Which of the following is incorrectly matched if in the medium

a. glucose + lactose	= basal level of transcription
b. glucose + lactose	= no transcription
c. glucose  lactose+	= activated level of transcription
d. glucose + lactose +	= basal level of transcription

TLS Online TPP Program

#Question id: 2675

#Unit 2. Cellular Organization

Which of the following statements regarding the trp operon is true?

TLS Online TPP Program

#Question id: 2676

#Unit 2. Cellular Organization

The structural genes of lac operon transcribe mRNA which is

TLS Online TPP Program

#Question id: 2677

#Unit 2. Cellular Organization

Why is the transcription of structural genes of the trp operon turned off in the presence of tryptophan?

TLS Online TPP Program

#Question id: 2678

#Unit 2. Cellular Organization

Insertional inactivation of the lacZ gene on a plasmid can be used to screen for recombinants on a plate containing:

TLS Online TPP Program

#Question id: 2679

#Unit 2. Cellular Organization

When the same region, or locus, of a chromosome has two (or more) slightly different DNA sequences in different chromosomes or individuals of the same species, these are described as

TLS Online TPP Program

#Question id: 2680

#Unit 2. Cellular Organization

What is alphoid DNA?