How Teacher Retirement System Pension and Social Security Benefits Work Together. If youâre a teacher, youâve probably seen lots of conflicting information on this topic. Thereâs no denying that itâs a complex issue, so hereâs a closer look at the rules on Social Security for teachers.
Uracil. There are five bases in RNA/DNA. They are Adenine, Thymine, Guanine, Cytosine and Uracil. In DNA: Adenine pairs with Thymine, and Guanine pairs with Cytosine In R â¦ NA: Adenine pairs with Uracil and Guanine pairs with Cytosine. + 10 others found this useful.
Answer: Hydrogen bonding, which holds the two DNA strands together, determines which nucleotides will form complementary base-pairs. Adenine is able to form two hydrogen bonds and so it lines up with thymine, which is also able to form two hydrogen bonds. Cytosine, which is a smaller nucleotide like thymine, does not base-pair with adenine because their hydrogen-bonding atoms would not line up correctly. Likewise, guanine is able to form three hydrogen bonds and so it lines up with cytosine. which is also able to form three hydrogen bonds.