STD 12 - 13. biodiversity and conservation — NEET STD 11 Science — Question

How many statements for artificial systems of classification are correct from given statements?
i. The classification used only gross superficial morphological characters.
ii. They were based mainly on vegetative characters or on the androecium structure.
iii. Not give equal weightage to vegetative and sexual characteristics.
iv. They separated the closely related species since they were based on a few characteristics.
v. They were based on habit, colour, number and shape of leaves etc.

Genes are

Find correct statement for the prothallus of fern

Highest growth found in

Given organisms belongs to how many genera?

Wheat, Brinjal, Potato, Lion, Dog, Tiger

Necessary steps for achieving good health are
i. awareness about diseases.
ii. vaccination.
iii. proper disposal of wastes.
iv. maintenance of hygienic food and water resources.
v. water resources.
The correct combination having necessary steps are

Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it ?

They are chemically identical.

Conversion of oxaloacetic acid into malic acid is

In a pollen grain, larger nucleus is