What is the basic unit of DNA called quizlet?

Double helix with antiparallel strands. The DNA polymer is composed of repeating units called nucleotides. Each DNA nucleotide consists of three components linked together by condensation: a phosphate, a five-carbon sugar (deoxyribose), and one of four different nitrogenous bases.

What is the basic unit of DNA and RNA?

nucleotide
The basic unit for DNA, and its brother RNA (ribonucleic acid), is a nucleotide, also sometimes called nucleobases, nucleosides, or just “bases.” Yes, these guys have a lot of nicknames. Nucleotides are also often mistakenly referred to as nucleic acids.

What is the name of the basic structural units of RNA?

RNA consists of ribose nucleotides (nitrogenous bases appended to a ribose sugar) attached by phosphodiester bonds, forming strands of varying lengths. The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil, which replaces thymine in DNA.

Which is the structural unit in a DNA strand *?

2. Each DNA strand is composed of nucleotides—units made up of a sugar (deoxyribose), a phosphate group, and a nitrogenous base. Each strand of DNA is a polynucleotide composed of units called nucleotides. A nucleotide has three components: a sugar molecule, a phosphate group, and a nitrogenous base.

What are the 3 units of DNA?

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.

What is functional unit of DNA?

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases.

What are the DNA bases?

There are four nucleotides, or bases, in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). These bases form specific pairs (A with T, and G with C).

What are the four basic units of DNA?

There are 4 different bases in DNA: Guanine (G), Adenine (A), Cytosine (C) and Thymine (T). The sequence in which the bases occur is a code that contains information.

Why genes are called functional unit of DNA?

a gene is the functional unit of DNA which contains the abilities and characters of a specific organism. these characters are hereditary and some of them are transferred from parent to offspring.

What is called the functional unit of a DNA molecule that may code for RNA or protein?

genes
DNA is divided up into functional units called genes, which may specify polypeptides (proteins and protein subunits) or functional RNAs (such as tRNAs and rRNAs). Information from a gene is used to build a functional product in a process called gene expression.