One advantage of cross-pollination in plants would be to provide:
A. different forms of double fertilization
B. more healthy seeds
C. better embryos for the seed to grow
D. a better chance for germination on the stigma
E. more exchange of genetic information
E. more exchange of genetic information
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What are the three components of the insect body plan?
a. Head, cephalothorax and walking legs b. Cephalothorax, walking legs and telson c. Head, thorax and tail d. Head, thorax and abdomen e. Chelicerae, abdomen and telson
Given that an individual is a compound heterozygote at the CFTR locus, the gene that causes cystic fibrosis, what can be inferred?
A) If the individual has children, all the children will have cystic fibrosis. B) At least one of the individual's parents had cystic fibrosis. C) The individual is a carrier for cystic fibrosis, but does not have the disease. D) A drug that effectively treats one allele may not treat the other.
In humans, assume that the allele for brown eyes is dominant and the allele for blue eyes is recessive. If two browneyed
individuals have a child with blue eyes, that means:a. both parents are homozygous for brown eyes. b. both parents are heterozygous for eye color. c. there is a 1/4 chance that their second child will have brown eyes. d. there is a 1/2 chance that their second child will have blue eyes. e. there is a 3/4 chance that their second child will have blue eyes
Which type of media can be used to determine if a bacteria is motile?
A. chocolate agar B. MacConkey C. SIM D. Thayer-Martin media E. enriched media