STD 11 - 6. Anatomy flowering plants — NEET STD 11 Science — Question

The compounds that are subjected to biological oxidation are called _______ in which ______ is the most common.

First biochemical to be produced commercially by microbial cloning and genetic engineering is

In gene gun method used to introduce alien DNA into host cells, microparticles of gold or tungsten metal are used in...

Carnivorous animals - lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards take smaller ones. This mechanism of competition is referred to as

Which of the following statements are correct ?
(i) Vernalisation refers to the promotion of flowering by a period of high temperature.
(ii) The spring variety of crops are normally planted in the spring and come to flower before the end of the growing season.
(iii) It is not seen in biennial plants.
(iv) Subjecting cold treatment to sugar beet will result in flowering.
(v) Cytokinins specially help in delaying senescence.
(vi) Auxins are involved in regulating apical dominance.
(vii) Ethylene is specially useful in enhancing seed germination.
(viii) Gibberellins are responsible for immature falling of leaves.
(ix) Cytokinins promote senescence.
(x) Auxins control apical dominance.
(xi) Gibberellins promote shoot elongation.
(xii) Abscissic acid enables seeds to withstand desiccation.
Choose the correct option given below :-

Lignification is associated with

Assertion: Deuteromycetes commonly known as imperfect fungi.
Reason: Because only the sexual phase of these fungi are known.

Pigments present in Ulothrix are