Meaning of Dyad of cells and chiasmata in meiosis

Q. In which phase of meiosis are the following formed? Choose the answers from hint points given below.

a. Synaptonemal complex __________
b. Recombination nodules __________
c. Appearance/ activation of __________ enzyme recombinase
d. Termination of chiasmata __________
e. Interkinesis __________
f. Formation of dyad of cells __________

Hints :
1) Zygotene, 2) Pachytene, 3) Pachytene, 4) Diakinesis, 5) After Telophase-I/ before Meiosis-II, 6) Telophase-I/ After Meiosis-I.

Q.
Chiasmata are formed during meiosis

Q. Chiasmata is (i)___________ and it is formed during the (ii)___________ stage of meiosis.

Q. Arrange the following events that happen during meiosis in the correct order of occurrence:

1. Formation of a dyad of cells
2. Separation of sister chromatids and migration towards the opposite poles
3. Separation of homologous chromosomes and migration towards the opposite poles
4. Formation of four haploid cells

Q. At which stage of meiosis I, the homologous chromosomes separate but are held by chiasmata