Biotechnology and its Applications — BIOLOGY STD 12 Science — Question

You have chosen a plasmid as vector for cloning your gene. However this vector plasmid lacks a selectable marker. How would it affect your experiment?

When and where was the Earth Summit held? What was its objective?

List all the types of antibodies produced in our body. Among all, which antibodies are produced during?

1. Allergic reactions.
2. Transfusion reaction/ rejection.

Name the important mammary gland secretions that help in resistance of the new born baby.

Give the name of some traditional Indian recipes which are made from wheat, rice and chickpeas and the name of microbes used in.

Mention the importance of LH surge during menstrual cycle.

Explain the concept of differential reproduction as a major component of theory of natural selection.

Explain what is meant by metastasis.

The Human Genome Project (HGP) was a grand scheme which was started in 1990 for some important objectives.
(a) List any four major objectives of HGP.
(b) Write the name of any one common animal model other than humans which was sequenced over time.

Name an oral pill used as a contraceptive by human females. Explain how does it prevent pregnancy.