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WorksheetsTopic 7 IB Biology
Total questions: 56
Worksheet time: 28mins
What part of a nucleotide is part A?
Phosphate: attaches to 5 C of deoxyribose
Sugar: 5 Carbon Sugar of deoxyribose
Base: Attach to 1 Carbon
A covalent bond that bonds each of the structures together
What part of a nucleotide is part B?
Phosphate: attaches to 5 C of deoxyribose
Sugar: 5 Carbon Sugar of deoxyribose
Base: Attach to 1 Carbon
A covalent bond that bonds each of the structures together
What part of a nucleotide is part C?
Phosphate: attaches to 5 C of deoxyribose
Sugar: 5 Carbon Sugar of deoxyribose
Base: Attach to 1 Carbon
A covalent bond that bonds each of the structures together
What do the Lines in between the structures of a nucleotide represent?
Phosphate: attaches to 5 C of deoxyribose
Sugar: 5 Carbon Sugar of deoxyribose
Base: Attach to 1 Carbon
A covalent bond that bonds each of the structures together
Purine include what type of bases and structures?
Double Ring Structure
Adenine and Guanine
Single Ring Structure
Thymine and Cytosine
Pyrimidine include what type of bases and structures?
Double Ring Structure
Adenine and Guanine
Single Ring Structure
Thymine and Cytosine
Which of the following is not a base in RNA?
Adenine (A)
Guanine (G)
Thymine (T)
Cytosine (C)
Which of the following is not a base in DNA?
Adenine (A)
Guanine (G)
Uracil (U)
Cytosine (C)
What type of bond is between phosphate , sugar, and base in a nucleotide?
Covalent Bond
Ionic Bond
Hydrogen Bond
Covalent Bomb
What type of bond is formed between the base pairs in a nucleotide?
Covalent Bond
Ionic Bond
Hydrogen Bond
Hydrogen Bomb
Why is a molecule of DNA/RNA anti-parallel?
One strand is the leading strand, and the other strand is the the lagging strand
One strand runs 3' to 5' while the other runs 5' to 3'
One strand likes to connect the way it wants to when it does
Because
Which enzyme untwists strands of DNA and separates the bases?
Helicase
DNA Polymerase III
Gyrase
Ligase
Which enzyme adds nucleotides to template strands?
Helicase
DNA Polymerase III
Gyrase
Ligase
DNA replication is which of the following?
semi-conservative
Conservative
dispersive
Doesn't really get into politics
Why are complementary base pairs important during DNA replication?
The pairs code for specific genes
It helps with conserving the base sequence during replication
Codons are important in maintaining the sequence
Base pairs are not important
Why dos the generation 2 in Messelson and Stahl's experiment support the semi-conservative model of DNA replication?
It does not support the semi-conservative model
The E coli had one strand of 15 N DNA and one strand of 14 N DNA
RNA was found after use of both proteins
The E Coli coded differing proteins after exposed to the composite chemicals
What is the correct order for the process of transcription?
RNA polymerase opens the DNA; RNA polymerase binds the promoter region; RNA and DNA nucleotides are paired up; RNA nucleotides provide energy to create a RNA strand; Transcription stops at terminator;
RNA polymerase binds the promoter region; Transcription stops at terminator; RNA polymerase opens the DNA; RNA and DNA nucleotides are paired up; RNA nucleotides provide energy to create a RNA strand;
RNA nucleotides provide energy to create a RNA strand; Transcription stops at terminator; RNA polymerase opens the DNA; RNA and DNA nucleotides are paired up; RNA polymerase binds the promoter region;
Transcription stops at terminator; RNA nucleotides provide energy to create a RNA strand; RNA polymerase opens the DNA; RNA and DNA nucleotides are paired up; RNA polymerase binds the promoter region;
Transcription begins with...
Promoters
Terminator
Nucleus
RNA polymerase
Transcription ends with...
Promoters
Terminator
Nucleus
RNA polymerase
Transcription happens in...
Promoters
Terminator
Nucleus
RNA polymerase
Transcription uses...
Promoters
Terminator
Nucleus
RNA polymerase
Translation begins with...
mRNA
Protein
Ribosomes
Ribosome
Translation ends with...
mRNA
Protein
Ribosomes
Ribosome
Translation happens in...
mRNA
Protein
Ribosomes
Ribosome
Translation uses...
mRNA
Protein
Ribosomes
Ribosome
Define a codon
Sequence of 3 nucleotides
A waste of DNA
A sequence of meaningless letters
Letters that mean something
On what type of molecule can anti-codons, which are complementary to codons, be found?
tRNA
mRNA
DNA
DNA Polymerase
An mRNA strand codes has 90 codons; how many amino acids will be in the polypeptide?
270
90
30
9
A polypeptide contains 100 amino acids; How many base pairs long is the gene?
50
300
30
25
How has information about methods of hormone production impacted the medical field?
The same gene codes for insulin in humans and in E. coli
Money, Money, Money
People are healthier
The bacteria was eraticated
Which part of the cell cycle would DNA be the most visible and super-coiled?
Replication
Cell Division
Osmosis
Diffusion
In what direction does DNA polymerase add bases onto the template strands? What implication does this have for the addition of bases on the growing strands?
5' to 3'
Only the antisense strand is transcribed
3' to 5'
Only the sense strand is transcribed
Enzyme that releases strain that develops when helicase unwinds DNA
DNA Gyrase
DNA Helicase
DNA Polymerase II
RNA Primase
Unwinds DNA (unzips genes)
DNA Gyrase
DNA Helicase
DNA Polymerase II
RNA Primase
Adds nucleotides to template strands?
DNA Gyrase
DNA Helicase
DNA Polymerase II
RNA Primase
Adds short segments of RNA primers to provide a place for DNA polymerase III to start
DNA Gyrase
DNA Helicase
DNA Polymerase II
RNA Primase
Removes RNA primer and replaces it with DNA nucleotides
DNA Polymerase I
DNA Helicase
DNA Polymerase II
RNA Primase
Covalently bonds fragments of DNA from the lagging strand together
DNA Ligase
DNA Helicase
DNA Polymerase II
RNA Primase
Distinguish between coding and non-coding regions of DNA
Coding sequences code for production of a specific protein, and non-coding is structural DNA at the end of DNA
Non-coding code for production of a specific protein, and coding sequences is structural DNA at the end of DNA
Proteins are used to make non-coding parts of the DNA and enzymes are used to make the coding parts
Enzymes are used to make non-coding parts of the DNA and proteins are used to make the coding parts
How can non-coding regions can be involved in gene expression?
It defines the structure of the chromosomes
It does not impact the gene expression
When DNA uncoils due to outside factors; the non coding parts unravel quicker
DNA does not have non-coding parts
Why are non-coding tandem repeats more useful than coding regions in DNA profiling?
They show variation between people , and can be used more efficiently in DNA profiling
They are not used in DNA profiling
The codons are easier to read when they are non-codons
They are shorter and easier to define
Give instructions to begin transcription...
Promoters
Histones
RNA polyemerase
DNA Polyemerase II
DNA wraps around _____to form nucleosomes and stop transcription
Histomes
A Blanket
Helicase
DNA Replication
In what direction does transcription occur?
5' to 3'
3' to 5'
5' to 5'
3' to 3'
Are expressed or direct the synthesis of proteins...
Exons
Introns
Phenotype
Genome type
Are not expressed and must be spliced out of RNA before it leaves the nucleus...
Exons
Introns
Phenotype
Genome type
The process in which gene expression is prevented?
Methylation
Acetylation
Carbonization
Reduction
What letter stands for the growing peptide chain?
C
A
E
F
What letter stands for the amino acid?
C
A
E
F
What letter stands for the mRNA?
C
A
E
F
What letter stands for the ribosome small subunit?
C
A
E
F
What letter stands for the tRNA?
C
A
D
F
What letter stands for the ribosome large subunit?
C
A
B
F
Which type of ribosome produces proteins for use in the cell and are found in the cytoplasm?
Bound Ribosomes
Free Ribosomes
Which type of ribosome synthesizes proteins for secretion and lysosomes?
Bound Ribosomes
Free Ribosomes
Why can translation occur immediately after transcription in prokaryotes?
Several ribosomes can work on one strand of mRNA
Because that's the way it is
The DNA is not wound
It is directly in the Nuclues
