A seed's response to gravity is called
A. phototropism.
B. organotropism.
C. chemotropism.
D. thigmotropism.
E. gravitropism.
E. gravitropism.
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Describe two roles viruses have in the open ocean
What will be an ideal response?
Given the following sequence of genes on a chromosome, determine what change in chromosome structure occurred. (the * indicates the centromere)
before A B C D * E F G H after A B C D * E F E F G H A. Terminal deficiency B. Interstitial deficiency C. Inversion D. Gene duplication
The amount of infecting agent received by susceptible individuals is called the infectious
A. exposure. B. number. C. dose. D. level.
If the two alleles for a particular gene are identical the gene pair is
A. homozygous. B. dominant. C. homologous. D. recessive. E. heterozygous.