Nuclear envelope forms at each pole spindle dissolves chromosomes uncoil. True or False

True.

Explanation:

There are four phases which occur during karyokinesis, these are -

Prophase Metaphase Anaphase Telophase

Telophase is the last phase of karyokinesis. The main events that occur during telophase are-

Uncoiling of chromosome occurs Chromatin is formed Spindle breaks down Nuclear membrane or nuclear envelope if reformed

Thus it is clear that the events that are mentioned in the question denote truly about the Telophase.