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what is a nucleic acid?

nucleic acid is an organic compound found in all living things

what is the main nitrogenous base of DNA?

cytosine, guanine and thymine

what is the main nitrogenous base of RNA?

adenine, guanine and uracil

what are the structural components of DNA?

deoxyribose, phosphoric acid, and thymine

Name the bonds in nuleic acids

3',5'-phosphodiester bonds and N-glycosidic bond

what is the structure of nucleic acids?

they are large polymers that consists of smaller repeating units made of monomers. The monomers are nucleotides.

what is the main nitrogenous base of DNA?

cytosine, guanine and thymine

what are the structural components of DNA?

deoxyribose, phosphoric acid, and thymine

what are Okazaki fragments?

they are short DNA fragments, and they are located in the 5' to 3' direction

which sugar do DNA have?

deoxyribose

Name the five nitrogenous bases

Adenosine, thymine, Cytosine, Guanine and Uracil

which nitrogenous base is found in DNA but not in RNA?

thymine

Multiple nucleotide form a

polynucleotide.

what is the structure of a polynucleotide?

a polynucleotide has a free phosphate group at one end and a free OH group at the other end

The two strands are wound round each other to form a?

a double helix

The two strands are joined together by __________ between the bases?

The two strands are joined together by hydrogen bonds between the bases

what is the structure of DNA?

a double helix

who discovered the double helix structure of the DNA?

James Watson and Francis Crick

what does a nucleotide consist of?

a sugar, phosphate group, and a nitrogenous base

How many DNA strands are there?

two

What is Thymine paired with in DNA?

Adenine

What is guanine paired with in DNA?

cytosine

what are the repeating units of DNA called?

nucleotides

Which organelles have DNA molecules present?

mitochondria and chrloroplasts

when does DNA copy itself?

it copies it's self before cell division

what is the main nitrogenous base of RNA?

adenine, guanine and uracil

what is an RNA?

it is a single starnded ribonucleotide. The nucleotides are combined by 3',5'-phosphodiester bonds

what is an mRNA?

it transfers the genetic information from nucleus to ribosomes.

what is the site of RNA processing?

the nucleus is the site for RNA processing.

which sugar do RNA have?

ribose

which nitrogenous base is found in RNA but not in DNA?

Uracil

Is RNA a single or double stranded?

RNA is single stranded

What is adenine paired with in RNA?

Uracil

what is RNA a polymer of?

RNA is a polymer of ribonucleotides linked together by 3'-5' phosphodiester linkage

how many nucleotide make up a codon?

3