Th nitrogen bases for DNA are: thymine (T), guanine (G), cytosine (C) and adenine (A). For RNA they are adenine, guanine, cytosine and uracil (U).
DNA base pairing is highly specific: T pairs with A (T-A) and G pairs with C (G-C).
RNA base pairing is not as specific, but can be said to occur like so: U pairing with A (U-A) and G pairing with C.
In DNA, adenine pairs with thymine, and guanine pairs with cytosine. In RNA, adenine pairs with uracil, and guanine pairs with cytosine.
hydrogen bonds
complmentary
Thymine is not present in RNA, only in DNA. The base pairs for RNA are adenine & uracil, and guanine & cytosine. Uracil replaces Thymine in RNA.
Thymine nitrogen base is complementary to Adenine.
In DNA thymine is one of the nitrogen bases, but in RNA uracil replaces thymine still leaving four nitrogen bases
hydrogen bonds
Nitrogen bases attach to deoxyribose sugar, in nucleotides.
In DNA, the nitrogen base adenine (A) pairs with the nitrogen base thymine (T), and the nitrogen base cytosine (C) pairs with the nitrogen base guanine (G). So the base pairs are A:T and C:G. One way to remember is that A:T spells the word "at."
Complementary Base- pairs
complmentary
It means which nitrogen base pairs with the other Nitrogen bases: A-t T-a C-g G-c
I Believe the answer is sequence of nitrogen bases. 70 Year old woman in 5th Grade , i think i know this.
Complementary nitrogen bases pair by means of hydrogen bonds. Refer to the related link below for an illustration.
Hydrogen bonds hold the nitrogenous base pairs together.
Adenine( A), Thymine( T), Guanine( G), Cytosine(C)
In DNA the nitrogen bases are either purines or pyrimidines.Adenine (A) and guanine (G) are purines, and thymine (T) and cytosine (C) are pyrimidines.A pairs with T on the complementary strand, and G with C.In RNA, A pairs with U (uracil). U is specific for RNA, and T is found only in DNA.-------------If you have the same crossword puzzle homework as I do, the specific answer is:BASE PAIRS
Thymine is not present in RNA, only in DNA. The base pairs for RNA are adenine & uracil, and guanine & cytosine. Uracil replaces Thymine in RNA.