The use of Bio- resources by multinational companies and other organisations without proper authorisation from the countries and people concerned, without compensatory payment is Read More …
Category: Class 12
Mention any 1 significant feature of Restriction Endonuclease.
Restriction Endonuclease inspects the length of DNA, recognises a specific base pair sequence in DNA called a restriction site and cuts the DNA at Read More …
State Mendel’s law of independent assortment . Explain a Dihybrid cross & its result obtained by him?
Mendel’s Law of Independent Assortment states that when two pairs of traits are combined in a hybrid, segregation of one pair of characters is Read More …
During a war , the lost children were adopted by military personnel. Based on advanced blood test , they were later reunited with their parents. Name the technique used in this case & mention its scientific basis
DNA fingerprinting Based on the fact that DNA of one individual is 90% identical to DNA of another individual but there is 10% difference. Read More …
Why is DNA a better genetic material ?
DNA 1. Has two complementary strands. If separated by heating come back when appropriate conditions are provided. 2. Chemically less reactive Read More …
12th Biology NCERT Prep
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sample 10th bio
Sample 11th Bio Pre
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Describe the genetic code.
The genetic code was deciphered by Har Gobind Khorana. All organisms have the same genetic code supporting that they share a common evolutionary history. Read More …
What is Chargaff’s rule ?
Chargaff found that concentrations of the four nitrogenous bases differed from one species to another. For a double stranded DNA for each species pyrimidine and Read More …