The compounds involved in phototropism are
a. phototropins.
b. gibberellins.
c. cytokinens.
d. phytoestrogens.
e. a combination of more than one of these
A
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At pH 7, a peptide with the sequence G-M-G-V-S-D-P-D-A has a net charge of:
A. -3 B. -2 C. -1 D. +1 E. +2
Which of the following statements is TRUE about chromosomes?
a. Chromosomes are always spread out as chromatin. b. Chromosomes are always condensed. c. Homologous chromosomes have the same genes on them but can have different alleles. d. Homologous chromosomes have the same genes on them and always have the same alleles of those genes. e. Chromosomes always consist of two sister chromatids.
Refer to the accompanying figure. Which beetle phenotype has the highest probability of survival?
a. 1
b. 2
c. 3
d. 4
e. There is no difference in survival rate.
In exocytosis
A) protein vesicles import large molecules into a cell. B) lipid vesicles move along the cytoskeleton and export large molecules out of a cell. C) protein vesicles move along the cytoskeleton and export large molecules out of a cell. D) lipid vesicles import large molecules into a cell