Suppose that mitosis were used to produce the gametes. What unique problems would be encountered? Make a prediction about the future of humans as a species
What will be an ideal response?
First, the chromosome number would double each generation because mitosis produces diploid cells. Second, there would be a lack of diversity in the resulting cells. Constantly changing genotypes would result in the end of the species.
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A chemical reaction that has a positive ?G is best described as _____
A) endergonic B) entropic C) enthalpic D) spontaneous E) exergonic
Which of the following treatments would enhance the level of the Pfr form of phytochrome?
A) exposure to far-red light B) exposure to red light C) a long dark period D) inhibition of protein synthesis E) synthesis of phosphorylating enzymes
Neuston is a term relating to small organisms of the:
a. intertidal zone. b. benthic zone. c. ocean surface. d. abyssal zone. e. aphotic zone.
While ice skating, you fall down and bruise your coccyx. The next day, after hearing about your mishap, your friends bring you a variety of gag gifts. Which of these would actually be useful?
a. helmet b. elbow pads c. donut pillow d. eyepatch