures and facilities when working with samples that may be infected?
A) highly infectious diseases B) diseases with high mortality C) diseases for which no treatment or vaccine exist D) highly infectious diseases with high mortality for which no treatment or vaccine exist
__________ is a diagnostic tool that reveals missing
or extra chromosomes and some structural changes in an individual’s chromosomes. Fill in the blank(s) with the appropriate word(s).
Sperm may be viable for up to ____ days within the female reproductive tract
Fill in the blank(s) with the appropriate word(s).
A single PR protein is composed of four identical polypeptide chains that act together to bind DNA. What is the highest level of protein structure that the PR proteins have?
A) primary B) secondary C) tertiary D) quaternary