Plant Growth and Mineral Nutrition — BIOLOGY STD 12 Science — Question

What is the annual net primary productivity of whole biosphere?

Select the plant having both chasmogamous and cleistogamous flowers.

During the process of ecological succession the changes that take place in communities are:

The principle of competitive exclusion was stated by:

The concept that organizer is essential for embryonic development was given by:

Place the following event of translation in the correct sequence ………………..
i. Binding of met-t-RNA to the start codon.
ii. Covalent bonding between two amino acids.
iii. Binding of second t-RNA.
iv. Joining of small and large ribosome subunits.

In ginger vegetative propagation occurs through:

A human gene product can be produced by genetically engineered bacteria. This is possible, because the:

Annealing temperature of primer is ………………..

In a biogas plants, one of them will be essential: