A population of charmingly charismatic rodents, population A, lives on a small island. The population consists of 100,000 individuals. Are all individuals of A genetically identical?

A. yes
B. no


B

Biology & Microbiology

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To create a knockout mouse, after introducing to ES cells a DNA construct in which a specific gene is mutagenized by the insertion of a drug resistance marker, the cells

A) that have incorporated the transgene by homologous recombination grow in the presence of the drug and these are injected into a host blastocyst. B) that lack the transgene grow in the presence of the drug and these are injected into a host blastocyst. C) that have deleted the transgene grow in the presence of the drug and the nuclei are injected into a host blastocyst. D) that lack the transgene grow in the presence of the drug and the nuclei are used for nuclear transfer.

Biology & Microbiology

Explain the origin, location, and function of the proton gradient in the process of photosynthesis. What will be an ideal response?

Biology & Microbiology

Three investigators—Nusslein-Volhard, Wieschaus, and Lewis—won the Nobel Prize for physiology and medicine in 1995 for work they did in 1970 with Drosophila. Briefly describe their findings

What will be an ideal response?

Biology & Microbiology

NAD and FAD act as _____ carriers

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology