Typically, to grow transgenic plants, the vector with the inserted gene is
A. an egg cell.
B. a pollen cell.
C. a pollen cell that is then fused with an egg cell.
D. plant cell that is then cultured to produce a whole plant.
E. all of these techniques are widely used.
D
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The oral contraceptive pill contains ____
a. estrogen only b. estrogen and/or progestin c. estrogen and FSH d. FSH and progestin e. estrogen, progestin, and FSH
Which of the following phrases would most likely be
used in a discussion of homeostasis? a. respond to environmental stimuli b. limited range of variation c. rapid energy turnover d. cycle of elements e. structural and functional units of life
The following is a list of events involved in the activation of a cell by a steroid hormone. Which one of the following answers best represents the order in which the steps occur?
1. cellular response to the hormone 2. activation of a gene 3. formation of a hormone-receptor complex 4. diffusion of the hormone through a target cell membrane 5. production of a protein A) 4, 3, 2, 5, 1 B) 2, 5, 4, 3, 1 C) 5, 3, 4, 1, 2 D) 2, 5, 1, 3, 4 E) 4, 3, 2, 1, 5
Lyme disease is only seen in people living in Lyme, Connecticut.
Answer the following statement true (T) or false (F)