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Byju's Answer
Standard XII
Biology
Microsporogenesis
What are zygo...
Question
What are zygotene, deplotene, pachytene and leptotene
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Solution
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Similar questions
Q.
Pick out the item which has sequential arrangements.
a) Zygotene
→
Leptotene
→
Pachytene
→
Diplotene
→
Diakinesis.
b) Diakinesis
→
Zygotene
→
Leptotene
→
Pachytene
→
Diplotene
c) Leptotene
→
Zygotene
→
Pachytene
→
Diplotene
→
Diakinesis.
Q.
Pick out the item which has sequential arrangement.
i)
Z
y
g
o
t
e
n
e
→
L
e
p
t
o
t
e
n
e
→
P
a
c
h
y
t
e
n
e
→
D
i
p
l
o
t
e
n
e
→
D
i
a
k
i
n
e
s
i
s
.
ii)
D
i
a
k
i
n
e
s
i
s
→
Z
y
g
o
t
e
n
e
→
L
e
p
t
o
t
e
n
e
→
P
a
c
h
y
t
e
n
e
→
D
i
p
l
o
t
e
n
e
.
iii)
L
e
p
t
o
t
e
n
e
→
Z
y
g
o
t
e
n
e
→
P
a
c
h
y
t
e
n
e
→
D
i
p
l
o
t
e
n
e
→
D
i
a
k
i
n
e
s
i
s
.
Q.
Arrange the following events of meiosis I in the correct order:
(i) Diplotene
(ii) Pachytene
(iii) Zygotene
(iv) Diakinesis
(v) Leptotene
Q.
Prophase of the first meiotic division is typically longer and complex. It is subdivided into
5
phases: leptotene, zygotene, pachytene, diplotene and diakinesis. Which of the following statements is not correct of these phases?
Q.
Match the following:
Column I
Column II
A
Leptotene
1
Terminalisation of chiasmata
B
Zygotene
2
Dissolution of the synaptonemal complex
C
Pachytene
3
Crossing over takes place
D
Diplotene
4
Formation of synaptonemal complex
E
Diakinesis
5
Condensation of chromosome
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