To create a DNA profile from scarce quantities of DNA, such as a fossil or a single hair, the ____________________

technique is necessary to obtain enough DNA for analysis. Fill in the blank(s) with the appropriate word(s).


PCR
polymerase chain reaction

Biology & Microbiology

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The rate of transcription for any one gene in any given cell type is determined by only one transcription factor

A. true B. false

Biology & Microbiology

Which base pairs with adenine in a DNA molecule?

a. adenosine b. cytosine c. thymine d. guanine e. uracil

Biology & Microbiology

What molecule is the body’s main energy source?

a. oxygen b. carbon dioxide c. glucose d. fats e. proteins

Biology & Microbiology

What is the role of amylase?

a. converting starches to maltose b. synthesizing nutrients in the body c. buffering the pH of food d. breaking down fatty acids

Biology & Microbiology