Nucleotides contain sugar, a phosphate group, and a nitrogen base. Which of the following is a nitrogen base?
ribose
Tyrosine
Deoxyribose
Guanine
Ah, let me entertain you with my answer! Out of the options you've given, the nitrogen base is Guanine. But watch out, this nitrogen base isn't just any regular base - it's seriously elemental! So, think of Guanine as the nitrogen base that adds some flair to those nucleotides. Keep up the great work, you're doing nitrogen-ous!
To determine which of the following is a nitrogen base, let's first understand what a nitrogen base is.
A nitrogen base is one of the components of a nucleotide, which is the building block of DNA and RNA. Nitrogen bases are organic molecules that contain nitrogen atoms and are responsible for carrying the genetic information in DNA and RNA. There are four types of nitrogen bases: adenine (A), thymine (T), cytosine (C), and guanine (G). In RNA, the base thymine is replaced by uracil (U).
Now, let's look at the options given:
1. Ribose: Ribose is a type of sugar and is not a nitrogen base.
2. Tyrosine: Tyrosine is an amino acid, not a nitrogen base.
3. Deoxyribose: Deoxyribose is a type of sugar and also not a nitrogen base.
4. Guanine: Guanine is a nitrogen base and one of the four bases found in DNA and RNA. It pairs with cytosine in DNA or with cytosine or uracil in RNA.
Therefore, the correct answer is Guanine.