All of the following involve molecular biology techniques except

A. ligating DNA fragments together.
B. creation of Okazaki fragments.
C. using restriction enzymes to cut specific sequences of DNA.
D. using a DNA polymerase to copy DNA via PCR.


Answer: B

Biology & Microbiology

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What is the difference between a gene that is derepressed and one that is induced? 

A.  A gene that is derepressed is turned on because a repressor protein is not bound without its cofactor. By comparison, a gene that is induced is turned on because an inducer molecule prevents binding of the repressor. B.  Genes that are derepressed are turned on because an inducer molecule is present. By comparison, a gene that is induced is turned on because a repressor protein is bound to the operator. C.  There is no difference between a gene that is derepressed and one that is induced. D.  A derepressed gene is turned off and an induced gene is activated to be expressed.

Biology & Microbiology

In comparing the typical life cycles of plants and animals, a stage found in plants but not in animals is a

A) gamete. B) zygote. C) multicellular diploid. D) multicellular haploid

Biology & Microbiology

Regulation of integrin-mediated adhesion can regulate cell movement.

a. true b. false

Biology & Microbiology

Diploid cell formed by the union of two gametes; the product of fertilization.

What will be an ideal response?

Biology & Microbiology