Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Turner's syndrome, Klinefelter's syndrome, Down's syndrome, Haemophilia.

Mention any two probable reasons for rapid rise of population in our country from and about 350 million at the time of independence to about one billion by the year 2000.

Name the enzyme and state its property that is responsible for Continuous and discontinuous replication of the two strands of a DNA molecule.

The presence of _________ group in every ribonucleotide makes RNA labile and reactive.

Bt toxin protein exists in which form inside bacterium?

How are tobacco plants benefitted when nematode specific genes are introduced into them using certain vectors? Name the vector used.

Give an example of a codon having dual function.

Mention a characteristic feature and a function of zoospores in some algae.

How does Penicillium reproduce asexually?

Mention the role of 'genetic mother' in MOET.