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.

After one generation in 15N-medium, the DNA is denatured and analyzed in a CsCl gradient. If the single-stranded DNA forms two bands, one with heavy density and one with light density, what conclusion could be drawn about the mechanism of DNA replication in this bacterium?

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#Question id: 32370

#Unit 2. Cellular Organization

Following are statements about VASP, except?

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#Question id: 21251

#Unit 12. Applied Biology

Polyhydroxyalkanoates are a class of

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#Question id: 13103

#Unit 13. Methods in Biology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 

You do each PCR reaction and load each one into a separate well of an agarose gel, and then run the gel.

 

 

Why is it that some people show only one band?

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#Question id: 7078

#Unit 5. Developmental Biology

Fetal alcohol syndrome represents only a portion of a range of defects caused by:

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#Question id: 12011

#Unit 10. Ecological Principles

The supercontinent that began to break up during  the Triassic