DNA damage can occur
A) due to exposure to certain chemicals or radiation.
B) spontaneously.
C) during DNA replication.
D) during transcription.
E) during DNA replication, spontaneously, or due to exposure to certain chemicals or radiation.
Answer: E
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Which of the following would be the best strategy to prevent the spread of yellow fever and dengue fever into the southern United States?
A) mosquito avoidance and eradication B) vaccination C) monitoring bird populations D) tick avoidance
Which is not associated with tularemia?
What will be an ideal response?
Early animal embryos are composed of stem cells, unspecialized cells that are capable of dividing and renewing themselves for long periods
If a stem cell divides by mitosis so that one cell eventually becomes part of the brain and the other cell becomes part of a salivary gland, the cells have A) differentiated. B) diffused. C) taken up genes from surrounding cells. D) lost genes. E) increased their genetic variability.
Phylogeny refers to the
What will be an ideal response?