Cloning of human cells for the purpose of treating a patient is referred to as
A) embryo splitting.
B) pluripotency.
C) somatic cell nuclear transfer.
D) medicinal cloning.
E) therapeutic cloning.
E
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If the tight junctions in the intestine were disrupted _____
A. intestinal cells could not attach to the extracellular matrix. B. intestinal cells could not attach to integral membrane proteins. C. small molecules would not be exchanged between neighboring intestinal cells. D. bacteria could move from the intestines to the bloodstream causing an infection. E. small molecules would not be able to move into cells lining the intestine.
This karyotype shows that the individual:
1.is male
2.is female
3.has 21 pairs of autosomes and 2 pairs of sex chromosomes
4.has 23 pairs of autosomes
The cellular structure indicated by the arrow in the accompanying figure is responsible for:a
replication. b. protein synthesis. c. cellular respiration. d. digestion of unused organelles. e. lipid and fatty acid metabolism.
Some animals allow their body temperature to conform to the environment. What is the old term for these animals, and what is the newer preferred term?
A. Isotherms; poikilotherms B. Heterotherms; homeotherms C. Poikilotherms; ectotherms D. Homeotherms; endotherms E. Endotherms; homeostats