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

According to F. Went, auxins transmit

The annual net primary productivity of the whole biosphere is approximately...

Lignified cell wall is the characteristic feature of

The cell wall of plant cells are

Mark the given statements True (T) or False (F).
(i) Any sexually reproducing organism starts its life cycle from a single-celled zygote.
(ii) The stages through which a cell passed from one division to the next is called cell cycle.
(iii) Yeast progresses through the cell cycle in 190 minute.
(iv) The cell cycle is divided into two phase interphase and M-Phase.
(v) Nuclear division is known as karyokinesis while cytoplasm division is known as cytokinesis.
(vi) In cell cycle, the resting phase during which cell is preparing for cell division is called interphase.
(vii) G₂ phase of M-phase is period when cell grows and carries out normal metabolism.
(viii) During S phase of interphase, amount of DNA per cell doubles.
(ix) If the cell has 2n number of chromosome at G₁ then number of chromosome after S phase will be 4n.
(x) G₀ phase of cell cycle is called quiescent stage.
(xi) During prophase phase of M-phase of cell cycle, duplicated centriole begins to move towards metaphase plate.
(xii) Kinetochores structure on surface of centromere serve as the sites of attachment of spindle fibres to the chromosome.
Choose the correct option given below :-

Choose the correct labelling for given figure

Which of the following matches is correct?

Which of the following is incorrect for reproduction?

In prokaryotes, the genetic material is