Answer:
Homologous Chromosomes (tetrad)
Explanation:
Sister chromatids remain attached at that time.
It gets its nourishment from its mother. The human embryo is connected to its mother by a placenta through which materials are passed.
1) Independent assortment during metaphase I /anaphase I
<span>2) Crossing over during prophase I
3.) </span><span>Random mutation during replication
( I gave you three ways).</span>
