In which of the following stages is the chromosome thin and like a long thread?

What is each pair of homologous chromosomes called?

Identify the figure:

In the $Anaphase-II$ stage,.........

In oocytes,which stage can last for months or years,since at this stage the chromosomes decondense and are engaged in $RNA$ synthesis?

In meiosis,the nuclear envelope and nucleolus disappear during which phase?