The human body contains approximately 200 major cell types. They look and function differently from one another because:
A. each has a slightly different genome.
B. each expresses a different set of genes.
C. each expresses the same set of genes,
but in different orders at different times.
D. each has a slightly different genome and
each expresses a different set of genes.
B
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Sometimes, one gene pair will interfere with the expression of a second gene pair in an interaction called
A. incomplete dominance. B. codominance. C. blending inheritance. D. pleiotropy. E. epistasis.
While the plant shown here is one that you didn’t study specifically in lab, you should be able to identify it. Is this the gametophyte or the sporophyte of the plant?
What will be an ideal response?
Which of the following are examples of gonadotropins?
A. prolactin and oxytocin B. follicle-stimulating hormone and oxytocin C. luteinizing hormone and estrogen D. prolactin and estrogen E. follicle-stimulating hormone and luteinizing hormone
Much precipitation in the tropical rain forest is derived from:a
evaporation from lakes. b. evaporation from rivers. c. groundwater. d. transpiration. e. translocation.