What did George Beetle and Edward Tatum demonstrate through their experiments on Neurospora crassa?

Beetle and Tatum's Genetic Discoveries

Interactive Video
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Biology
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10th - 12th Grade
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Hard

Patricia Brown
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Genes do not affect enzyme production.
Each gene encodes one enzyme.
Each gene encodes multiple enzymes.
Enzymes are not related to genes.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of Neurospora being a haploid organism in genetic experiments?
It does not affect genetic studies.
It complicates genetic analysis.
It simplifies the study of dominant and recessive alleles.
It has multiple copies of each gene.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did Beetle and Tatum induce mutations in Neurospora?
By using chemical mutagens.
By exposing it to ultraviolet light.
By using X-rays.
By altering its diet.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the first mutant discovered by Beetle and Tatum unable to synthesize?
Vitamin C
Vitamin B6
Sugars
Amino acids
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method did Beetle and Tatum use to identify specific metabolic pathway defects in mutants?
Genetic sequencing
Microscopic examination
Nutritional supplementation
Chemical analysis
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which amino acid's synthesis pathway was studied by Beetle and Tatum using mutants?
Lysine
Arginine
Histidine
Glutamine
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did the discovery of different mutants needing specific supplements demonstrate?
Genes do not affect metabolic pathways.
Each gene affects a specific step in a pathway.
Each gene affects multiple pathways.
All genes are identical.
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