DNA Structure
What are the 4 nitrogenous bases of DNA?
Adenine, Guanine, Cytosine, and Thymine
What is the purpose of DNA Replication?
To create a copy of DNA
In transcription, DNA is transcribed into _______.
mRNA
In translation, mRNA is being translated into _________.
proteins
Uracil is found in the sequence, is this a strand of DNA or RNA?
RNA
The DNA sequence is: ACG TAG TGA.
1. What is the DNA copy?
2. What are the mRNA codons?
3. What are the tRNA codons?
4. What are the amino acids?
1. TGC ATC ACT
2. ACG UAG UGA
3. UGC AUC ACU
4. Thr - STOP
Adenine pairs with
Thymine
The following nucleotide sequence was observed during DNA replication: AGCTC. What is the complementary sequence?
TCGAG
Where does Transcription take place?
Nucleus
Where does translation take place?
Ribosome
The strand is found to be double-stranded. Is this DNA or RNA?
DNA
Guanine pairs with
Cytosine
The following nucleotide sequence was observed during DNA replication: GCTAATC. What is the complementary sequence?
CGATTAG
If the DNA sequence is ATCGCA, what is the complementary mRNA sequence?
UAGCGU
How many bases makeup an amino acid?
3
The sugar in the backbone is ribose. Is this DNA or RNA?
RNA
What is the shape of DNA?
Double-Helix
Why is DNA referred to as semi-conservative?
Made up of 1 parent strand and 1 new strand
If the DNA sequence is TGCAAC, what is the complementary mRNA sequence?
ACGUUG
According to the genetic code, what is coded by GUC?
Valine
The following nucleotide sequence was observed during DNA transcription: GGACA
What is the correct complementary sequence?
CCUGU
What are the three components of a nucleotide?
Base, phosphate, and sugar
What must be removed first for DNA fragments to be joined together?
RNA primers
Base sequences of mRNA are called
Codons
Base sequences of tRNA are called
Anti-codons
The following nucleotide sequence was observed during DNA replication: ACGAT
What is the correct complementary sequence?
TGCTA