Current classification of prokaryotes is based on
A. morphology of flagella.
B. sequencing of proteins, DNA, and RNA.
C. occurrence of transverse binary fission.
D. type of colony formation.
E. ability to stain the cell wall with Gram stain.
B. sequencing of proteins, DNA, and RNA.
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The purpose of the distasteful odor emitted from the stinkhorn fern is to
a. attract flies. b. discourage predators. c. mimic another fungus. d. prevent plants from growing nearby.
The type of DNA repair that corrects errors due to oxidative damage by replacing one to five nucleotides is
A) mismatch repair. B) base excision repair. C) roto-rooter repair. D) photoreactivation.
The electrons that are passed to NADP+ at the end of the electron transfer chain were obtained from ____
a. water b. CO2 c. glucose d. sunlight e. ATP
A patient at a fertility clinic has been diagnosed with "luteal phase defect" (LPD). Her progesterone levels are low and her cycles are short. What step of reproduction are these symptoms disrupting?
A. Implantation B. Follicle development C. Fertilization of the egg D. Ovulation