Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

An antibiotic called wonder drug was used to treat the wounded soldiers of America during World War II. Name the drug and scientist, who discovered it.

Mark the odd one in the following group.
Cellulose, Lysozymes, Chitinase, Endonuclease.

Give a biological term for single step large mutation.

Why do pollen grains of some flowers trigger ‘sneezing’ in some people?

Name two STDs which can be transmitted through contaminated blood.
OR
Name two sexually transmitted diseases that do not specifically affect the reproductive organs.

Give an example of a sex-linked recessive disorder in humans.

Mark the odd one in the following groups.
Dragonflies, Trichoderma, Baculoviruses, Streptococcus.

The Amazon rain forest is referred to as the lungs of the planet'. Mention any one human activity which causes loss of biodiversity in this region.

Reproductive health refers only to healthy reproductive functions. Comment.