DNA molecules that contain pieces of DNA from two different sources are defined as
A. biotechnology.
B. gene cloning.
C. recombinant DNA.
D. genetic engineering.
C
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Heritability is measured as:
A. the slope of the line that relates the average phenotype of parents to the average phenotype of their offspring. B. the slope of the line that relates the average phenotype of parents to the average environment in which they live. C. the slope of the line that relates individual phenotype to environmental conditions. D. the degree of skewness of the distribution of offspring phenotypes. E. the difference between the norms of reaction of two phenotypes across the same range of environmental conditions.
Which of the following plants are capable of
secondary growth?
a. ferns b. horsetails c. club mosses d. conifers e. liverworts
Which statement about the structure of neurons is true?
a. Dendrites carry impulses away from the cell body. b. Axons may form branches known as collaterals. c. Nerve impulses travel down the axon toward the cell body. d. Dendrites are often myelinated for faster conduction. e. Synapses occur between the cell body and its axon.
When the basidiomycetes undergo sexual reproduction, the product is always a(n)
A. dikaryotic hypha. B. gamete. C. mycelium. D. ascus.