I will help you narrow it down, because I am not sure how many vitamins you can obtain from unenriched rice, but I do no that any time you would have a deficiency in vitamins, it would be because of not eating enough food that contains certain vitamins in general. So it's between B and C, I am leaning towards B.
It would be the x-chromosome only, I believe.
Answer:
The DNA is packed into chromosomes. The DNA replication is the same as mitosis. And after the DNA is replicated, the homologous will double, and now each chromosome now has a homologous pair
Explanation:
DNA stands for deoxyribonucleic acid. RNA stands for ribonucleic acid. Both RNA and DNA contain Adenine, Cytosine, and Guanine. However, DNA's nitrogenous base is Thymine while RNA's nitrogenous base is Uracil.