Evolution — BIOLOGY STD 12 Science — Question

What is meant by 'competitive release'?

Write the name of the bacterial product modified by genetic engineering which is used in 'clot dissolution' i.e. removal of clot from the blood vessels of a patient undergoing myocardial infarction leading to heart attack.

Define inheritance.

Write the two components of the first artificial recombinant DNA molecule constructed by Cohen and Boyer.

Which of the following diseases can be diagnosed by analysing the karyotype? Haemophilia, Turner's syndrome, Phenylketonuria.

What is recombinant DNA?

Name the two intermediate hosts which the human liver fluke depends on to complete its life cycle so as to facilitate parasitization of its primary host.

Fill in the blanks:
Ovulation is induced by a hormone called _____________.

Name the contraceptive recently developed at CDRI, Lucknow.

Give an example of a rod-shaped virus.