A molecule is
a. a combination of two or more atoms.
b. a mixture of atoms.
c. electrically charged.
d. a carrier of one or more extra neutrons.
e. none of these
A
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Which of the following biotechnology applications of site-specific recombination deletes DNA from the target?
A. gene activation by removing a transcriptional stop site B. gene insertion C. allele replacement D. gene activation by adding an enhancer sequence E. gene repression by disrupting transcription with an insertion.
Which of the following is a predicted consequence of kinetochores not achieving the correct level of tension from the mitotic spindle?
A) Sister chromatids will no longer be held together at their centromeres. B) All chromosomes will migrate to one pole instead of to two opposite poles. C) Mitosis will not progress beyond metaphase. D) No prediction can be made.
Describe the processes of vasodilation and vasoconstriction
What will be an ideal response?
Which of the following is most directly associated
with a stimulus? a. integrators b. receptors c. effectors d. central nervous system e. all of these