Reproduction in organisms — BIOLOGY STD 12 Science — Question

What is the definition of biotechnology given by the European Biotechnology Association?### Define biotechnology.

A certain tissue, of a plant, infected with TMV was used to obtain a new plant using tissue culture technique. Identify the technique used and reason out the possibility of obtaining a new healthy plant.

Regions with high endemism are chosen as hotspots. Why?

Write the names of pest crops prepared with the help of biotechnology.

Mention the two additional processings which hnRNA needs to undergo after splicing so as to become functional.

Is Marchantia monoecious or dioecious? Where are the sex organs borne in this plant?

Define the following terms and give one example for each:
Interspecific competition

Mark the odd one the following groups.
Fimbriae, Labia minora, Infundibulum, Isthmus.

Which type of cell division forms spermatids from the secondary spermatocytes?

Give an example of a human disorder that is caused due to a single gene mutation.