which nucleic acid base is found in dna but not rna? course hero

What are the key points of nucleic acids?

Three of the nitrogenous bases are found in both DNA and RNA: adenine, guanine, and cytosine. In addition, DNA contains the nitrogenous base thymine, while RNA contains the base uracil. The nitrogenous bases fall into two categories: purines and pyrimidines.

What is the structure of nucleic acids?

Jan 30, 2014 · The nitrogenous base that is only found in RNA and not DNA is: A.guanine B.adenine C.uracil D.cytosine E.thymine. C. uracil. 33. A nucleic acid contains uracil, allowing you to conclude that:A. this nucleic acid is DNA. B. this nucleic acid is RNA. C. this nucleic acid could be either DNA or RNA. B.

What are the two types of nucleic acids?

A major difference between DNA and RNA is that DNA contains thymine, but not uracil, while RNA contains uracil but not thymine. The other three heterocyclic amines, adenine, guanine, and cytosine are found in both DNA and RNA.

What type of nucleic acids do humans have in their bodies?

The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material found in all living organisms, ranging from single-celled bacteria to multicellular mammals. The other type of nucleic acid, RNA, is mostly involved in protein synthesis. The DNA molecules never leave the nucleus, but instead use an RNA intermediary to …

Which base can only be found in DNA not RNA?

⇒ Thymine is present in DNA but not in RNA.

What nucleic acid is not in RNA?

Where DNA has thymine, RNA has uracil. So the structural component that is found in DNA but not in RNA is thymine.May 29, 2018

Which nitrogenous base is found in RNA and not DNA?

UracilUracil is a nitrogenous base that is only found in single-stranded RNA—it is not found in DNA. Thymine pairs with adenine in DNA, whereas in RNA, uracil pairs with adenine.

What nucleic acids are only in DNA?

While the nitrogenous bases adenine, guanine, and cytosine are identified in both DNA and RNA, thymine is found only in DNA, and uracil is found only in RNA [24]. The nucleic acids are large; for instance, the human 18 ribosomal RNA (rRNA) has a molecular weight of 6.4 × 105 Da and contains 1868 nucleotides.

What base is found in DNA but not in RNA Brainly?

Answer. Answer: Uracil is a base present in DNA but not in RNA.May 11, 2020

Which base is found in DNA but not in RNA quizlet?

Terms in this set (15) The correct answer is Uracil. Uracil is one of the four nitrogenous bases found in RNA. The other three nitrogenous bases in RNA are also found in DNA, but uracil is not found in DNA.

What nitrogenous base is found in RNA but not in RNA?

UracilUracil. Uracil is present in RNA and binds to adenine whereas thymine is present in DNA and binds to adenine.

Which nitrogen base will not be found in RNA?

The correct answer is: Thymine.

Is DNA and RNA an acid?

Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells. They play an especially important role in directing protein synthesis. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Why DNA and RNA are called nucleic acids?

The name "nucleic acid" comes from the fact that they were first described because they actually had acidic properties, much like the acids that you know. And the nucleic part comes from the fact that they were first isolated because they were found in the nucleus.

Is RNA A nucleic acid?

RNA, or ribonucleic acid, is a nucleic acid that is similar in structure to DNA but different in subtle ways. The cell uses RNA for a number of different tasks, one of which is called messenger RNA, or mRNA.

How are nitrogenous bases bound?

The nitrogenous bases are stacked in the interior, like the steps of a staircase, and these bases pair; the pairs are bound to each other by hydrogen bonds. The bases pair in such a way that the distance between the backbones of the two strands is the same all along the molecule.

What are the components of a nucleotide?

Figure 2. A nucleotide is made up of three components: a nitrogenous base, a pentose sugar, and a phosphate group. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material found in all living organisms, ranging from single-celled bacteria to multicellular mammals.

What is the difference between DNA and guanine?

There is only one type of DNA. DNA is the heritable information that is passed along to each generation of cells; its strands can be “unzipped” with small amount of energy when DNA needs to replicate , and DNA is transcribed into RNA.

What is the double helix?

The two strands are bonded to each other at their bases with hydrogen bonds, and the strands coil about each other along their length , hence the “double helix” description, which means a double spiral. The alternating sugar and phosphate groups lie on the outside of each strand, forming the backbone of the DNA.

What is messenger RNA?

RNA is involved in protein synthesis and its regulation. Messenger RNA (mRNA) is copied from the DNA, is exported from the nucleus to the cytoplasm, and contains information for the construction of proteins.

Which part of the ribosome is responsible for protein synthesis?

Ribosomal RNA (rRNA) is a part of the ribosomes at the site of protein synthesis, whereas transfer RNA (tRNA) carries the amino acid to the site of protein synthesis. microRNA regulates the use of mRNA for protein synthesis.

Does DNA leave the nucleus?

The DNA molecules never leave the nucleus, but instead use an RNA intermediary to communicate with the rest of the cell. Other types of RNA are also involved in protein synthesis and its regulation. DNA and RNA are made up of monomers known as nucleotides.

What are the four nitrogen bases in DNA?

Each nucleotide in DNA contains one of four possible nitrogenous bases: adenine (A), guanine (G) cytosine (C), and thymine (T). Adenine and guanine are classified as purines. The primary structure of a purine consists of two carbon-nitrogen rings. Cytosine, thymine, and uracil are classified as pyrimidines which have a single carbon-nitrogen ring ...

Why are nitrogenous bases called nitrogenous bases?

They are bases because they contain an amino group that has the potential of binding an extra hydrogen, and thus, decreasing the hydrogen ion concentration in its environment, making it more basic. Each nucleotide in DNA contains one of four possible nitrogenous bases: adenine (A), guanine (G) cytosine (C), and thymine (T).

What is the difference between pentose sugar and RNA sugar?

The pentose sugar in DNA is deoxyribose and in RNA it is ribose. The difference between the sugars is the presence of the hydroxyl group on the second carbon of the ribose and hydrogen on the second carbon of the deoxyribose. The carbon atoms of the sugar molecule are numbered as 1′, 2′, 3′, 4′, and 5′ (1′ is read as “one prime”).

Why are the two strands of a helix antiparallel?

The two strands of the helix run in opposite directions. This antiparallel orientation is important to DNA replication and in many nucleic acid interactions. Antiparallel Strands: In a double stranded DNA molecule, the two strands run antiparallel to one another so one is upside down compared to the other.

What are the components of DNA and RNA?

The nucleotides combine with each other to form a polynucleotide: DNA or RNA. Each nucleotide is made up of three components: a nitrogenous base. a pentose (five-carbon) sugar. a phosphate group.

What is the monomer of DNA?

nucleotide: the monomer comprising DNA or RNA molecules; consists of a nitrogenous heterocyclic base that can be a purine or pyrimidine, a five-carbon pentose sugar, and a phosphate group. genome: the cell’s complete genetic information packaged as a double-stranded DNA molecule.

Where is the base of a polynucleotide?

When a polynucleotide is formed, the 5′ phosphate of the incoming nucleotide attaches to the 3′ hydroxyl group at the end of the growing chain. Two types of pentose are found in nucleotides, deoxyribose (found in DNA) and ribose (found in RNA).