Human Health and Disease — BIOLOGY STD 12 Science — Question

Species that can tolerate wide range of salinity are called _________.

Who developed the technique of electrophoresis? Write the principle on which it is based.

Name the kind of pollination in maize.

Mention the function of mitochondria in sperm.

State the two principal outcomes of the experiments conducted by Louis Pasteur on origin of life.

Who is benefitted and suffered loss in Parasitism and predation?

BT toxin is encoded by which gene?

A geneticist interested in studying variations and patterns of inheritance in living beings prefers to choose organisms for experiments with shorter life cycle. Provide a reason.

What is the cause of altitude sickness at high altitudes?

How many X-chromosomes and how many autosomes are present in a human ovum?