A DNA microarray is ____

a. used for gel electrophoresis
b. used identifying fragments of genes using a labeled probe
c. linked to self-replicating vectors to create recombinant DNA molecules
d. a series of long mRNA sequences placed on a solid support and has several uses
e. a series of short nucleotide sequences placed on a solid support and has several uses


e

Biology & Microbiology

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Diagram the basic steps of a stretch reflex arc.

What will be an ideal response?

Biology & Microbiology

The phagocyte that kills about 20 bacteria before dying is the ____

a. eosinophils b. macrophage c. neutrophils d. dendritic cell e. basophils

Biology & Microbiology

Behaviors that appear to be genetically programmed are called

A. voluntary. B. fixed action patterns. C. ultimate. D. reflexes. E. innate.

Biology & Microbiology

When a monocot such as corn germinates, the immature leaves are covered by a ________ while the radicle is covered by the ________.

A. coleoptile; coleorhiza B. plumule; coleorhiza C. hypocotyle; primary root D. hypocotyle; epicotyl

Biology & Microbiology