RNA+Structure

DNA Contents
 * [|General]
 * 1[| DNA->Scientists]
 * 2 DNA->Structure
 * 3 DNA->Replication
 * 4 DNA->RNA Structure
 * 5 DNA->Protein Synthesis
 * 6 DNA->Transcription
 * 7 DNA->Translation
 * 8 DNA-> Mutation
 * 9 DNA-> Practice Quiz

=RNA Structure= media type="custom" key="33541"

=Study Guide= 9. What are the three big differences between DNA and RNA? The three big differences between DNA and RNA are:

1. RNA is a single strand and DNA is a Double strand (Double Helix). 2. DNA has deoxyribose as the sugar and RNA has ribose. 3. DNA has the nitrogenous base thymine and RNA replaces thymine with Uracil. 4. DNA CANNOT leave the nucleus but RNA does.

10. What is RNA used for? Why do we need RNA?

RNA is used in protein synthesis and a carrier of genetic information. RNA is important since DNA is restricted only to the nucleus and therefore messages cannot be sent, unless it is through RNA synthesizing (copying DNA)- transcription/translation.

11. What are the three types of RNA? What does each do?

1. mRNA: (messanger RNA) is made by copying the dna and takes the message to the ribosome. 2. tRNA: (transfer RNA) is located in the cytoplasm and carries the amino acids to the ribosome. 3. rRNA:(Ribosomal RNA) makes up the ribosome.

12. How is RNA made? What enzyme is used?

RNA is made of a single strand of nucleotides which uses uracil as the base instead of thymine, and ribose as the sugar component. The enzyme used is RNA polymerase.

13. Please name each strand of RNA and give a non-biology related example. (i.e.- tRNA is like a stock boy at Service Merchandise)

The tRNA is like the stock boy at Nordstrom Rack The rRNA is like a chef The mRNA is like the check out boy taking the items to another location