Meaning: [ˌdiːenˈeɪ] n. (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information. ... 3) DNA is stored in the nucleus of a cell. 4) DNA decides what we are, but not who we are.
How do you use DNA in a sentence?
- You get the DNA from the bodies? ...
- He studied the DNA molecule to see if the child was related to the man. ...
- If you and I both had our DNA sequenced and compared the output, the information would be virtually identical.
What is DNA in one sentence?
DNA, which stands for deoxyribonucleic acid, is defined as a nucleic acid that contains the genetic code . ... Short for deoxyribonucleic acid. The nucleic acid that is the genetic material determining the makeup of all living cells and many viruses.
How is DNA like a sentence?
There are only four nucleotides that are ever used, these are Adenine (A), Thymidine (T), Guanine (G), and Cytosine (C). A strand of DNA is much like an extremely long sentence that uses only four letters. DNA actually has two strands, much like a zipper and the nucleotides are like the teeth of that zipper.
What is DNA Meaning?
DNA, or deoxyribonucleic acid , is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. ... The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T).
What is another word for DNA?
| chromosome gene | heredity RNA | chromatin deoxyribonucleic acid | genetic code nucleic acid | genetic material |
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What is interesting about DNA?
1. Your DNA could stretch from the earth to the sun and back ~600 times . If unwound and linked together, the strands of DNA in each of your cells would be 6 feet long. With 100 trillion cells in your body, that means if all your DNA were put end-to-end, it would stretch over 110 billion miles.
What is DNA example?
Examples of extranuclear DNAs are mitochondrial DNA (mtDNA) and chloroplast DNA (cpDNA). ... These organelles have their own genetic system that enables DNA replication and protein synthesis although certain proteins for replication and protein synthesis are still encoded by the nuclear DNA.
How much DNA is in the human body?
The diploid human genome is thus composed of 46 DNA molecules of 24 distinct types. Because human chromosomes exist in pairs that are almost identical, only 3 billion nucleotide pairs (the haploid genome) need to be sequenced to gain complete information concerning a representative human genome.
How is DNA is formed?
What is DNA made of? DNA is made of chemical building blocks called nucleotides . These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
What are the 3 types of DNA?
Three major forms of DNA are double stranded and connected by interactions between complementary base pairs. These are terms A-form, B-form,and Z-form DNA .
What does DNA look like?
What does DNA look like? The two strands of DNA form a 3-D structure called a double helix. When illustrated, it looks a little like a ladder that’s been twisted into a spiral in which the base pairs are the rungs and the sugar phosphate backbones are the legs. ... In a prokaryotic cell, the DNA forms a circular structure.
Do all humans have the same DNA?
The human genome is mostly the same in all people . But there are variations across the genome. This genetic variation accounts for about 0.001 percent of each person’s DNA and contributes to differences in appearance and health. People who are closely related have more similar DNA.
Where does DNA come from?
Your genome is inherited from your parents, half from your mother and half from your father . The gametes are formed during a process called meiosis. Like your genome, each gamete is unique, which explains why siblings from the same parents do not look the same.
Who found DNA?
Many people believe that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s. In reality, this is not the case. Rather, DNA was first identified in the late 1860s by Swiss chemist Friedrich Miescher .
Which is the best definition of DNA?
DNA: Deoxyribonucleic acid. One of two types of molecules that encode genetic information . ... DNA is a double-stranded molecule held together by weak hydrogen bonds between base pairs of nucleotides. The molecule forms a double helix in which two strands of DNA spiral about one other.
