The calendar of the year 1897 can be used again in the year?

TLS Online TPP Program

#Question id: 26475

#Unit 3. Fundamental Processes

If the nonsense mutation in one gene of a transcription unit it leads to the premature termination of transcription the phenomenon known as

TLS Online TPP Program

#Question id: 26476

#Unit 3. Fundamental Processes

Some of the definitions are given match them correctly

Column 1	Column 2
1. Repressors bind to specific sites on the DNA. In bacterial cells, such binding sites, called	a. effector
2. Regulation by means of a repressor protein that blocks transcription is referred to as	b. positive regulation
3. Activators bind to DNA and enhance the activity of RNA polymerase at a promoter; this is	c. negative regulation
4. Repressor binding to DNA is regulated by a molecular signal called	d. operators

TLS Online TPP Program

#Question id: 31310

#Unit 3. Fundamental Processes

The lentiviral expression vectors are particularly useful for introducing synthetic genes for the expression of

TLS Online TPP Program

#Question id: 31340

#Unit 3. Fundamental Processes

A mutation in which one of the following sigma factors may be a possible cause for E. coli failing to adapt in nitrogen stress?

TLS Online TPP Program

#Question id: 4123

#Unit 3. Fundamental Processes

A certain bacterial mRNA is known to represent only one gene and to contain about 800 nucleotides.  If you assume that the average amino acid residue contributes 110 to the peptide molecular weight, the largest polypeptide that this mRNA could code for would have a molecular weight of about:

TLS Online TPP Program

#Question id: 4124

#Unit 3. Fundamental Processes

Assuming that the average amino acid residue contributes 110 to the peptide molecular weight, what will be the minimum length of the mRNA encoding a protein of molecular weight 50,000?