SCIENCE
BOTANY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Arrange the following events of meiosis in correct sequen (i) Crossing ove(ii) Synapsis (iii) Terminalisation of chiasmata (iv) Disappearance of nucleolus
|
|
a) (i), (ii), (iii), (iv)
|
|
|
|
|
|
c) (ii), (i), (iv), (iii)
|
|
|
d) (ii), (i), (iii), (iv)
|
Explanation:
Detailed explanation-1: -The correct sequence is: Synapsis → Crossing over → Disjunction of genomes → Terminalization. Q.
Detailed explanation-2: -Crossing over occurs only during prophase I. The complex that temporarily forms between homologous chromosomes is only present in prophase I, making this the only opportunity the cell has to move DNA segments between the homologous pair.
Detailed explanation-3: -The correct sequence of events of meiosis are synapsis (in zygotene) →crossing over (in pachytene)→terminalisation of chiasmata (in diplotene)→disappearance of nucleolus (in diakinesis).
There is 1 question to complete.