Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

A number of passengers were severely burnt beyond recognition during a train accident. Name and describe a modern technique that can help hand over the dead to their relatives.
OR
Following the collision of two trains a large number of passengers are killed. A majority of them are beyond recognition. Authorities want to hand over the dead to their relatives. Name a modern scientific method and write the procedure that would help in the identification of kinship.

Bee keeping practice is a good income generating industry. Write the different points to be kept in mind for successful bee keeping. Write the scientific name of the most common Indian species used for the purpose.

What are the different types of hybridization in plants?

Explain the following with reference to drug/alcohol abuse:

1. Addiction.
2. Dependence.
3. Withdrawal symptoms

What do you understand by Snow-blindness?

Draw a labelled diagram of the microscopic structure of a human sperm.

Angiography.

State the function of a reservoir in a nutrient cycle. Explain the simplified model of carbon cycle in nature.

Describe the internal structure of anther (diagram is not expected).

Make a chart showing the types of isolating mechanisms.