DNA Replication
What is the function of SSBPs?
To prevent the single-stranded DNA from re-annealing.
Which strand of DNA does RNA Polymerase read in a 3' -> 5' direction?
Template strand
What is the anticodon for the following codon?
UUC
AAG
What type of mutation affects only a single nucleotide?
Point mutation
Where did Mr. Qi study biology before pursuing the teaching program?
UBC
What are the 2 functions of DNA Polymerase?
-Elongate the daughter strands
-Replace RNA primers with DNA nucleotides
What are the two components added to the ends of the pre-mRNA before splicing?
5' cap
Poly-A tail
What is the amino acid corresponding to the start codon?
Methionine (Met)
What is it called when a tumour induces the formation of new blood vessels?
Angiogenesis
Which first-person shooter game takes up most of Mr. Qi's free time?
Counter Strike: Global Offensive (CSGO)
What is the function of telomerase?
To prevent telomeres from shortening
What direction is mRNA elongated in?
5' -> 3'
Give the amino acid sequence that would be synthesized from the following mRNA sequence.
5' CGC AAA GCU AUU 3'
Arg-Lys-Ala-Ile
What are the TWO types of genes that can become mutated to cause cancer?
Proto-oncogenes and Tumour suppressor genes
What is the province that Mr. Qi is from?
Alberta
Why is DNA replication called a "semi-conservative" process?
50% of the DNA in each replicated DNA molecule is conserved from the original DNA molecule
What name do we give the segments of DNA that remain in the mature mRNA after splicing?
Exons
What two components comprise the initiation complex?
-A small ribosomal subunit
-A tRNA containing Met
What are the three types of point mutations?
Insertion, Deletion, and Substitution
What is the other class that Mr. Qi is currently teaching?
Science 10
True or False: in a replication bubble, a daughter strand acts as a lagging strand on one side of the ori. On the other side of ori, the same strand will still act as a lagging strand.
False. A daughter strand will act as a leading strand on one side of the ori, and as a lagging strand on the other side.
True or False: the promoter region of a gene lies upstream of the coding strand.
Which site of the ribosome do tRNAs exit the ribosome from?
E site
A mutation affects the following mRNA sequence:
CAC UUU GUC UAC
And results in this sequence:
CAC UUG GUC UAC
Name BOTH the amino acid in the original sequence that was affected, and what the amino acid became after mutation.
Phe; Leu
The city that Mr. Qi is from
Edmonton