
24S2 DNA and Gene Expression
Presentation
•
Biology
•
12th Grade
•
Medium
Aleisha Bliesner
Used 4+ times
FREE Resource
57 Slides • 20 Questions
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Which one doesn't belong?
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BioMan Biology
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Multiple Choice
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Multiple Choice
A nucleotide is composed of
A phosphate, sugar and nitrogenous base
A protein, sulfur and guanine
A phosphate, lipid and a base
A protein, sugar and nitrogenous base
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Multiple Choice
The bonds that join nucleotides to form DNA and RNA are called:
Glycosidic Bonds
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Multiple Choice
Which bonds join the nitrogenous bases in the centre of the DNA strand?
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Multiple Choice
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Multiple Choice
Which sequence of DNA bases would pair with this partial strand?
ATG TGA CAG
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Open Ended
How long do you think the DNA in a single human cell would be if it were stretched out and lined up end to end?
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How is this possible?
About 2 meters long!
This is amazing considering that the nucleus of a human cell is typically only a few micrometers in diameter!
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Categorize
long
short
usually single-stranded
ATCG
AUCG
double-stranded
Deoxyribose
Ribose
A-T, C-G
A-U, C-G
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Match
Match the following
The complete set of genetic material (DNA) in an organism.
A specific sequence of DNA that codes for a protein.
One of the different forms of a gene that can exist at a specific locus on a chromosome.
The process by which a gene is used to produce a protein.
The physical location of a gene on a chromosome.
Genome
Gene
Allele
Gene expression
Locus
Genome
Gene
Allele
Gene expression
Locus
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LabXchange
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Multiple Choice
In order for a gene to be expressed, ___ must bind to the gene's ___, a specific sequence of nucleotides at one end of the gene, thus initiating transcription.
DNA polymerase, promotor
DNA polymerase, operator
RNA polymerase, promotor
RNA polymerase, operator
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Multiple Choice
RNA polymerase catalyses the polymerization of mRNA in which direction?
only 5’ → 3’
only 3’ → 5’
any direction
none of these
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Multiple Choice
If the template strand has the sequence 3' GCTATA 5', what is the sequence of the mRNA transcript?
3' GCUAUA 5'
5' CGATAT 3'
5' CGAUAU 3'
3' GCUTUT 5'
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Multiple Choice
If the sequence of the coding strand is 5’ GCCGTACCGTTACG 3’ , then the sequence of mRNA will be:
5’ GCAUUGCCAUGCCG 3’
3’ CGGUACCGUUAGCC 5’
5’ GCCGUACCGUUACG 3’
3’ CGGCAUGGCAAUGC 5’
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Multiple Select
RNA processing in eukaryotes includes:
Addition of a 5' cap
Addition of a poly-A tail
Intron splicing
Addition of a poly-T tail
Addition of a 3' cap
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LabXchange
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Multiple Choice
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Multiple Choice
regulates gene expression
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Multiple Choice
UUA codes for which amino acid?
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Multiple Select
Which mRNA sequence/s code for glutamine? Select all that apply.
CGU
CAG
CUA
CAA
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Categorize
repressor binds to the operator
lac operon is not transcribed
no lactose metabolism occurs
lactose inhibits the repressor
lac operon is transcribed
lactose metabolism occurs
What processes occur in E. coli in the presence and absence of lactose?
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Match
Match the following
Proteins that induce or repress transcription
Code for proteins not involved in gene regulation
Control the expression of structural genes via the production of transcription factors
Control the expression of numerous regulatory genes during embryonic development
Genes that are turned on all of the time
Transcription factors
Structural genes
Regulatory genes
Master regulatory genes
Constitutive genes
Transcription factors
Structural genes
Regulatory genes
Master regulatory genes
Constitutive genes
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