STD 11 - 5. Morphology flowering plants — NEET STD 11 Science — Question

Intine of pollen grains is composed of

In which of the following plant diploid stage generally dominates

Triple fusion is characteristic of

Ubisch bodies are secreted by

Microbodies differ from lysosomes in that

Choose the correct one for dicotyledonous stem from given statements.
(i) Epidermis is the outermost protective layer of the stem, covered with a thin layer of cuticle, it may bear trichomes and a few stomata.
(ii) The cells of the endodermis are rich in starch grains and the layer is also referred to as the starch sheath.
(iii) Pericycle is present on the inner side of the endodermis and above the phloem in the form of semi-lunar patches of parenchyma.
(iv) In between the vascular bundles there are a few layers of radially placed parenchymatous cells, which constitute medullary rays.
(v) A large number of vascular bundles are arranged in a ring.
(vi) Vascular bundles are conjoint and closed.

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

What will be the sequence of mRNA produced by the following stretch of DNA?
3' ATGCATGCATGCATG 5' TEMPLATE STRAND
5' TACGTACGTACGTAC 3' CODING STRAND

Meiosis is seen in pteridophytes during which process