DNA replication is studied in a newly discovered bacterium. It takes 30 min for the bacterium to complete a round of replication at 37oC. A Meselson-Stahl-type experiment was performed. The bacteria were grown for several generations in 14N-medium and then switched to 15N-medium. The DNA molecules were then analyzed.

If the mechanism of DNA replication in this bacterium were dispersive, what results would be found when the double-stranded DNA was analyzed in a CsCl gradient after two generations in 15N-medium?

TLS Online TPP Program

#Question id: 31386

#Unit 4. Cell Communication and Cell Signaling

Which of the following ion uptake into the presynaptic terminal causes release of the neurotransmitter?

TLS Online TPP Program

#Question id: 3644

#Unit 3. Fundamental Processes

In replication: soon after synthesis, the DNA fragments are joined to make one continuous piece of DNA by the enzyme:

TLS Online TPP Program

#Question id: 1950

#Unit 4. Cell Communication and Cell Signaling

The inflammatory infiltrate in autoimmune thyroiditis comprises mostly:

TLS Online TPP Program

#Question id: 5300

#Unit 11. Evolution and Behavior

What is metagenomics?

TLS Online TPP Program

#Question id: 28435

#Unit 5. Developmental Biology

Primitive Streak is first arises from which area or cells?