IB 150- Unit 2 Exam- Week 5 Questions With Complete
Solutions
A protein has the following amino acid sequence. Construct a
DNA nucleotide sequence of this portion of the gene
Phenylalanine- Glycine- Alanine-Proline-Valine-Asparagine
Could there have been a different DNA sequence that produced
this sequence of amino acids in the protein? Correct Answers
AAACCACGAGGACAATTA
Yes, the genetic code is degenerate- more than one codon codes
for an amino acid
Antibodies Correct Answers defense
Base-Pairing Rules Correct Answers the rules stating that
cytosine pairs with guanine and adenine pairs with thymine in
DNA, and that adenine pairs with uracil in RNA
A-->T
G-->C
Be able to identify the start codon in the correct reading
direction (5' to 3') of an mRNA molecule and translate a
sequence of codons to the protein product, if given an mRNA
codon chart. Correct Answers The start codon on an mRNA
molecule will read AUG. You will then read each codon in base
pairs of three. Each base pair of codons codes for an amino acid
, on the mRNA codon chart. Keep going until the entire sequence
is translated or once you reach a stop codon.
Be able to transcribe a gene in the correct direction (3' to 5')
when given information on which strand the transcribed
(coding) strand is. Correct Answers he genetic code in DNA is
only carried on one strand. This strand is called the coding
strand. The other strand is called the template strand.
Coding Strand
Information read in the 5' to 3' direction
Ex) 5'-ATTGC-3'
Template Strand
Complementary to the coding strand
Every A on coding strand is matched to a T on the template
strand (vice versa)
Every G on coding strand is matched to a C on the template
strand (vice versa)
When you make RNA on the template strand, you will get a
copy of the information on the coding strand except...
RNA will have Uracil (U) instead of Thymine (T)
Ex)
Coding Strand: ATTGCT
RNA Strand: AUUGCU
Central Dogma of Molecular Biology Correct Answers DNA ->
RNA -> Protein
Chromatin Correct Answers Clusters of DNA, RNA, and
proteins in the nucleus of a cell
Solutions
A protein has the following amino acid sequence. Construct a
DNA nucleotide sequence of this portion of the gene
Phenylalanine- Glycine- Alanine-Proline-Valine-Asparagine
Could there have been a different DNA sequence that produced
this sequence of amino acids in the protein? Correct Answers
AAACCACGAGGACAATTA
Yes, the genetic code is degenerate- more than one codon codes
for an amino acid
Antibodies Correct Answers defense
Base-Pairing Rules Correct Answers the rules stating that
cytosine pairs with guanine and adenine pairs with thymine in
DNA, and that adenine pairs with uracil in RNA
A-->T
G-->C
Be able to identify the start codon in the correct reading
direction (5' to 3') of an mRNA molecule and translate a
sequence of codons to the protein product, if given an mRNA
codon chart. Correct Answers The start codon on an mRNA
molecule will read AUG. You will then read each codon in base
pairs of three. Each base pair of codons codes for an amino acid
, on the mRNA codon chart. Keep going until the entire sequence
is translated or once you reach a stop codon.
Be able to transcribe a gene in the correct direction (3' to 5')
when given information on which strand the transcribed
(coding) strand is. Correct Answers he genetic code in DNA is
only carried on one strand. This strand is called the coding
strand. The other strand is called the template strand.
Coding Strand
Information read in the 5' to 3' direction
Ex) 5'-ATTGC-3'
Template Strand
Complementary to the coding strand
Every A on coding strand is matched to a T on the template
strand (vice versa)
Every G on coding strand is matched to a C on the template
strand (vice versa)
When you make RNA on the template strand, you will get a
copy of the information on the coding strand except...
RNA will have Uracil (U) instead of Thymine (T)
Ex)
Coding Strand: ATTGCT
RNA Strand: AUUGCU
Central Dogma of Molecular Biology Correct Answers DNA ->
RNA -> Protein
Chromatin Correct Answers Clusters of DNA, RNA, and
proteins in the nucleus of a cell
