following different cross allowed and their respective phenotype.

Character	Male genotype	Female genotype	Progeny phenotype
M	Aa	Aa	3:1
N	Aa	aa	1:1
O	Aa	AA	1:1
P	Aa	AA	1

Which of the following observation conclude correct mode of dominance?

TLS Online TPP Program

#Question id: 2636

#Unit 2. Cellular Organization

Which of the following events occur when E. coli is starved for tryptophan?

I.  The ribosome translates leader peptide completely

II. Transcription reads through attenuator into trp EDCBA

III. Tryptophanyl tRNA is not formed

IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site

TLS Online TPP Program

#Question id: 2637

#Unit 2. Cellular Organization

Which of these operons is anabolic?

TLS Online TPP Program

#Question id: 2638

#Unit 2. Cellular Organization

Which of these systems give the best mode for turning trp operon off?

TLS Online TPP Program

#Question id: 2639

#Unit 2. Cellular Organization

A Lac repressor is a tetramer repressed when bound to the inducer. The trp repressor is a ____________________

TLS Online TPP Program

#Question id: 2640

#Unit 2. Cellular Organization

Which of these properties do not agree with trp operon attenuator?

TLS Online TPP Program

#Question id: 2641

#Unit 2. Cellular Organization

Which segments of the attenuator together form the repression loop?