The suns inner core is hottest part of sun

The core is the part of the star that generates all the heat, therefore the suns inner core is hottest part of sun

The sun inner core is the hottest part

Explanation:

the Sun's core can get as hot as 30 million degrees F. The photosphere, which is outside the core, is the coolest layer

One hypothesis would be "The inheritance of one trait does not affect the inheritance of another trait".

It can be explained with the help of law of independent assortment.

It states that the genes are randomly distributed in the gametes, that is, independent of each other.

Experimentally it can be tested with the help of dihybrid cross.