TLS Online TPP Program

#Question id: 2677


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

#SCPH06 I Botany
  1. Tryptophan is the repressor that binds to the operator, preventing transcription.

  2. The structural genes are used to make tryptophan, which would not be needed if tryptophan is available.

  3. Tryptophan has no effect on the transcription of the structural genes.

  4. Tryptophan RNA polymerase from finding the promoter of the trp operon, preventing structural gene transcription.

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TLS Online TPP Program

#Question id: 4727

#SCPH06 I Botany

if mendal had studied the seven trait using a plant with 12 chromosome instead of 14, in what manner would his interpretation have been different ?

TLS Online TPP Program

#Question id: 4727

#SCPH12 I Genetics

if mendal had studied the seven trait using a plant with 12 chromosome instead of 14, in what manner would his interpretation have been different ?

TLS Online TPP Program

#Question id: 4727

#SCPH28 | Zoology

if mendal had studied the seven trait using a plant with 12 chromosome instead of 14, in what manner would his interpretation have been different ?

TLS Online TPP Program

#Question id: 4728

#SCPH01 Biochemistry

The genotype r/r ; p/p gives fowl a single comb, R/– ; P/– gives a walnut comb, r/r ; P/– gives a pea comb, and R/– ; p/p gives a rose comb. Which of the following parental genotype would produce 3/8 Walnut comb, 1/8 pea comb, 3/8 rose comb and, 1/8 single comb?

TLS Online TPP Program

#Question id: 4728

#SCPH06 I Botany

The genotype r/r ; p/p gives fowl a single comb, R/– ; P/– gives a walnut comb, r/r ; P/– gives a pea comb, and R/– ; p/p gives a rose comb. Which of the following parental genotype would produce 3/8 Walnut comb, 1/8 pea comb, 3/8 rose comb and, 1/8 single comb?

TLS Online TPP Program

#Question id: 4728

#SCPH12 I Genetics

The genotype r/r ; p/p gives fowl a single comb, R/– ; P/– gives a walnut comb, r/r ; P/– gives a pea comb, and R/– ; p/p gives a rose comb. Which of the following parental genotype would produce 3/8 Walnut comb, 1/8 pea comb, 3/8 rose comb and, 1/8 single comb?