Presentation is loading. Please wait.

Presentation is loading. Please wait.

DNA What is it? And How does it control cells?

Similar presentations


Presentation on theme: "DNA What is it? And How does it control cells?"— Presentation transcript:

1 DNA What is it? And How does it control cells?
Replication, Transcription and Translation

2 DNA Deoxyribose Nucleic Acid or DNA is made of atoms of C, H, O, N and P. The sides of the twisted ladder are made of alternating sugars and phosphates. The rungs of the ladder are made from pairs of the four nitrogeneous bases Adenine, Thymine, Guanine and Cytosine.

3 Replication This means to make an exact copy of something. DNA replicates so that new cells are identical to the ones being replaced. To replicate, DNA opens up or ‘unzips’ along the base pairs, and then repairs with a new set of bases, so that the new DNA forms inside the old. Base pairs are A with T and C with G.

4 To practice replication:
Roll the die three times and record the letter each time. Using the base pair rule, determine what the other side of the DNA would look like. This is done in 3’s since that is the number of bases in a mRNA codon which pairs for a single amino acid. Complete 12 triplet DNA base pair sets.


Download ppt "DNA What is it? And How does it control cells?"

Similar presentations


Ads by Google