DNA Structure Part 1
What is the shape of the DNA molecule?
Double Helix
How many nitrogen bases are there in DNA?
4
What does it mean to replicate something?
To make an exact copy
How many strands is RNA?
1
Transcribe this DNA sequence into RNA. AGGCCT
UCCGGA
How many strands of DNA are there?
2
What are the base pairing rules for DNA?
A pairs with T
C pairs with G
What is the result of DNA replication? Be specific
2 DNA molecules that are exactly the same
How are the bases of RNA different than DNA?
U instead of T
What is the result of transcription?
mRNA
What two things make up the backbone of DNA?
Sugar and phosphate
What part of the DNA acts as the instructions?
nitrogen bases
What is the first step of DNA replication?
Unwind and unzip the double helix
mRNA
What is the result of translation?
A protein
What is a chromosome?
DNA that is tightly wrapped or coiled.
What holds together the 2 strands of DNA?
Hydrogen bonds
What is the complementary DNA sequence to this strand of DNA? AAGCT
TTCGA
What type of RNA carries amino acids to a ribosome?
tRNA
How many bases at a time is the mRNA read? What is name of it?
3 and codon
What is a gene?
A section of DNA that codes for a specific protein
What are the 3 parts of a nucleotide?
sugar, phosphate, nitrogenous base
What does it mean that DNA replication is semiconservative?
Each DNA molecule produced has one original stand and one new strand of DNA
What can RNA do that DNA cannot?
Leave the nucleus
The DNA code is TACGGG. What amino acids would be added to the protein?
Methionine and Proline