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DNA consists of a very long molecule shaped like a double spiral or double helix. Imagine the molecule as a very long spiral stairs. The side 'handrails' in the DNA are groups of atoms called phosphate groups. The spiral staircase 'steps' in the DNA molecule are pairs of molecules called nucleotides. Just four different nucleotides (with the names Adenine, Cytosine, Guanine and Thymine) make up these pairs (called 'base pairs') right through the DNA molecule, in a code that determines a characteristic of the living thing to which the DNA belongs. As an example, imagine each step on the spiral stairs is labelled after the first letters of the nucleotide names - top step, AC, then CG, AG, AT, AC, GA and so on. The complete code of a human being that reads like this... AGCTGTCAGTGACTTCACTACTTACTA... and so on for thousands of pages, is called the human genome. A long series of base pairs (i.e. a small section of the DNA molecule) may control a particular characteristic of the living thing to which they belong (e.g. eye colour, hair colour etc.) and is called a gene. Many thousands of these genes make up a long stretch of DNA that is coiled and coiled into a small structure called a chromosome. In the nucleus of every human cell there are 23 pairs of chromosomes containing the whole code unique to the individual human. So, if you ignore the atoms themselves, the smallest active unit of DNA is one of the nucleotides that make up the code. next comes the base pair, then the genes and finally the chromosome. DNA forms a chain, and long chains are known as chromosomes. Chromosomes are complex, consisting of proteins (with various functions) plus nucleic acid (DNA). Both of these are made of intricately formed molecules. A molecule is a group atoms. Atoms comprise of ….(how far do you want to go?)
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∙ 15y ago
Wiki User
∙ 14y agoA Nucleotide is the smallest piece of genetic material.
A cistron is the smallest unit of genetic material needed to convey a genetic message to create a protein.
Wiki User
∙ 13y agoDNA is a Polymer. Its monomers (Or smaller Units) are Nucelotides. Both DNA and Nucleotides are considered Nucleic Acids.
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∙ 11y agoNitrogenous base (Adenine, Thymine, Cytosine, Guanine, Uracil).
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∙ 13y agoIt is called a nucleotide
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∙ 9y agolaugh out loud
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∙ 15y agoNucleotides
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What is the basic unit of chromosomes?
The small unit of chrosomorosomes is called genes.
Smallest membrane bound unit of life forms tissue in plants and animals is called what?
The smallest membrane bound unit of life forms tissue in plants and animals is called is the cell.
The unit of a DNA molecule which is made up of a nitrogen carrying base a sugar molecule and a phosphate group is called a what?
DNA and RNA are nucleic acids. When broken to the smallest unit it is called a nucleotide. The nucleotide of both DNA and RNA is up of a sugar molecule which is attached to a phosphate group and a base. The bases of DNA are thymine, adenine, guanine, and cytosine. In RNA adenine is replace with uracil while it keeps thymine, guanine, and cytosine. In DNA adenine pairs with thymine, and cytosine pairs with guanine. In RNA uracil pairs with thymine, and cytosine pairs with guanine.
What is the smallest unit of measure in microbiology?
bad question. Unit of measurement of what? Distance? Volume? Sound? Force? mass? I would say micrometers is generally the smallest measurement of distance in microbiology. Although some things, like DNA, proteins are measured in nm.
What is the largest unit in a data hierarchy?
A record is the largest unit of information in the data hierarchy. The smallest unit in the data hierarchy is called a data field.
What is the smallest unit of DNA?
laugh out loud
What is a compound's smallest unit usually called?
If it is a molecular compound, the smallest unit is called a molecule. If it is an ionic compound, the smallest unit is called a formula unit.
The smallest addressable unit of storage on a disk is called a?
The smallest addressable unit of storage on a disk is called a sector.
What is the smallest unit of knowledge?
Cells.
What is the smallest unit of inheritance?
Heredity is the passing of traits to offspring (from its parent or ancestors).That being said, the smallest unit of Heredity is a gene, because a gene is the smallest unit capable of conveying a genetic message. Technically the smallest unit of heredity is a cistron, but that's essentially the same as a gene.I would have said a nucleotide, but a single nucleotide can't convey a hereditary message.
What is the major subunit of DNA called?
DNA's sub unit is called a nucleotide.
What is the smallest structural and functional unit of the kidney?
The smallest functional andstructural unit of kidney is called as -
What is the basic unit of chromosomes?
The small unit of chrosomorosomes is called genes.
The smallest meaningful unit of language structure is called?
Morpheme
What is a compound's smallest unit called?
methane
What is a smallest unit of worksheet called?
cells
What is the smallest unit of positive charge called?
a
