A haploid is half of a parent cell.
I believe that the answer is A, if I am not mistaken!
update >:(
never mind. after an hour of work in the hopes of some points, a moderator deleted my answer. how fun for me.
in all honesty i understand why though
If you have both parents with long ears and some of the offsprings have short ears, you can say both parents are heterozygous for this. Both have a dominant (long ear), and a recessive allele (short ear).
To prove this, you can draw a Punnett square, and you'll see the probabilities of the offsprings.
The role of the nucleolus is to make the monomer of of ribosomes, and ribosomes are used in mRNA to make protein. Therefore the nucleolus plays a major role in the process of making proteins for our body. <span />
