Biotechnology — BIOLOGY STD 12 Science — Question

Give definitions : Transduction

Fundamental niche

Coconut plant is monoecious while date palm is dioecious. Why are they called so?

Write the names of the following:

1. A 15 mya primate that was ape-like.
2. A 2 mya primate that lived in East African grasslands.

When does the ozone hole develop over Antarctica every year?

British geneticist R.C. Punnett developed a graphical representation of a genetic cross called 'Punnett Square'. Mention the possible result this representation predicts of the genetic cross carried.

Define the following : Immunity

The scientific term for the animals giving birth to live young ones.

The meiocyte of rice has 24 chromosomes. Write the number of chromosomes in its endosperm.

Using a single template molecule, how many DNA molecules are generated after 10 cycles of amplification in PCR?

1. 1024 molecules.
2. 1128 molecules.
3. 1224 molecules.
4. 927 molecules.