問題一覧
1
Spindle fiber formation takes place by the polymerization of microfilaments🔥
f
2
In which phase Chromosome with two sister chromatids first appear A )Anaphase B) Metaphase C)Prophase D )Telophase
3
3
Duplication of mitochondria chloroplast and Golgi body occurs in
G2 phase
4
Transition to metaphys is also known as beginning of metaphase
t
5
Cell dividing phase or division phase is also known as mitotic phase and and M phase
t
6
In which phase spindle fibre breakdown occurs
Telophase
7
A: In prophase chromatin condensation begins R: To faciliate movement of chromosome during cell division
1
8
Which phase is the phase of two nucleus
Telophase
9
In which phase centriolar movement begins
Prophase
10
Chromatin condensation begins in which phase
Prophase
11
Question Starting of Prophase is marked by🏹🏹
Initiation of condensation of chromosomal material
12
Pre mitotic phase is
G2 phase
13
Number of chromosome is equal to
t
14
Which phase is represented in diagram
transition to metaphase
15
In which phase reappearance of cell organelles occurs
Telophase
16
Yeast cell multiply in 90 minutes calculate duration of interphase
85.5 min
17
A: In prophase disintegration of nuclear membrane occurs R: To facilitate joining of spindle fibres to chromosome
1
18
Interphase 1. Is a biosynthetic phase in which the cell duplicates its organelles 2. Constitutes more than 95% duration of cell cycle. 3. Is the phase between two successive M-phase Correct options are
1,2,3
19
Maximum size of cell is present in
G2 phase
20
Which event of early prophase completes in late prophase
disappearance of cell organelles
21
Interphase involves all except
mitotic phase
22
Phase of cytoplasmic growth is (NCERT summary)
G2 phase
23
Select the wrong statement about metaphase
complete disintegration of nuclear membrane is the beginning of M phase
24
Chromosome consists of
all of the above
25
Which phase is represented in diagram🔥
late prophase
26
DNA replication occurs in which phase of cell cycle
S phase
27
Cell cycle is per form for reproduction in unicellular organisms
t
28
In which phase spindle fibre formation begins
Prophase
29
Cytoplasmic division is followed by nuclear division 🔥🔥
f
30
Typical human cell divides in 24 hour then calculate time for M phase🔥
1hrs
31
In which phase chromosomes with two sister chromatids are just visible
Prophase
32
Post mitotic phase is
G1 phase
33
Sister chromatids have identical DNA sequence
t
34
Tubulin Protein synthesis occurs in
G2 phase
35
Preparation of for cell division occurs
Interphase
36
In which phase mitotic apparatus formation occurs
Prophase
37
Maximum comparative or relative growth occursi in🔥
G1 phase
38
Centromeres are facing towards poles and arms are trailing behind It is the characteristic of which phase
anaphase
39
When cell goes from G1 to G2 then
common- chromosome number double -DNA amount
40
Disappearance of cell organelle takes place due to increased viscosity of cytoplasm during metaphase
f
41
Select the wrong statement about Kinetochore
none
42
Which of the following is true about cell cycle
all of the above
43
Which phase is represented in diagram
telophase
44
The correct sequence of stages in cell cycle is A) G1,S,G2,M B)G1, G2,S,M C)M,S,G1, G2 D)G1, G2,M,S
a
45
Chromatin consists of
all of the above
46
In which phase disappearance of cell organelles occurs
Prophase
47
Which phase is represented in diagram
early prophase
48
Chromosomes are clearly visible in which phase of cell cycle
metaphase
49
Which phase of cell cycle decide that the cell will enter into cell cycle or not
G1 phase
50
Pre replicative phase is
G1 phase
51
In which phase disintegration of nuclear membrane begins
Prophase
52
The phase which is present between two and Mphase
t
53
A: cell enters into cell cycle R: existing nucleus fail to control the activity of entire nucleus
3
54
In which phase decondensation of chromatin occurs
Telophase
55
Which phase is represented in diagram
interphase
56
Which is the best stage to see morphology of chromosome
metaphase
57
End of Prophase is marked by🏹🏹
Disappearance of ER, GB, nucleolus and nuclear envelope
58
A typical cell has amount of chromosome X and amount of DNA 2C then amount of DNA in G2 phase, S phase & G1 phase respectively
4C,4C,2C
59
Duplication of maximum cell organelles occurs in
G1 phase
60
Duplication of centrosome or centriole in cytoplasm occurs in which phase
S phase
61
After which phase of cell will enter into cell division
G2 phase
62
Cell with constant amount of DNA in cell cycle is in ____phase
G1& G2 phase
63
A: different cells have different dividing capacities R: cell cycle is under genetic control
1
64
Post replicative phase is
G2 phase
65
Which phase is represented in diagram
anaphase
66
Preparation of enzyme which are required for replication occurs in
G1 phase
67
A typical cell has no of chromosome X and amount of DNA 2C then no of chromosome in G2 phase, S phase & G1 phase respectively
X,X,X
68
Which phase is represented in diagram
metaphase
69
In which phase astral rays formation occurs
Prophase
70
Middle mein mil gaye
metaphase
71
In which phase reintegration of nuclear membrane occurs
Telophase