What is the type of bond between two strands of DNA?
A. A ionic bond
B. A covalent bond
C. A peptide bond
D. A hydrogen bond
Answer: D
Biology & Microbiology
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Verotoxin can cause
A) hemorrhagic diarrhea. B) liver failure. C) brain damage. D) hemorrhagic diarrhea, liver failure, and brain damage.
Biology & Microbiology
Which of the following has not contributed to the evolutionary success of arthropods?
a. jointed appendages b. water vascular system c. well-developed sense organs d. hard exoskeleton e. compound eyes
Biology & Microbiology
The butterfly-shaped center of the spinal cord (the gray matter) is made up of
a. dendrites. b. neuronal cell bodies. c. interneurons. d. neuroglial cells. e. all of these.
Biology & Microbiology
In a human zygote, where did most of the cytoplasm come from?
A) spermatogonia B) oocyte C) polar bodies D) sperm
Biology & Microbiology