DNA Flashcards
How does DNA decide what amino acids will make up a protein?
DNA sequence decided order of mRNA bases, mRNA bases decide what amino acids bond
Compare Transcription and Translation
- C and G bond together
- DNA must be unzipped first
Why does mRNA go to ribosomes?
That is where the proteins are assembled
U replaces what base?
Thymine (t)
What does m in mRNA stand for?
Messenger
Single strand that delivers messages:
mRNA
(Nucleus) -> uuu acg cca -> Ribosomes
Is this transcription or translation?
Translation
What does t in tRNA stand for?
Transfer, because it transfers amino acids to the ribosome
What is a codon?
Set of 3 nucleotides
Summarize DNA replication:
Step 1, DNA Unzips
Step 2, Freed nucleotides bond to exposed bases
Why is DNA called Semiconservative?
1/2 is old strand
1/2 is new strand
What needs to separate for DNA replication?
Hydrogen Bonds
Why do we need DNA replication?
Every cell needs a complete copy of DNA, so it needs to be copied for cells to divide
When does DNA replication take place?
Interphase
Where is DNA replication in a Eukaryotic cell?
Nucleus
What is DNA replication?
Creating an identical strand of DNA
Contains Nucleotides
Both
Has Dioxyribose sugar
DNA
Has ribose sugar
RNA
Is a nucleic acid
Both
T or F: DNA can leave the nucleus
False, RNA can leave the nucleus
Has Thymine
DNA
Has Uracil
RNA
Involved in Transcription
DNA
Involved in Translation
RNA
Double Stranded
DNA
Single Stranded
RNA
Contains Phosphate
Both
What does D in DNA stand for?
Deoxyribose
What does R in RNA stand for?
Ribose
DNA complementary strand for GGCAGTTCAT
CCGTCAACTA
How does DNA hold information?
The order of bases
How do DNA nucleotides bond together?
Within a strand: Phosphate bonds to sugar
Across a strand: Hydrogen bonds between complementary bases
