Name the scientist who discovered the law of heredity:

A gamete contains which of the following?

each gamete receives single allele of a gene.

All types of mutations are transferable among generations.

Germ-line mutations occur in gametes which can be inherited while, somatic mutations cannot be inherited.

Mark the INCORRECT statement about mutation?

mutation is not predestined.
It occurs when DNA is damaged or an error occurs in a DNA.

Damage and errors in DNA cause___________.

damage and errors in DNA causes mutation.

What is the evolutionary purpose of cells that undergo crossing over?

When does chromosomal crossover occur?

Chromosomal crossover is the natural pairing up and exchanging of genetic material between

Which of the following does not cause variation?

What is the structural and functional unit of heredity?

When does crossing over occur in meiosis?

__________is the degree to which differences are seen in parents and their offsprings.

DNA is present in _________ of a cell.

A moving hammer drives a nail into the wood. It has kinetic energy.

.   A student carries a bag weighing 50 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is

How much time will be required to perform 5200 J of work at the rate of 20 W?