What is the shape of the DNA molecule?
Double Helix
What part of the cell does DNA replication take place?
Nucleus
What is transription?
Copying of DNA into RNA
What is Translation and where does it occur?
Changing of mRNA sequence into an amino acid sequence; Ribosome
The sequence of nucleotide bases on mRNA that would complement the following bases on DNA: A T T C G C A G T
What is U A A G C G U C A
What is the first step in DNA replication and what enzyme carries this out?
Unzipping of DNA; Helicase
In the Nucleus
What are the triplet codes of mRNA called? What are the triplet codes of tRNA called?
Codon and Anticodon
What bonds hold the backbone together? What bond holds the nitrogen bases together?
Covalent bonds and hydrogen bonds
Why do cells need to replicate their DNA?
Ensures that new cells contain the exact copy of the organisms DNA. Ensures that the cells have the correct amount of genetic information in them.
What RNA molecule takes the strand to the Ribosome?
mRNA
Get out your book and go to page 303 for this next question:
What is the amino acid sequence that codes for this strand of mRNA: A U G U C A A G G
Methionine - Serine - Arginine
The three parts of the DNA nucleotide (building block)
What are deoxyribose sugar, phosphate group and nitrogen base?
What enzyme matches up nucleotides?
DNA polymerase
What enzyme is responsible for connecting RNA nucleotides to the DNA template?
RNA polymerase
Peptide bonds
If 15% of the DNA is made of adenine, how much is cytosine?
35%
What is the complementary strand for this strand of DNA: A T C G A T T
T A G C T A A
What is the complementary RNA strand of the following DNA strand:
A T T G G C A T C A A G
U A A C C G U A G U U C
What type of RNA is found in the ribosome?
Ribosomal RNA (rRNA)