In merabilis jalapa plant red plant RR Cross with white plant rr. In F1 generation the phenotype obtained was Rr Pink. Which type of cross it is

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#Question id: 1921

#Section 2: General Biology

In Burkitt's lymphoma, a vaccine against which of the following might prove useful?

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#Question id: 15921

#Section 6: Plant, Animal and Microbial Biotechnology

_________________is one of the limitation of animal tissue culture 

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#Question id: 16032

#Section 6: Plant, Animal and Microbial Biotechnology

The major problem associated with the isolation of free cells and cell aggregates from organs is that of

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#Question id: 12917

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Arrange the steps of stages in PCR in correct order.

1. The region to be specifically amplified is made accessible within the complex DNA.

2. The double stranded DNA is denatured by heating the reaction mixture to above 90 degree Celsius.

3. A thermal cycler is used to incrementally decrease the annealing temperature.

4. Reaction mixture is then cooled to a temperature between 40 and 60 degree celsius.

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#Question id: 1091

#Section 3: Genetics, Cellular and Molecular Biology

Why does testosterone, a lipid-soluble signaling molecule that crosses the membranes of all cells, affect only target cells?