Biotechnology — BIOLOGY STD 12 Science — Question

Name the following : The muscles which form the wall of scrotum.

Define trophic level.

Name the gas released and the process responsible for puffing up of the bread dough when Saccharomyces cereviseae is added to it.
OR
Name the metabolic pathway associated with the rising of dough in making bread. What makes the dough rise?

Who proposed that life comes only from pre-existing life?

Methods of synthesis of amino acids.

Where does the sexual reproduction of malarial parasite take place?

Give the names of biodiversity rich zones in India.

Name the enzyme involved in the continuous replication of DNA strand. Mention the polarity of the template strand.

Mark the odd one in the following group.
Promoter, Inducer, Operator, Terminator.

Which are the parts of plant that help in the process of gaseous exchange?