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- In gel electrophoresis of DNA, the different bands in the final gel form because the DNA molecules .
- are from different organisms
- have different lengths
- have different nucleotide compositions
- have different genes
- In the reproductive cloning of an animal, the genome of the cloned individual comes from .
- a sperm cell
- an egg cell
- any gamete cell
- a body cell
- What carries a gene from one organism into a bacteria cell?
- a plasmid
- an electrophoresis gel
- a restriction enzyme
- polymerase chain reaction
- What is a genetically modified organism (GMO)?
- a plant with certain genes removed
- an organism with an artificially altered genome
- a hybrid organism
- any agricultural organism produced by breeding or biotechnology
- What is the role of Agrobacteriumtumefaciensin the production of transgenic plants?
- Genes from A.tumefaciensare inserted into plant DNA to give the plant different traits.
- Transgenic plants have been given resistance to the pest A.tumefaciens.
- A.tumefaciensis used as a vector to move genes into plant cells.
- Plant genes are incorporated into the genome of Agrobacteriumtumefaciens.
- What is the most challenging issue facing genome sequencing?
- the inability to develop fast and accurate sequencing techniques
- the ethics of using information from genomes at the individual level
- the availability and stability of DNA
- all of the above
- Genomics can be used in agriculture to:
- generate new hybrid strains
- improve disease resistance
- improve yield
- all of the above
- What kind of diseases are studied using genome-wide association studies?
- viral diseases
- single-gene inherited diseases
- diseases caused by multiple genes
- diseases caused by environmental factors
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