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TLS Online TPP Program

#Question id: 1508

Of the following statements explaining how alterations of the ras gene cause cancer, which is true?

#Unit 4. Cell Communication and Cell Signaling

  1. A base substitution in the c-ras gene that replaces a critical glycine with another amino acid.

  2. Infection of the cell by a tumor virus carrying a v-ras gene.

  3. Linkage of the c-ras gene to a viral promoter.

  4. All of the above statements are true.

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TLS Online TPP Program

#Question id: 15675

#Unit 2. Cellular Organization

Shake tubes are used to determine the
TLS Online TPP Program

#Question id: 2781

#Unit 2. Cellular Organization

How many genes are estimated to be in the human genome?
TLS Online TPP Program

#Question id: 15973

#Unit 12. Applied Biology

Why the casein hydrolysate will used during embryo culturing?
TLS Online TPP Program

#Question id: 10396

#Unit 6. System Physiology – Plant

Very low fluence response (VLFR) is
TLS Online TPP Program

#Question id: 3832

#Unit 3. Fundamental Processes

You briefly expose bacteria undergoing DNA replication to radioactively labeled nucleotides. When you centrifuge the DNA isolated from the bacteria, the DNA separates into two classes. One class of labeled DNA includes very large molecules (thousands or even millions of nucleotides long), and the other includes short stretches of DNA (several hundred to a few thousand nucleotides in length). Which two classes of DNA do these different samples represent?