The mutagens 2-aminopurine and 5-bromouracil are examples of

A) alkylating agents.
B) nucleotide base analogs.
C) chemicals reacting with DNA.
D) None of the answers are correct.


Answer: B

Biology & Microbiology

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List two main differences between the processes of transcription and DNA replication

What will be an ideal response?

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The slender, rootlike structures found in nonvascular plants are called ____

a. thalli b. rhizomes c. gametangia d. protonema e. rhizoids

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Which of the traits listed in the map will recombine the most frequently?



a. short aristae length and black body color
b. long aristae and normal wings
c. short aristae length and brown eyes
d. vestigial wings and brown eyes

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Fats are major components of the cell’s

a. membranes. b. cytoplasm. c. proteins. d. ribosomes. e. mitochondria

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