Spinal muscular atrophy (SMA) is a group of inherited disorders that cause progressive muscle degeneration and weakness, which is caused by gene mutations in the ________ and VAPB genes.
A. SNM1
B. SMN1
C. SMN3
D. SMN4
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Griffith's experiment, conducted in ________ by Frederick Griffith (1879-1941) who was a British medical officer, was one of the first experiments suggesting that bacteria are capable of transferring genetic information through a process known as transformation.
A. 1920
B. 1924
C. 1928
D. 1935
GeneticengineeringwasfirstpresentedattheSixthInternationalCongressofGeneticsheldin _______.
A. 1925
B. 1930
C. 1932
D. 1935
The exact nature of the transforming principle (DNA) was verified in the experiments done by Avery, McLeod, and McCarty in ______ and by Hershey and Chase in 1952.
A. 1936
B. 1940
C. 1944
D. 1950
The medical geneticist Clyde E. Keeler (1900-1994) in _______ was probably the first to use the term 'gene therapy', although the process he was describing (the correction of gene-based deviations in plants and animals) was not envisaged as an effective therapeutic technique to treat genetic diseases in man.
A. 1940
B. 1947
C. 1952
D. 1957