Mitochondria contain their own genes. Study of these genes has revealed that mitochondria can be inherited from both the mother and the father when sperm and egg cells unite.
a. true
b. false
b. false
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If a 1n egg is fertilized by a n-l sperm, the
resulting zygote will have
a. the chromosome number 2n?1. b. a chromosome without its homologue. c. a condition called monosomy. d. a genetic disorder. e. all of these conditions
Orgasm involves
A. spasms of the muscles of the reproductive organs. B. spasms of the general muscles of the body. C. increase in heart rate. D. All of the above are correct.
Scientists use ____ sampling to estimate the population size of mobile animals.
A. mark–recapture B. random C. plot D. base E. homogeneous
Which of the following is the most unique aspect of archaeon cell envelopes?
A. The cell walls contain a modified type of peptidoglycan. B. The plasma membrane is composed of phospholipids. C. Archaeon capsules can be composed of protein or polysaccharide. D. Some archaeons have lipid monolayers in their plasma membrane.