There are many answers to this but I can narrow it down to two.
Wilhelm Roux was the one who officially speculated that the chromosomes was the carriers of inheritance.
BUT proving it is another story
Thomas Hunt Morgan showed that genes reside in specific chromosomes. He was able to map the fruit fly's chromosomal map.
Answer:
d. A purine base forms hydrogen bonds to pair with a pyrimidine base located on the opposite DNA strand. Specifically, A pairs with T, and C pairs with G.
Explanation:
A product in this particular chemical reaction is oxygen and ot is the one denoted by O2
I love texting the unknown
Answer:
it is a cell membrane (d)
Hope this helps!!!