A technique used to identify species by matching up sequence differences in a standard region of the genome is called

A. mutation counting.
B. genome sequencing.
C. DNA barcoding.
D. nucleotide matching.
E. PCR


Answer: C

Biology & Microbiology

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If we think of the DNA double helix as a twisted ladder, what makes up the rungs or steps of the ladder?  

A.  phosphate groups only B.  alternating phosphate groups and sugars C.  sugars only D.  purines and pyrimidines E.  phosphate groups and bases

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IgE is found in extremely small amounts in serum

Indicate whether the statement is true or false.

Biology & Microbiology

When a cell expands in diameter, volume increases by the ____ of the diameter, and surface area increases by the____

of the diameter.

a. square; square b. square; cube c. cube; square d. cube; cube e. square root; square root

Biology & Microbiology

__ is/are generally accepted as a secondary sex characteristic

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology