SCIENCE
BOTANY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Metaphase I
|
|
|
Anaphase II
|
|
|
Prophase I
|
|
|
Prophase II
|
Detailed explanation-1: -During gamete formation, the enzyme recombinase participates during pachytene stage of prophase I. This stage is characterised by the appearance of recombination nodules, the sites at which crossing over occurs between non-sister chromatids of the homologous chromosomes.
Detailed explanation-2: -During the pachytene stage of Prophase I, there is an appearance of the recombination nodules where non-sister chromatids of homologous chromosomes cross over. Crossing over is an enzyme-mediated process and the enzyme involved is called recombinase.
Detailed explanation-3: -Hint: The enzyme recombinase helps in recombination of genes between homologous chromosomes. This process is called crossing over. It takes place in the prophase-1 of meiosis.
Detailed explanation-4: -So, the correct answer is ‘Formation of synaptonemal complex.
Detailed explanation-5: -So, the correct answer is Pachytene.