Can someone do this. I will give brainlist!!

Guanine(G) pairs with Cytosine(C) through a triple hydrogen bond

Adenine(A) pairs with Thymine(T) in DNA, but in this case Uracil(U) because we have a RNA strand therefore:

1.Cytosine

2.Uracil

3.Adenine

4.Guanine

the answer to this predicament is false, by friend, i had this on a quiz, and i got it wrong, so i learned it, cos i was gonna have it on a test, and i got it right

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.