A nucleic acid
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DNA hybridisation is where DNA is compared from different species to determine how closely species are related
Deoxyribonucleic Acid DNA is a nucleic acid polymer consisting of two long backbones, with nitrogenous bases connecting them (imagine a ladder). This structure is then twisted into a double helix.
The two back bones are composed of a pentose sugar (namely deoxyribose) with the nitrogenous bases facing inwards and connected to each other via hydrogen bonding. The sugars are in turn connected together by phosphate groups with phosphodiester bonds.
The function of DNA is long-term information storage. A brief synopsis is that DNA is used as a template to make mRNA (transcription) which directs the assembly of a protein in a ribosome (translation).
DNA must be replicated during cell reproduction, as each daughter cell resulting in mitosis will require a full genome. DNA replication is a nearly exact process, with error rates less than one-in-a-billion. This is due to the nitrogenous bases, which is where the information is stored. Four bases exist in DNA: adenine, guanine, cytosine and thymine (A,T,C and G). Remember the two legs of a ladder running anti-parallel to each other, with bases facing inwards. Each base is connected to the one across from it via relatively weak hydrogen bonding. This bonding however, allows the DNA to be replicated with remarkable exactness as A can only bond with T and C can only bond with G. As such, when DNA Polymerase enzymes polymerize a new strand of DNA, they "know" which order to put the bases in, thus conserving information. This is known as the "semi-conservative" model of DNA Replication.
Definition:
The official definition of the word DNA is "deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information."
Is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.
Hope it helps ^^
DNA stands for Deoxyribonucleic acid. DNA are molecules that carry genetic information in living organisms to include humans and animals.
Dna Is genetic/traits passed down from one person to another for
eg. Brown hair-Dna , Blue Eyes-Dna, Red skin-Dna.
Chimeras. In genetic engineering, molecules of combined DNA are known as chimeras because they are produced by combining DNA from different species. Combined DNA is also known as recombinant DNA, since DNA from 2 sources has been recombined to produce it.
The enzyme that is used to bind DNA fragments together is DNA ligase. Using DNA ligase to join DNA fragments is the last step in the production of a recombinant DNA plasmid.
DNA polymerase III DNA polymerase I DNA Ligase DNA Helicase
In DNA replication, DNA polymerase III is the enzyme which joins the DNA nucleotides together via phospodiester bonds.DNA Ligase is the enzyme that seals gaps in DNA during DNA Replication.DNA Ligase is the enzyme that seals gaps in DNA during DNA Replication.
They are completely different processes in the central dogma. DNA replication is the replication of DNA into DNA by DNA polymerases. Trancription is the transcription of DNA into RNA by RNA polymerase.
by DNA fingerprinting method , DNA-DNA hybirdization or DNA sequencing. to know the sequence of DNA
DNA fingerprinting
DNA is DNA it can not be changed.
DNA Polymerase.
Chimeras. In genetic engineering, molecules of combined DNA are known as chimeras because they are produced by combining DNA from different species. Combined DNA is also known as recombinant DNA, since DNA from 2 sources has been recombined to produce it.
The enzyme that is used to bind DNA fragments together is DNA ligase. Using DNA ligase to join DNA fragments is the last step in the production of a recombinant DNA plasmid.
DNA Helicase unwinds and unzips the DNA. It separates the two strands of DNA so DNA replication can occur.
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IT can be called * DNA duplication * DNA reproduction * DNA imitation
It is how the DNA is constructed.
DNA synthesis or DNA replication
genes are in DNA