Pollen sacs develop into
Anonymous Quiz
20%
Microsporophyll
21%
Megasporangia
55%
Microsporangia
3%
Megasporophyll
π5β€1
The stages through which a cell passes from one division to the next is called
Anonymous Quiz
71%
Cell cycle
20%
Meiosis
6%
Anaphase
3%
Metaphase
π5β€1
The cell cycle is divided into two phases called.
Anonymous Quiz
22%
Interphase
10%
Mitosis
3%
Anaphase
65%
Interphase or mitosis
π6π€2π1π€©1
The final stage of meiotic prophase I is
Anonymous Quiz
80%
Diakinesis
6%
Metaphase
6%
Anaphase
7%
Prophase 1
π6π€1
Such paired
chromosomes are called
chromosomes are called
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91%
Homologous chromosomes
4%
Heterogeneous chromosome
3%
Zygote
2%
Chromosome
π6π€2
The formation of the new cell wall begins with the
formation of a simple precursor, called
formation of a simple precursor, called
Anonymous Quiz
74%
Cell plate
7%
Tissue plate
14%
Chromosome plate
5%
Begins cell
π7π€©1
π7β€1
The process of formation of microspores from a _________ through ___________ is called microsporogenesis.
Anonymous Quiz
58%
Pollen mother cell and meiosis
16%
Pollen mother cell and mitosis
21%
Microspore mother cell and mitosis
5%
Sporogenous cells and meiosis
π4β€2
Which among these have abundant reserve food materials and envelops female gametophyte?
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52%
Nucellus
36%
Embryo sac
3%
Funicle
9%
Integuments
π6β€1
Female gametophyte is
Anonymous Quiz
48%
Embryo sac
5%
Microsporophyll
41%
Megasporangium
6%
Microsporangia
π6β€1
A typical angiosperm female gametophyte at maturity contains
Anonymous Quiz
6%
6 cells and 7 nuclei
4%
7 cells and 6 nuclei
75%
7 cells and 8 nuclei
15%
8 cells and 7 nuclei
π7β€1
A cell cycle includes
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66%
interphase and M phase
12%
G1,S and G2 phases
15%
Karyokinesis and cytokinesis
7%
prophase, metaphase, anaphase and telophase
π6
Of the total duration of cell cycle of a human cell,cell division properly lasts for about
Anonymous Quiz
19%
90 minutes
11%
Half an hour
34%
23 hours
36%
An hour
π6β€1π1
Of the total duration of cell cycle, the interphase lasts more than
Anonymous Quiz
77%
95 %
15%
90 %
3%
92 %
5%
5 %
π6β€1π1
Which phase corresponds to the interval between
mitosis and initiation of DNA replication?
mitosis and initiation of DNA replication?
Anonymous Quiz
62%
Gap 1/G1, phase
22%
Synthesis/S phase
9%
M phase
7%
Gap 2/G2, phase
π6
Recombination involves
Anonymous Quiz
84%
Crossing over
9%
Chromosome duplication
5%
Spindle formation
2%
Cytokinesis
π4π3π₯1
Crossing over takes place in
Anonymous Quiz
15%
Metaphase - I
14%
Anaphase- I
13%
Prophase-II
58%
Prophase-I
π7β€2
Non-sister chromatids exchange segments during
Anonymous Quiz
21%
Zygotene
10%
Leptotene
15%
Diplotene
54%
Pachytene
π9
Crossing over requires an enzyme
Anonymous Quiz
86%
Recombinase
7%
Ligase
6%
Polymerase
2%
Endonuclease
π6π2β€1π€1π1
Terminalisation occurs during
Anonymous Quiz
10%
Meiosis II
61%
Diakinesis
21%
Diplotene
7%
Anaphase-I
β‘4π4
Which of the following produce assured seed set even in the absence of pollinators
Anonymous Quiz
15%
Chasmogamy
66%
Cleistogamy
11%
Geitonogamy
8%
Xenogamy
π5π2π€1