Which of these statements is true of meiosis?
(A) Meiosis plays a role in growth, reproduction, and repair
(B) Meiosis produces gametes that contain one complete haploid set of chromosomes
(C) Meiosis occurs after DNA replication
(D) Meiosis, followed by cytokinesis, produces two genetically identical daughter cells
Ans: (B) Meiosis produces gametes that contain one complete haploid set of chromosomes
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The very first genome sequenced was from:
A. a eukaryotic organism. B. a bacterium. C. an archaeal cell. D. yeast. E. a virus.
Its defoliant effects were first noticed when it leaked from gas lights; later found to be produced by plants themselves.
Choose the letter of the best: A. abscisic acid B. auxin C. ethylene D. cytokinin E. gibberellin
Which of the following does not influence the strength of a stimulus?
1.frequency of action potentials 2.how many axons are responding 3.size of the action potentials 4.which axons are responding
The mathematical model developed by Wayne Getz predicts the existence of asexual or sexual reproduction within a
population. Which statement best describes this model? a. The offspring produced by sexual reproduction would be most successful in a stable environment. b. Clones produced by asexual reproduction would succeed in an unstable environment. c. Both reproductive strategies would coexist under conditions of moderate change. d. One assumption is that the offspring of sexual reproduction will use resources in the same way. e. One assumption is that the offspring of asexual reproduction will use resources differently