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TLS Online TPP Program

#Question id: 10773

What is Pseudo dominance?

#Zoology
  1. when dominant allele TT express
  2. when recessive allele tt express
  3. when heterozygous allele Tt express
  4. when in any case dominant allele T deleted and recessive allele t express in heterozygous condition.
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TLS Online TPP Program

#Question id: 4103

#Biotechnology

In a biochemical experiment, you compare the products from splicing reactions carried out in vitro using three different substrates. In each case the substrate is a construct containing a single intron surrounded by two exons, and in all cases the construct is the same overall size. But in one case, the intron is a group I intron, in another a group II intron, and in the third an intron removed by the spliceosome. Each construct is labelled in a manner that allows it to be detected after gel electrophoresis, and each is tested in two reactions—one, conditions that support self-splicing, and two, in the presence of nuclear extract as well. Note that, for simplification, only the final products of the splicing reaction are seen, but before degradation of the introns.

 Which of the following observation is/are correct?

A. In lane A, the presence of nuclear abstract, a band for the lariat and the spliced product and pre-mRNA.

B. Lane B shows Group I Introns and Lane C is for Group II introns and reaction is nonself-splicing

C. Lane C is Group I intron. Splicing takes place in the absence and presence of nuclear abstract, and the reaction is self-splicing.
TLS Online TPP Program

#Question id: 12914

#Biotechnology

 In Electrophoresis of DNA the gel is first soaked in the alkali then it is transferred to the membrane so that the ________
TLS Online TPP Program

#Question id: 13033

#Biotechnology

The sample is then fractionated by electrophoresis through a _______. As all the proteins now have an _______ to mass ratio, they are separated on the basis of their _____.
TLS Online TPP Program

#Question id: 27374

#Biotechnology

An aqueous solution contains two compounds X and Y. This solution gave absorbance values of 1.0 and 0.4 at 220 and 280 nm, respectively, in a 1 cm path length cell. Molar absorption coefficients (ε) of the compounds X and Y are as shown in the table below.

The concentration of Y in the solution is___________ mM.
TLS Online TPP Program

#Question id: 14474

#Biotechnology

Probability of getting an even number in a single throw with a die is
TLS Online TPP Program

#Question id: 14475

#Biotechnology

Probability of getting tail in a throw of a coin is