What is DNA copying? State its importance.

Education Journalist | Study Abroad Lead

DNA copying, known as DNA replication, is the process of producing two identical DNA copies during cell division from an original DNA molecule.

It helps in generating variations during sexual reproduction leading to evolution.
DNA copying also helps to transfer characteristics or information from parents to the offspring.
DNA is formed of a double helix structure that has 2 complementary strands.
During DNA copying, the 2 complementary strands get separated.
RNA is involved in the process of replication. DNA copying in the eukaryotic cells occurs in the S phase of the cell cycle.

DNA Copying

Importance of DNA Copying

DNA Copying or Replications is important as –

DNA Replication helps in the transmission of traits from parents to their children.
It ensures that the daughter cell produced as a result of cell division receives an identical DNA amount.
It leads to evolution by producing variety in sexual reproduction.

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Related Topics
Difference between Replication and Transcription	DNA Polymerases	DNA Genetic Material
Molecular Basis of Inheritance	Stages of Transcription	Difference between DNA and RNA
Packaging of DNA	Genetics and Evolution	DNA Fingerprinting

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What is DNA copying? State its importance.

Importance of DNA Copying

CBSE CLASS XII Related Questions

1.
Draw the structure of an antibody molecule and label any four of its parts.

2.
Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

3.
Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

4.
Explain the different organizational levels of biodiversity at the genetic, species, and ecological levels, providing a suitable example for each category.

5.
Mention the source and the role of the following in providing defence against infection in the human body : (I) Histamine (II) Interferons

6.
Differentiate between active and passive immunity. Write any three differences.

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What is DNA copying? State its importance.

Importance of DNA Copying

CBSE CLASS XII Related Questions

1.Draw the structure of an antibody molecule and label any four of its parts.

2.Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

3.Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

4.Explain the different organizational levels of biodiversity at the genetic, species, and ecological levels, providing a suitable example for each category.

5.Mention the source and the role of the following in providing defence against infection in the human body : (I) Histamine (II) Interferons

6.Differentiate between active and passive immunity. Write any three differences.

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Draw the structure of an antibody molecule and label any four of its parts.

2.
Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

3.
Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

4.
Explain the different organizational levels of biodiversity at the genetic, species, and ecological levels, providing a suitable example for each category.

5.
Mention the source and the role of the following in providing defence against infection in the human body : (I) Histamine (II) Interferons

6.
Differentiate between active and passive immunity. Write any three differences.