A pheromone is a chemical signal secreted into the environment
____________________ Indicate whether the statement is true or false.
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The drug(s) used to treat genital herpes is/are
A. penicillin. B. erythromycin. C. acyclovir. D. famciclovir. E. acyclovir AND famciclovir
Which of the following was proposed by Mendel after working with garden pea plants?
a. The physical observation of a recessive trait means that the organism lacks any dominant versions of that characteristic. b. An organism’s dominant traits disappear in the offspring of a hybridization. c. The physical observation of a dominant trait means that the organism has two recessive versions of that characteristic. d. An organism’s dominant and recessive traits blend to form a codominant allele.
Proteins that regulate gene expression by directly binding to the DNA are known as _____
a. transcription factors b. translation factors c. transposable elements d. methylation e. phosphorylation
Which is not a characteristic of the gymnosperms?
A) Cones B) Seeds C) Pollen D) Flowers