STD 11 - 3. Plant kingdom — NEET STD 11 Science — Question

Auxin in plant means for

Studies under karyotaxonomy are based upon

In which of the following gametophyte is not independent free living ?

In TCA or Krebs' cycle following reaction occurs :
(i) Condensation of acetyl group with oxaloacetic acid (OAA) and water to yield citric acid.
(ii) Citrate is then isomerised to isocitrate.
(iii) Formation of ἀ-ketoglutaric acid
(iv) Formation of succinyl-CoA.
(v) Succinyl-CoA is oxidised to OAA.
Which reaction is catalysed by the enzyme citrate synthase and a molecule of CoA is released :

In a marriage between male with blood group A and female with blood group B, the progeny had either blood group AB or B. What could be the possible genotype of parents?

By arc auxanometer, we measure the growth in

How many statements are wrong for Botanical gardens ?
(i) Museum may be set up in educational institutes.
(ii) Museums have collections of preserved plant and animal specimens
(iii) Specimens are not preserved in the jars in preservative solutions.
(iv) Plant and animal specimens may also be preserved as dry specimens
(v) Insects are preserved in insect boxes after collecting, killing and pinning
(vi) Small animals are usually stuffed and preserved.
(vii) Museums often have collections of skeletons of animals

"Ramachandran plot" is used to confirm the structure of

The hormone releasing IUDs among the following are:
(a) Multiload 375
(b) LNG-20
(c) Progestasert
(d) Lippe's loop
(e) Vaults
Choose the most appropriate answer from the options given below :

Synergids, zygote and primary endosperm nucleus (The haploid diploid and triploid structure) of a fertilized embryo sac are sequentially in