A. AA
Homozygous goes to the letter Dominate goes to the upper case
A group of organs that work together to perform a common function is an organ system
We know that height in humans is a polygenic trait because it has a lot of variation. The height gene is controlled by at minimum three genes with six different alleles. If all of these alleles are dominant for the tall gene you will be tall if you are dominant for the short gene you will be short if there is no clear dominance between the two genes you will fall somewhere in the middle.
Well if you were to ask me 1 is that sporulation can make lots of more plants but i dont know any disadvntages