WorksheetsBarbara McClintock
Total questions: 14
Worksheet time: 7mins
What was Barbara McClintock studying when she discovered transposable elements?
Rice
Mice
Corn
Fruit flies
In what field did Barbara McClintock receive her Ph.D.?
Genetics
Agriculture
Zoology
Botany
The branch of genetics that studies the structure of DNA and any abnormalities that it has in a cell’s nucleus is called _______________.
Cytogenetics
Epigenetics
Kinesiology
Karyotopology
What was the title of the book that Barbara McClintock co-authored about maize?
The Maize Genome
Molecular Genetic Approaches to Maize Improvement
The Chromosomal Constitution of Races of Maize
Maize Genetics and Breeding in the 20th Century
Which president awarded Barbara McClintock the National Medal of Science?
Richard Nixon
Jimmy Carter
Lyndon B. Johnson
John F. Kennedy
Barbara McClintock was the first __________ to receive the MacArthur Foundation Grant.
American
Woman
Person
Biologist
What do transposable elements do?
Aid in transcription
Delete junk DNA
Cause a cell to perform apoptosis
Jump to other areas of a chromosome
The first transposable elements that Barbara McClintock discovered are abbreviated as Ac and Ds. What do those abbreviations stand for?
Activator and Dissociation
Activator and Dislocation
Actuation and Disconnect
Articulation and Dissociation
Which of the following describes the Ds gene as discovered by Barbara McClintock?
A recessive allele on chromosome 9 that causes the dark brown phenotype in maize.
A dominant allele on chromosome 9 that causes the purple phenotype in maize.
A factor that impacts the expression of another gene In maize.
The genetic location on chromosome 9 where genetic breakage occurs in maize.
How many types of transposition are there?
1
2
3
4
The effects of transposons can include
Deletions
Inversions
Disruption of gene expression
All of the above
What enzyme facilitates transposition?
What enzyme facilitates transposition?
DNA polymerase
RNA polymerase
Reverse transcriptase
During transposition, what do retrotransposons use reverse transcriptase for?
To insert retrotransposon DNA into the chromosome
To synthesize RNA copies of retrotransposon RNA
To synthesize DNA copies of retrotransposon RNA
To degrade excess copies of retrotransposon RNA
Transposition can be
Replicative only
Non-replicative only
Both a and b are correct
None of the above
