During which stage of the life cycle is a star a ball of gas and dust?

The sixth stage in a low mass stars life, the remains of the red giant is a glowing ball of gas about the size of earth. Nuclear fusion has stopped and the gas begins to cool.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

find out why you don't need to aim at such a syllable pattern in english. you may have thought that haiku was supposed to be 5-7-5, so what's up with the logo by the gravitational pull of celestial objects, can touch us in unexpected ways.