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

In fern, sporangia are borne on the

If the heart wood region of plant is removed or decays

Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tend to be

Bacterial ribosomes are present

Phospholipids are esters of glycerol with

The pyramid that cannot be inverted in a stable ecosystem, is pyramid of

Given below are two statements: One is labelled asAssertion (A) and the other is labelled as Reason (R)
Assertion (A): Potato and sweet potato is an example of analogy.
Reason(R): Potato is modification of stem while sweet potato is modification of root but they perform similar function (storage of food).
In the light of the above statements, choosethe correct answer from the options given below:

Which of the following statements are true for telophase ?
(i) Centromeres split and chromatids separate.
(ii) Chromatids move to opposite poles.
(iii) Chromosomes cluster at opposite spindle poles and their identity is lost as discrete elements.
(iv) Nuclear envelope assembles around the chromosome clusters.
(v) Nucleolus, golgi complex and ER reform.
(vi) The individual chromosomes can no longer be seen and chromatin material tends to collect in a mass in the two poles.