Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

A change in a sequence of DNA occurs so that the mRNA codon reads AUC rather than AUU. Both of these code for the amino acid iso leucine. Argue that this is not a mutation.

Name the scientist who rediscovered the results of Mendel's inheritance of traits?

Name an organism found as secondary carnivore in an aquatic ecosystem.

In a dihybird, cross, when would the proportion of parental gene combinations be much higher than non-parental types, as experimentally shown by Morgan and his group?

What is the principle behind the barrier methods of birth control?

What does nature’s carrying capacity for a species indicate?

Who gave theory of biogenesis?

What is the general range of the value of slope of the line of regression for any taxa in any region?

What is the percentage of photosynthetically active radiation (PAR), in the incident solar radiation.

1. 100%
2. 50%
3. 1-5%
4. 2-10%

Define population explosion.