Table of Contents
Does RNA use the base thymine?
Figure 3: DNA (top) includes thymine (red); in RNA (bottom), thymine is replaced with uracil (yellow). Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA.
Does DNA or RNA use thymine?
RNA is very similar to DNA, but differs in a few important structural details: RNA is single stranded, while DNA is double stranded. Also, RNA nucleotides contain ribose sugars while DNA contains deoxyribose and RNA uses predominantly uracil instead of thymine present in DNA.
What bases do DNA and RNA use and how do they pair up?
Bases. The four bases that make up this code are adenine (A), thymine (T), guanine (G) and cytosine (C). Bases pair off together in a double helix structure, these pairs being A and T, and C and G. RNA doesn’t contain thymine bases, replacing them with uracil bases (U), which pair to adenine1.
Does RNA have guanine cytosine and adenine?
RNA consists of four nitrogenous bases: adenine, cytosine, uracil, and guanine. Uracil is a pyrimidine that is structurally similar to the thymine, another pyrimidine that is found in DNA. Like thymine, uracil can base-pair with adenine (Figure 2).
How does adenine pair with thymine in RNA?
A) Adenine pairs with thymine in both DNA and RNA. B) Adenine pairs with uracil in DNA and with thymine in RNA. C) Adenine pairs with thymine in DNA and with uracil in RNA. D) Adenine pairs with cytosine in DNA and with guanine in RNA. E) Adenine pairs with guanine in DNA and with cytosine in RNA.
Which is larger adenine or guanine in RNA?
In DNA, there are four different bases: adenine (A) and guanine (G) are the larger purines. Cytosine (C) and thymine (T) are the smaller pyrimidines. Three of these are the same as in DNA: adenine, guanine, and cytosine. RNA contains uracil (U) instead of thymine (T).
What are the bases of DNA and RNA?
Bases in RNA include adenine, cytosine, guanine and thymine. DNA bases include adenine, cytosine, guanine and uracil. Bases in DNA include adenine, cytosine, guanine and thymine. RNA bases include adenine, cytosine, guanine, and uracil. Only purines are found in DNA and only pyrimidines are found in RNA.
Which is correct about complementary base pairing of adenine in DNA and RNA?
D) contains information that controls an organism’s traits. Which of the following CORRECTLY describes the complementary base pairing of adenine in both DNA and RNA? A) Adenine pairs with thymine in both DNA and RNA. B) Adenine pairs with uracil in DNA and with thymine in RNA. C) Adenine pairs with thymine in DNA and with uracil in RNA.