Bio 1801 Review
Quiz by Dominik Bettini
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- Q1
What theory about DNA replication is correct?
Dispersive Replication
Semiconservative Replication
Conservative Replication
Semidispersive Replication
30s - Q2
What is an Okazaki Fragment?
An enzyme that unwindsthe double helical DNA by ‘melting’ the hydrogen bonds between bases.
An enzyme responsible for maintenance of the length of telomeres
An extra piece of DNA that was discarded before the beginning of DNA replication
Short fragments of DNA created during discontinuous DNA replication
30s - Q3
What is polymerization?
The process of monomer molecules reacting together to form polymers
The process of using RNA to form polymers
The process of hydrolytic reactions forming polymers
The process of polymers breaking down into simpler molecules
30s - Q4
What were the scientific contributions of Rosalind Franklin and Maurice Wilkins?
Establishment of the ratio of nucleotide bases
Usage of X-ray crystallography to measure distances between atoms in DNA
Discovered adenine
Tested the hypotheses of DNA replication
30s - Q5
What is the function of the enzyme Helicase?
To bind and stabilize the single-stranded regions of DNA created by other enzymes
Replaces the RNA primer with DNA
To unwind the double helical DNA by breaking the hydrogen bonds between bases
To cut and rejoin DNA ahead of helicase to relieve tension from unwinding
30s - Q6
What molecules make up a Phosphodiester bond?
2 nucleotide groups and 1 phosphate group
2 sugar hydroxyl groups and 1 phosphate group
1 sugar hydroxyl group and 2 phosphate groups
2 semiphosphodietic bonds
30s - Q7
Which number refers to SSBPs in this model?
3
1
4
2
5
30s - Q8
Which bond type is the strongest?
Adenine and Thymine
Guanine and Cytosine
Guanine and Adenine
Cytosine and Thymine
30s - Q9
Which enzyme acts as a "cap" for protecting chromosomes during DNA replication?
Primase
Telomerase
Ligase
Polymerase
30s - Q10
Which of the following best explains the process of homologous recombination?
Genetic information is exchanged between vastly different DNA and RNA strands during mitosis
Process of binding and stabilize the single-stranded regions of DNA created by helicase
The process of replicating DNA in prokaryotic organisms
Genetic information is exchanged between two similar or identical DNA strands to repair harmful breaks
30s - Q11
What best explains the "one gene - one enzyme" hypothesis?
An enzyme can spontaneously generate exactly 1 gene
An enzyme can code for exactly 1 gene
Each gene controls the synthesis or activity of a single enzyme
Beadle & Tatum's theory that one gene can direct the formation of any enzyme
30s - Q12
What best decribes the type of mutation where fragments of chromosomes reattach to different chromosomes?
Deletion
Duplication
Translocation
Inversion
30s - Q13
Which of these eukaryotic RNA polymerase names and functions is INCORRECT?
Pol III - used to produce each of the tRNAs
Pol II - used to produce the protein-encoding RNAs and the micro RNAs
Pol III - used to produce a small ribosomal subunit
Pol II - used to produce a large ribosomal subunit
Pol I - used to produce a large ribosomal subunit
30s - Q14
True or false: translation describes the synthesis of proteins from an RNA template?
False
True
30s - Q15
What best describes what an intron is?
A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence
A nucleotide sequence within a gene that is expressed in the final RNA product
A nucleotide sequence within a gene that is not expressed in the final RNA product
Nucleic acid that aids in removing an exon from an RNA sequence in the final product
30s
