TLS Online TPP Program

#Question id: 910


Experiments on denaturation and renaturation after the reduction and reoxidation of the —S—S— bonds in the enzyme ribonuclease (RNase) have shown that:

#Part-B Specialized Branches in Biotechnology
  1. folding of denatured RNase into the native, active conformation, requires the input of energy in the form of heat.

  2. native ribonuclease does not have a unique secondary and tertiary structure.

  3. the completely unfolded enzyme, with all —S—S— bonds broken, is still enzymatically active.

  4. the primary sequence of RNase is sufficient to determine its specific secondary and tertiary structure.

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TLS Online TPP Program

#Question id: 4813

#Part-A Aptitude & General Biotechnology

You perform the three different two-factor crosses (Cross 1: XY and xy, Cross 2: YZ and yz, and Cross 3: XZ and xz). Assume all crosses are between diploid flies homozygous for the alleles of these genes. You observe 7% recombinants in the first cross, 20% recombinants in the second cross, and 13% recombinants in the third cross. if cross between XyZ and xYz leads to which of the followining recombinant with double cross over .

TLS Online TPP Program

#Question id: 4900

#Part-A Aptitude & General Biotechnology

The chlorophyll-deficient types occur in a particular plant species due to a mutation in the DNA of the chloroplast itself, Female cytoplasm chlorophyll-deficient organisms crossed with male normal chlorophyll will produce progeny

TLS Online TPP Program

#Question id: 4901

#Part-A Aptitude & General Biotechnology

Assume that the alleles A (dominant) and a (recessive) show a maternal effect mode of inheritance. In a cross between an Aa female and an aa male, what would be the phenotypes of the progeny?

TLS Online TPP Program

#Question id: 4902

#Part-A Aptitude & General Biotechnology

Leber hereditary optic neuropathy (LHON) is mitochondrial diseases present in family. Which of the following observation is correct?

TLS Online TPP Program

#Question id: 4903

#Part-A Aptitude & General Biotechnology

 In genetic maternal effect

TLS Online TPP Program

#Question id: 4904

#Part-A Aptitude & General Biotechnology

Which one of the following statements is INCORRECT regards cytoplasmic inheritance?