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The inducer of the lactose operon in E. coli is a. CAP. b. cAMP. c. allolactose.

ID: 258622 • Letter: T

Question

The inducer of the lactose operon in E. coli is a. CAP.

b. cAMP.
c. allolactose. d. glucose.
e. galactose.

Codons refer to triplet base sequences in the

mRNA.

nontemplate strand of DNA.

template strand of DNA.

tRNA.

rRNA.

Which of the following terms is not related to histones? a. chromosomes b. proteins c. prokaryotes d. nucleosomes e. solenoid

Two chains of DNA must run in ________ direction(s) and must be ________ in order to bond with each other.

the same; uncomplementary opposite; uncomplementary parallel; uncomplementary parallel; complementary antiparallel; complementary

Explanation / Answer

a. Inducer is allolactose. As when allolactose is available lac operon is induced.

Codons are triplet base sequences in the mRNA. it is similar to the sequence on the non-template strand.

Histone are not found in prokaryotes so prokaryotes is not related to histones.

They must run in antiparallel direction so they are complimentary to each other.