What is the role of primers in the PCR techniques?

A) To separate strands of double-stranded DNA
B) To add free nucleotides to the newly formed DNA molecule
C) To allow single strands of DNA to bind together
D) To target specific areas of DNA


D

Biology & Microbiology

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The boreal forest could best be described as what type of forest?

a. deciduous b. thorn c. evergreen coniferous d. broad-leafed e. shrub

Biology & Microbiology

Which of the following does not influence the strength of a stimulus?

1.frequency of action potentials 2.how many axons are responding 3.size of the action potentials 4.which axons are responding

Biology & Microbiology

The major way in which therapeutic cloning and reproductive cloning differ is that

a. reproductive cloning cannot in reality be accomplished, while therapeutic cloning can. b. therapeutic cloning seeks to provide cells and tissues for use in treatment of human diseases. d. reproductive cloning can only be done in plants, therapeutic cloning only in animals. e. reproductive cloning uses adult stem cells, therapeutic cloning uses embryonic stem cells. f. There is no difference: both processes seek to obtain a genetically pure individual.

Biology & Microbiology

Which of the following is found in eukaryotic cells but not in the cells of bacteria?

A. nucleus B. mitochondria C. endoplasmic reticulum D. lysosomes E. All of the choices are correct.

Biology & Microbiology