Quick Answer: What Does Base Mean In Biology?

Definition. noun, plural: bases. (1) (molecular biology) The nucleobase of a nucleotide involved in base pairing, as of a DNA or RNA polymer. (2) (anatomy) The lowest or bottom part of a plant or animal organ closest to the point of attachment.

What is A base in biology examples?

Examples of bases are sodium hydroxide, calcium carbonate and potassium oxide. A base is a substance that can neutralize the acid by reacting with hydrogen ions. Most bases are minerals that react with acids to form water and salts. Bases have a slippery feel and taste bitter.

What do they mean by base?

plural bases ˈbā-​səz Essential Meaning of base. 1: the bottom or lowest part of something: the part on which something rests or is supported. 2: something (such as a group of people or things) that provides support for a place, business, etc. 3: a main ingredient to which other things are added to make

What is A base in A gene?

Bases are the part of DNA that stores information and gives DNA the ability to encode phenotype, a person’s visible traits. Adenine and guanine are purine bases. These are structures composed of a 5-sided and 6-sided ring. Cytosine and thymine are pyrimidines which are structures composed of a single six-sided ring.

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What is A base in molecular biology?

In nucleic acid chemistry, one of the nitrogenous compounds, i.e. purines and pyrimidines, that are incorporated into nucleosides, nucleotides and nucleic acids. The most common bases are adenine, cytosine, guanine, thymine and uracil, abbreviated as A, C, G, T and U respectively. Tags: Molecular Biology.

What are 5 examples of bases?

Some common strong Arrhenius bases include:

  • Potassium hydroxide (KOH)
  • Sodium hydroxide (NaOH)
  • Barium hydroxide (Ba(OH)2)
  • Caesium hydroxide (CsOH)
  • Strontium hydroxide (Sr(OH)2)
  • Calcium hydroxide (Ca(OH)2)
  • Lithium hydroxide (LiOH)
  • Rubidium hydroxide (RbOH)

What are bases in science?

base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis).

What is an example of a base word?

A base word can stand alone and has meaning (for example, help ). A suffix is a word part added to the end of a word (for example, -ful). If you add the suffix -ful to the base word, help, the word is helpful. A prefix is a word part added to the beginning of a word or base word (for example, un-).

What part is the base?

In geometry, the bottom of a three-dimensional object is called a base – if the top of the solid is parallel to the bottom it is also called a base.

What do you mean by base in a number system?

In a positional numeral system, the radix or base is the number of unique digits, including the digit zero, used to represent numbers. For example, for the decimal/denary system (the most common system in use today) the radix (base number) is ten, because it uses the ten digits from 0 through 9.

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What is a base in biology quizlet?

base. a compound that produces hydroxide ions (OH-) in solution and measures more than 7 on the pH scale.

What bases are in RNA?

RNA consists of four nitrogenous bases: adenine, cytosine, uracil, and guanine. Uracil is a pyrimidine that is structurally similar to the thymine, another pyrimidine that is found in DNA. Like thymine, uracil can base-pair with adenine (Figure 2).

Is a base pair a gene?

These stretches of DNA are known as genes. Their base pair sequence provides the instructions for bringing together the right amino acids in the right order to build a protein. Some genes are small, only around 300 base pairs; others contain over one million.

What is base of the cell?

Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). 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 A base in biology pH?

The pH scale is often said to range from 0 to 14, and most solutions do fall within this range, although it’s possible to get a pH below 0 or above 14. Anything below 7.0 is acidic, and anything above 7.0 is alkaline, or basic.

What is base in anatomy and physiology?

base. any substance that binds to or accepts hydrogen ions. defined as the proton acceptor. salt.

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