__________________ is the greater relative survival and reproduction of individuals in a population that have favorable heritable traits, leading to evolutionary change
A. Natural selection
B. Mutation
C. Genetic drift
D. Gene flow
A. Natural selection
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To which of the following groups does the
organism in the above figure belong? a. diplomonads, parabasalids, trypanosomes, and euglenoids b. ciliates, dinoflagellates, and apicomplexans c. water molds, diatoms, and brown algae d. chlorophyte and charophyte algae e. amoebas and slime molds
Which of the following correctly represents the probability that a detrimental autosomal recessive
allele will actually be expressed in a population if the occurrence of the allele is such that 1 in 50 individuals are heterozygous? a. 1/50 ? 1/50 = 1/2500, with 1/4 of their children homozygous recessive = 1/2500 ? 1/4 = 1/10,000. b. 1/50 ? 1/4 that are homozygous recessive = 1/200. c. 1/50 ? 2 children (on average) ? 1/4 that are homozygous recessive = 1/100. d. 1/50 ? 2 parents ? 4 children ? 1/4 that are homozygous recessive = 1/25. e. Cannot be determined from the information given.
Antibodies are ________
A) composed of four fatty acid chains B) a type of lymphocyte C) proteins with short carbohydrates attached D) proteins consisting of four polypeptide chains
Coacervates can
A. absorb chemicals from the environment. B. separate their internal contents from their surroundings. C. be synthesized in the lab. D. All of the above are correct.