TLS Online TPP Program

#Question id: 18864


In light microscopy, the highest resolution is attained with-

#SCPH01 Biochemistry
  1. The wavelength of visible light with the longest wavelength was selected 
  2. A lens with a small numerical aperture.
  3. Visible light with the shortest wavelength
  4. The shortest visible light wavelength was chosen, as well as an objective with the highest numerical aperture.
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TLS Online TPP Program

#Question id: 16771

#SCPH06 I Botany

What is the median?

TLS Online TPP Program

#Question id: 15185

#SCPH06 I Botany

Phenomenon of Smiling Effect is largely applicable in
A. Gel Electrophoresis
B. PAGE
C. Free Solution
D. Capillary

TLS Online TPP Program

#Question id: 16140

#SCPH06 I Botany

Many mouse genes are “tissue-specific,” that is, they are present throughout the body but are expressed in only one of the animal’s many tissue types. (Other mouse genes are expressed throughout the body, or in multiple tissues.) Geneticists can study the regulation of a mouse gene by fusing the gene’s promoter region to the LacZ coding sequence and injecting the construct to create a transgenic mouse. Fusion of the mouse amylase promoter to LacZ yielded a Pamylase-LacZ construct.
You are surprised to observe that mice homozygous for the transgene insertion display a serious heart defect. (Heterozygotes have normal hearts.) which one is a  possible explanation?
a) LacZ overexpression (with two copies of the transgene) causes the defect.
b) the insertion disrupted a gene that is haploinsufficient.
c) the insertion disrupted a gene that is haplosufficient.
d) LacZ expression inhibition (with two copies of the transgene) causes the defect.
Which of the following statements is correct  predict about the  heart defect?

TLS Online TPP Program

#Question id: 2658

#SCPH05 I Biotechnology

This condition in lac operon facilitates the condition of lac genes being transcribed at high levels

TLS Online TPP Program

#Question id: 10397

#SCPH06 I Botany

Both VLFRs and LFRs depends on law of reciprocity that is, the magnitude of the response is dependent on the