Reproductive Health — BIOLOGY STD 12 Science — Question

What is a mutagen? Name a physical factor that can be mutagen.

State what happens when an alien gene is ligated at Pvu I site of PBR 322 plasmid.

What is activated sludge.

Define inheritance.

Mention the function of mitochondria in sperm.

Thymus of a new born child was degenerating right from birth due to a genetic disorder. Predict its two impacts on the health of the child.

In a test cross progeny of pea plants, all were bearing violet flowers. Give the genotypes of the parent pea plants.

Name the largest of the known human gene and the number of bases it contains.

Write the phenotypic ratio of Mendel's dihybrid cross?

“Pranay suffered from measles at the age of 10 years. There are rare chances of his getting infected with the same disease for the rest of his life.” Give reason for the statement.