Quiz
DNA Mutations and Cancer
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Perguntas do quiz (24)
1Polyribosomes are:
- AMultiple ribosomes along a string of mRNA simultaneously copying the message to create proteins.
- BRibosomes that enter the nucleus to copy and transcribe DNA strands.
- CMultiple ribosomes that copy a mRNA strand one at a time - one ribosome must finish copying the strand before the next can start.
- DThe organelles in the cell where ribosomes are manufactured and distributed from.
2The DNA from ONE cell in the human body, when stretched out, is the length of:
- A2 metres.
- B2 light years.
- CThe approximate length of the cell.
- D20 cm.
3Every genetic mutation results in a displaying phenotype.
- AVerdadeiro
- BFalso
4DNA replication is a perfect process - Each copy of the DNA is completely identical to the DNA it was created from.
- AVerdadeiro
- BFalso
5Cancer, despite having been around for a long period of time, has been an extremely difficult disease to eradicate. This is because: (check all applicable answers)
- ACancer is not caused by one specific mutation, but many, many small mutations.
- BWhile cancer is commonly weak to the human immune system, it can use other proteins to 'hide' itself, stopping the immune system from noticing and eliminating it.
- CEven if doctors remove the affected area, there is no guarantee metastatic cells haven't already left the area.
- DCancer is always active throughout the entire body - there is no localization of it, so it cannot be removed.
- ECancer has its own DNA repairers, and can easily repair any damage done to it by the immune system.
6Even if DNA mutates, the cell has a natural process of searching for and fixing mutated strands called the:
- ADNA Repair.
- BMutation Removal.
- CMutational Cease and Desist.
- DDNA spliceation.
7Mutation is:
- AAny spontaneous change in an organism's DNA sequence.
- BA negative affliction occuring to an organism on the cellular level.
- CA genetically undesirable, hereditary trait.
- DThe dominant gene from each pair of chromosomes.
8The polyribosomes move long the string of mRNA in the direction 3' to 5'.
- AVerdadeiro
- BFalso
9A mutation can become a heritable, genetic mutation when it occurs:
- AIn any part of the body.
- BIn the sperm or ovum.
- COn the surface of the skin.
- DAs the sperm and ovum form the zygote.
10Consider this image of a rainbow bead necklace. If we were comparing it to the protein production process, it would be most appropriate to say that:
- AThe black cord represents the mRNA, and the beads represent the polyribosomes.
- BThe beads represent the mRNA, and the black cord represents the polyribosomes.
- CThe black cord represents the DNA, and the beads represent the mRNA.
- DThe black cord represents the proteins, and the beads represent the DNA polymerase.
11The most common type of mutation is:
- APoint mutation
- BInsertion mutation
- CDeletion mutation
- DSharp mutation
12Consider the sentence: THE BAT HAD THE HAT. If this were to be a gene sequence, the sentence that would best represent a deletion mutation would be:
- ATHE BAT HAD THE CAT.
- BTHE CAT HAD THE HAT.
- CTHE BAT ADT HEH AT.
- DTHH EBA THA DTH EHA T.
13Point mutations can be broken down into three different types. Silent mutations are mutations that [blank_start]do not change the amino acid sequence[blank_end] of the protein. Missense mutations are mutations that [blank_start]do cause changes in the amino acid[blank_end] sequence of the protein. Lastly, Nonsense mutations [blank_start]cause a stop in the amino acid sequence[blank_end] of the protein.
- Ado not change the amino acid sequence
- Bdo cause change in the sequence
- Care not really mutations
- Dcause changes in the amino acid
- Edo not change the amino acid
- Fcreate a stop in the amino acid
- Gcause a stop in the amino acid sequence
- Hdo not change the amino acid sequence
- Ichange the amino acid sequence
14Insertion or deletion mutations result in a 'frameshift' mutation that affects all of the following amino acid sequences.
- AVerdadeiro
- BFalso
15Commonly, patients with sickle cell anemia will not get malaria. This is because:
- AThe sickle cells do not carry enough oxygen to be good hosts for the malaria parasite.
- BMalaria and sickle cell anemia affect different regions in the world.
- CPatients with sickle cell anemia do get malaria.
16The protein formed from an amino base sequence is determined in sets of:
- AOne base.
- BTwo bases.
- CThree bases.
- DFour bases.
17The amount of cells produced in the human lifespan is equal to:
- A10^16
- B10^14
- C12^14
- D12^16
18Lung cancer became a much more prominent issue around the 1920s. This is because:
- AHumans as a species became more vulnerable to cancers of the lung around this time.
- BCigarettes became more frequently consumed approximately 20 years previous.
- CLung cancer did not become more prominent around the 1920s.
- DThe trend of inhaling helium became more frequent around this time.
19Approximately this many people die from smoking habits in the US each year.
- A480,000.
- B120,000.
- C20,000.
- D250,000.
20What is the leading cause of cancer deaths in the United States?
- AProstate cancer.
- BColon cancer.
- CBreast cancer.
- DLung cancer.
21In 1992, the US Environmental Protection Agency classified tobacco smoke as the most dangerous cancer-causing agent in humans.
- AVerdadeiro
- BFalso
22Smoking accounts for what percentage of lung cancer cases?
- A80%.
- B20%.
- C50%.
- D100%.
23This percentage of all cancer death is due to smoking.
- A30%.
- B10%.
- C80%.
- D50%.
24Implicatory denial is:
- ADenying reality as a way to avoid uncomfortable questions.
- BImplicating that you're not denying a question when you are.
- CDenying a question by implicating another question.
- DSaying that nicotine is addictive.
Informações
- Descrição
- A brief quiz on information from the lectures: Oct 25, Nov 1, Nov 3.
- Autor
- Brianna Murphy
- Idioma
- English
- Visualizações
- 472
- Etiquetas
- Avaliação
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