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DNA

DNA

DNA is the source of our genetic material, and plays a central role in transmission of characteristics from parent to offspring. DNA stands for deoxyribonucleic acid.

Top Questions Asked on ChaCha.com for DNA

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  1. Why does DNA replication need to occur?

    The DNA replication, (and also the replication of all the oth...

  2. Where is DNA found in a cell?

    Most of the DNA is found in the nucleus (chromosomal DNA); bu...

  3. What is the importance me the cell's ability to copy a single DNA sequence into RNA?

    It makes it possible for a single gene to produce large numbe...

  4. What kind of nucleotide pair bonds would be found in a DNA molecule?

    Base pairs (nucleotide) for DNA are cytosine & guanine (C & G...

  5. Where is DNA found?

    DNA is found throughout the body-in cells, within the cell - ...

  1. What is the importance me the cell's ability to copy a single DNA sequence into RNA?

    It makes it possible for a single gene to produce large numbe...

  2. What is DNA replication?

    Transcription, or RNA synthesis, is the process of creating a...

  3. What are the base pairing rules and how do they relate to Chargaff's research on DNA?

    # A with T: the purine adenine (A) always pairs with the pyri...

  4. Where And In What Form Is Eukaryotic Dna Found?

    It is now clear that eukaryotic cells have more than a dozen ...

  5. Why does DNA replication need to occur?

    The DNA replication, (and also the replication of all the oth...

  1. What is a lagging strand of DNA?

    A lagging strand of DNA is synthesized in approx 1000 piece n...

  2. How does base pairing differ in RNA and DNA?

    A.T and G.C base pairs, is incorporated into duplex DNA and R...

  3. What two processes during DNA replication must occur before the two strands of DNA molecule can separate?

    Transcription and translation are the two processes which mus...

  4. Where is DNA found in a cell?

    Most of the DNA is found in the nucleus (chromosomal DNA); bu...

  5. How do you replicate DNA in to DNA molecules?

    DNA replication begins with the "unzipping" of the parent mol...

Top Questions Asked on ChaCha Mobile for DNA

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  1. What is the difference between a RNA and DNA?

    DNA contains thymine, but not uracil, while RNA contains urac...

  2. Where is DNA found?

    DNA is found throughout the body-in cells, within the cell - ...

  3. How does DNA hold information?

    There are four symbols (chemical compounds) in the DNA code. ...

  4. What is a nucleotide found in DNA?

    Nucleotides are little components that make up DNA, and they ...

  5. What do the letters dna stand for?

    DNA stands for DeoxyriboNucleic Acid. It is the genetic mater...

  1. What is the difference between a RNA and DNA?

    DNA contains thymine, but not uracil, while RNA contains urac...

  2. What do the letters dna stand for?

    DNA stands for DeoxyriboNucleic Acid. It is the genetic mater...

  3. How is rna different from dna?

    RNA transmits genetic information from DNA to the cytoplasm &...

  4. What sugar is found in DNA?

    Ribose is found in RNA and Deoxyribose is found in DNA.

  5. What is a nucleotide found in DNA?

    Nucleotides are little components that make up DNA, and they ...

  1. What makes up steps of DNA molecule?

    Each spiraling strand of DNA is comprised of a sugar-phosphat...

  2. DNA can be found in what two organelles?

    DNA can be found in mitochondria and chloroplasts. Thanks!

  3. Who does dna testing in columbia sc?

    AnyLabTestNow does DNA testing at website: www.anylabtestnow....

  4. How does base pairing differ in RNA and DNA?

    A.T and G.C base pairs, is incorporated into duplex DNA and R...

  5. What are the two purines of DNA?

    Adenine and Guanine are the two purines. You can remember thi...

About DNA

DNA, also called deoxyribonucleic acid is a nucleic acid that is the main constituent of the chromosomes of all organisms (except some viruses). The DNA molecule consists of two polynucleotide chains that are in the form of a double helix, they contain phosphate and the sugar deoxyribose and are linked by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine.

DNA is self replicating and it plays a central role in protein synthesis. It is responsible for the transmission of hereditary characteristics from parents to offspring and it carries genetic information that is copied when a cell divides.

DNA acts in three important ways:

When a cell divides, the DNA uncoils, and each strand creates a new partner from the surrounding material, this process is called replication. The two cells that result from the cell division have the same DNA as the original.
In sexual reproduction, each parent contributes one of the two strands in the DNA of the offspring.
Inside the cell, the DNA governs the production of proteins and other molecules essential to cell function.

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