What is encoded by the transfer region of the F plasmid?
What will be an ideal response?
Ans: The F plasmid is capable of initiating bacterial conjugation, in which the F plasmid itself is copied and transferred from a donor cell to a recipient cell. The transfer region of the F plasmid genome contains approximately 40 genes that are required for the transfer of DNA. One gene encodes the protein pilin, which polymerizes into a pilus, a hollow cylinder that connects the donor and recipient cells. Other genes in this region encode enzymes involved in the nicking and unwinding of DNA.
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Which vertebrate body system is most closely associated functionally with respiration?
a. urinary b. digestive c. endocrine d. circulatory e. integumentary
The scientific field of ______________ uses computers to store, analyze, visualize, and access
genomic sequence data. Fill in the blank(s) with the appropriate word(s).
Which type of protist is responsible for malaria in humans, parasitic to both humans and mosquitoes?
a. ciliates b. actinopods c. dinoflagellates d. apicomplexans e. foraminiferans
Prokaryotic chromosomes do not have telomeres because they _____________.
a) do not go through cell division b) do not have DNA replication c) are circular d) use RNA instead of DNA as their genetic material