Practice Questions

TLS Online TPP Program

#Question id: 1434

A bone tumor sample appears to be heterozygous for a p53 mutation. The most likely explanation for this finding is:

#Biochemistry

Mutated p53 is an oncogene.
The p53 mutation is resulting in a dominant negative p53 protein.
The p53 mutation is resulting in a premature stop codon, and no functional protein is made from that allele.
There was a mistake in labeling the tissue sample—all tumors musts lack p53.

More Questions

TLS Online TPP Program

#Question id: 39235

#Plant Biotechnology

Q. Streptomycin resistance involving survival plus green colonies is an example of:

TLS Online TPP Program

#Question id: 39236

#Plant Biotechnology

Q. Which of the following statements about epigenetic variants is TRUE?

TLS Online TPP Program

#Question id: 39237

#Plant Biotechnology

Q. True mutants are characterized by:

TLS Online TPP Program

#Question id: 39238

#Plant Biotechnology

Q. Which of the following correctly represents the cause–category relationship?

TLS Online TPP Program

#Question id: 39239

#Plant Biotechnology

Q. The frequency of stable variants in cell selection:

TLS Online TPP Program

#Question id: 39240

#Plant Biotechnology

Q. Loss of resistance in plant cell lines after growth in the absence of selection pressure is characteristic of: