Practice Questions

TLS Online TPP Program

#Question id: 2635

In E. coli, deleting the ribosome binding site and region 1 of the trp attenuator and leaving the remainder of the attenuator intact has which of the following effects?

#SCPH05 I Biotechnology

The attenuator structure will not form, and the structural genes will be transcribed.
The attenuator structure will always form, and transcription will terminate.
The frequency of attenuation will still be controlled by the concentration of trp-tRNAtrp.
Translation of the structural genes will not occur.

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TLS Online TPP Program

#Question id: 27833

#Research Methodology

Which country has launched the cargo spacecraft ‘Tianzhou-5’?

TLS Online TPP Program

#Question id: 85

#SCPH01 Biochemistry

Below is the structure for a cyclic D-monosaccharide. Which is the anomeric carbon atom?

TLS Online TPP Program

#Question id: 7762

#SCPH01 Biochemistry

Correlation between life span and the ability of fibroblasts to repair DNA in various mammalian species, Repair capacity is represented in autoradiography by the number of grains from radioactive thymidine per cell nucleus. According to graph, which factor exist on x-axis ? Note that the y-axis (life span) is logarithmic.

TLS Online TPP Program

#Question id: 5214

#SCPH06 I Botany

What is the most probable explanation for the continued presence of pseudogenes in a genome such as our own?

TLS Online TPP Program

#Question id: 1293

#SCPH28 | Zoology

NCAMs, a group of cell-adhesion proteins belonging to the Ig superfamily. Which of the following is not a property of NCAM?