Which of these statements is true?
a. Environment can readily alter some
genotypes.
b. Genotype is manifested in phenotype.
c. Genetic variation is easier seen than
phenotypic variation.
d. Variation dies with individuals.
e. Phenotype is seen physically in the
genotype.
B
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Which of the following represents the correct order of evolution of requirements for complex multicellularity in animals?
A. adhesion, cell signaling, gap junctions, bulk transport B. adhesion, gap junctions, cell signaling, bulk transport C. gap junctions, cell signaling, adhesion, bulk transport D. bulk transport, adhesion, gap junctions, cell signaling
Currently, the most effective method of birth control is:
a. spermicide. b. an IUD. c. injectable contraceptives. d. oral contraceptives. e. a condom.
Which is NOT true about the metabolome and metabolomics?
a. The metabolome is the complete set of an organism’s metabolic intermediates. b. The metabolome shows the enzymatic pathways of an organism. c. Metabolomics has been used to characterize the human skin microbiome. d. Metabolomics was used to reveal the presence of fungi in the human gut microbiome.
In most prokaryotes, DNA replication proceeds
a. without an RNA primer. b. 3? to 5?. c. using only a single strand as a template. d. bidirectionally.