Quiz
Genomes and gene technologies
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Perguntas do quiz (26)
1What is a genome?
- AIt is all of the genes possessed by an individual organisms.This includes the sequence of bases in the entire DNA of an organism.
- BIt is the sequencing of an organism.
- CIt is a section of the gene possessed by an organism.
- DThis is all the genes possessed by all of the organisms in a similar species.
2What are the advantages of genome sequencing?
- AShows evolutionary relationships.
- BShows the effects of mutations.
- CShows the possibility of a mutation.
- DShows the alleles for a disease.
- EShows the importance of bases in DNA.
- FShows how genes can be manipulated for human benefit.
- GHelps create bio-fortified products.
3'Micro-satellites are long sequences of DNA'.
- AVerdadeiro
- BFalso
4'BACs stands for Bacterial Artificial Chromosomes which are man-made plasmids'.
- AVerdadeiro
- BFalso
5Why are computer programmes used in genome sequencing?
- ATo compare the overlapping regions of DNA.
- BTo check the criminals of the world.
- CTo compare whether the genes can be bio-fortified.
6What is genetic fingerprinting?
- ADNA fragmentation and electrophoresis gives banding patterns unique to individuals.
- BIt gives the sequence of DNA.
- CIt obtains a particular gene and inserted into a recipient's organism.
- DComparing genes for the same proteins across a range of organisms.
7What is recombinant DNA?
- AIt is made by cutting DNA and sticking it together.
- BThis occurs by conjugation of bacteria which binds two forms of plasmids.
8'Restriction enzymes restrict the DNA from transcribing mRNA'.
- AVerdadeiro
- BFalso
9Why is DNA heated in automated sequencing?
- ATo break the hydrogen bonds (by denaturing them) which gives two polynucleotide chains.
- BTo create a number of bases that can be amplified by PCR.
- CTo separate the fragments for electrophoresis.
10Why do the DNA fragments in electrophoresis move to the anode (positively charged electrode)?
- AThis is because they are positively charged and two positive separates them.
- BThis is because they are negatively charged and the negative DNA fragments are attracted to the anode.
11Why is buffer solution required in electrophoresis?
- ATo separate the sections of DNA.
- BTo conduct electricity.
12'The longer the fragments, the quicker they move' in electrophoresis.
- AVerdadeiro
- BFalso
13Primers bind at the complementary regions of DNA and probes bind at the start of DNA.
- AVerdadeiro
- BFalso
14Annealing is binding of base sequences.
- AVerdadeiro
- BFalso
15What are sticky ends?
- AThey are short, unpaired, exposed bases.
- BThey are bases that are attached to restriction enzymes.
16The insulin comes from beta cells in the liver.
- AVerdadeiro
- BFalso
17How is the DNA formed from the insulin gene?
- AmRNA is extracted and incubated via reverse transcriptase which makes DNA using RNA.
- BIt is completed by conjuration of bacteria formed in fermenters.
- CIt is completed by the ligase enzyme.
18Why is the ligase enzyme used to make insulin?
- AIt combines the insulin DNA and the plasmid from the bacteria (usually E. Coli).
- BCreates the backbone of DNA.
19Golden rice is bio-fortified with vitamin B.
- AVerdadeiro
- BFalso
20Where is beta carotene extracted from?
- ADaffodils
- BBacterium: Erwina uredonma
- CLillies
- DWheat
21Xenotransplantation is the transplantation of cells, tissues or organs between animals of different species.
- AVerdadeiro
- BFalso
22Gene therapy involves replacing a gene that are not functioning.
- AVerdadeiro
- BFalso
23Somatic gene therapy only affects skin cells.
- AVerdadeiro
- BFalso
24Genes are passed onto offspring in germ line gene therapy.
- AVerdadeiro
- BFalso
25What are the ethical effects of microorganisms?
- ACross contamination of other microorganisms.
- BMutations of microorganisms which could lead to resistance.
- CProduce deadly toxins that lay in our food.
26What are the temperatures of PCR that need to be set?
- A95, 55 and 72.
- B75, 80 and 40.
- C60, 40 and 81.
- D110, 80 and 41.
Informações
- Descrição
- OCR A2 biology.
- Autor
- Bethany.
- Idioma
- English
- Visualizações
- 197
- Etiquetas
- Avaliação
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