RNA DNA and DNA replication

What are examples of nucleic acids

RNA, DNA and ATP

What does dna, rna and atp stand for

Deoxyribonucleic acid.

Ribonucleic acid

adenosine triphosphate

what is the common structure for nucleotides

pentose sugar, a phosphate group and an organic base

DNA and RNA differences

DNA

DNA

contains thymine

its pentose sugar is called deoxyribose

double stranded

longer chains

DNA and RNA differences

RNA

RNA

contains uracil not thymine

its pentose sugar is called ribose

single stranded

shorter chains

What are the bases called

Cytosine, Guanine, Thymine, Adenine

and uracil on RNA

The complementary base pairs

Cabbages grow in the Ground

Apples grow on Trees

Cytosine binds to guanine

Adenine binds to thymine

Uracil in RNA binds to..

adenine in DNA

the sugar phosphate backbone is called

the phosphodiester backbone

DNA FUNCTION

Carries information between generations. Contained in nucleotide order.

gives variation between individuals

very stable

semi conservative DNA repliation (part 1)

the two strands must split.

Happens in the nucleus

DNA helicase breaks te weak hydrogen bonds holding bases together.

In the nucleus many free floating nucleotides.

As the strands separate new nucleotides bond to the two single strands.

semi consevative DNA replication (part 2)

DNA polymerase adds the nucleotides and helps form phosphodiester bonds between them.

called semi conservative as half of original DNA has been conserved

semi conservative DNA replication (part 3)

the two strands in the double helix run in opposite directions. They are antiparallel to each other.

DNA polymerase can only act in 1 direction. From the 5 end to the 3 end. from the pentose sugar

During DNA replictation the two enzymes act in opposite directions.