Which of these are spore-producing structures?
A) sporophyte (capsule) of a moss
B) antheridium of a moss or fern
C) archegonium of a moss or fern
D) gametophyte of a moss
Answer: A
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Which of the following is not a characteristic of DNA?
A) complementarity B) composed of nucleotides C) contains ribose D) antiparallel strands E) double-stranded
Plasmids are short sequences of DNA used as primers in PCR
a. True b. False Indicate whether the statement is true or false
Define metabolism
What will be an ideal response?
Lactose induces the transcription of the lactose operon by:
a. binding to the allosteric site of the repressor after being converted to allolactose. b. stimulating lactose metabolism in the cell. c. first being converted to glucose, then binding to the repressor. d. binding to the allosteric site of RNA polymerase. e. inhibiting the activity of CAP.