All of the following choices are advantages of sexual reproduction except ________
a. perpetuation of the largest proportion of an individual's genetic information
b. production of diverse types of offspring
c. increasing variation by recombination of existing traits
d. rapid dissemination of adaptive traits through the population
a
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The hydrogen ion gradient across the thylakoid membrane is required to ________________
What will be an ideal response?
The stain that requires heating the slide for better penetration of stain into the mycobacterial cell wall is known as the:
a. Kinyoun's. b. Ziehl-Neelsen. c. fluorochrome. d. carbolfuchsin.
Which of the following statements is true about a phylogeny, as represented by a phylogenetic tree?
I) Descendant groups (branches) from the same node do not necessarily share any derived characters. II) A monophyletic group can be properly based on convergent features. III) The ancestral group often has all the synapomorphies of the descendant species. A) only I B) only II C) only III D) None. Not I, II, or III.
Protein filaments with a diameter of 4-7 nm that play a role in cell movement and shape change are called ________.
A. microtubules B. microfilaments C. intermediate filaments D. mycelia