What are the components of a nucleotide?
A. A nucleus
B. A phosphate group
C. A nitrogenous base
D. A 5-carbon sugar
E. B, C, and D
2007-07-31 03:20:35 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Biology
A nucleotide is composed of a nitrogenous base (purine or pyrimidine), a pentose sugar and a phosphate. So the answer is E.
2007-07-31 03:27:56 · answer #1 · answered by N E 7 · 0⤊ 1⤋
Choice E.
A nucleotide is a monomer (repeating unit) that makes up a strand of DNA. Each nucleotide has a nitrogenous base (adenine, cytosine, guanine, or thymine) that helps to make up the genetic code. The base is connected to a 5-carbon sugar (sometimes called a pentose sugar), which connects to a phosphate group (phosphorous surrounded by hydrogens). The phosphate group can be attached to the 5-carbon sugar of another nucleotide, connecting multiple nucleotides.
2007-07-31 05:29:07 · answer #2 · answered by x 5 · 1⤊ 0⤋
E. B, C, and D, because
"A nucleotide is a chemical compound that consists of 3 portions: a heterocyclic base, a sugar, and one or more phosphate groups. In the most common nucleotides the base is a derivative of purine or pyrimidine, and the sugar is the pentose (five-carbon sugar) deoxyribose or ribose. Nucleotides are the monomers of nucleic acids, with three or more bonding together in order to form a nucleic acid."
2007-07-31 04:42:38 · answer #3 · answered by kt 7 · 1⤊ 1⤋
the answer is E
A nucleotide is a chemical compound that consists of 3 portions: a heterocyclic base (your C), a sugar (your D), and one or more phosphate groups (your B). In the most common nucleotides the base is a derivative of purine or pyrimidine (these contain nitrogen), and the sugar is the pentose (five-carbon sugar) deoxyribose or ribose. Nucleotides are the monomers of nucleic acids, with three or more bonding together in order to form a nucleic acid.
2007-07-31 03:29:53 · answer #4 · answered by flyingsharks83 3 · 1⤊ 1⤋
Neither ribose nor uracil are present in DNA. These are present only in RNA. The backbone of a polynucleotide chain of DNA alternates deoxyribose and phosphate, so removing either of those would clearly break the chain. The nucleobase (which in terms of the list above would be thymine for DNA or Uracil for RNA) is not directly connected to any part of any adjacent nucleotide in a single stranded chain, so it could theoretically be removed and preserve the sugar phosphate backbone of the chain. Although the chain would no longer be considered a polynucleotide unless it was replaced by another nucleobase.
2016-05-18 22:43:44 · answer #5 · answered by arlette 3 · 0⤊ 0⤋
The answer is E : 5 carbon sugar,nitrogenous ring and a phosphate group all together attached. you can explore more in : http://en.wikipedia.org/wiki/Nucleic_acid
2007-07-31 03:27:39 · answer #6 · answered by kasoker 1 · 1⤊ 1⤋
The answer is E
2007-07-31 03:26:52 · answer #7 · answered by Southpaw 5 · 1⤊ 1⤋
the answer is E.
2007-07-31 05:26:51 · answer #8 · answered by Anonymous · 1⤊ 0⤋
E
2007-07-31 07:06:18 · answer #9 · answered by Anonymous · 1⤊ 0⤋