DNA evidence has strongly supported the original groupings proposed by Carl Linnaeus to show relationships between organisms
Indicate whether the statement is true or false
FALSE
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Geneticists construct linkage maps of chromosomes by
A) correlating a phenotype to an observable chromosomal abnormality. B) determining the number of crossovers between genes on different chromosomes. C) calculating the percent recombination between two genes on the same chromosome. D) observing the number of genes on a chromosome.
The bond in table salt (NaCl) is ____
a. polar b. ionic c. covalent d. double e. nonpolar
Native Americans planted crops of corn, squash, and beans. The beans increased the level of nitrogen in the soil. The corn required high levels of nitrogen and provided a support for the beans to climb and receive more sunlight
The large leaves on the squash shaded the ground and limited weed growth. This agricultural method A) caused mass extinctions. B) reduced the ecosystem services. C) is a type of sustainable agriculture. D) increased the number of pests in the fields. E) created wildlife corridors.
Which of the following is generally not a way that antisense RNA might inhibit gene expression?
a. It might prevent translation. b. It might affect RNA processing. c. It might affect stability of the protein product. d. It might prevent transcription. e. All of the above are ways that antisense RNA might inhibit gene expression.