Podcast
Questions and Answers
What discovery did Nettie Stevens make regarding sex determination in animals?
What discovery did Nettie Stevens make regarding sex determination in animals?
- Sex is influenced by behavioral characteristics.
- Sex is determined by specific chromosomes. (correct)
- Sex is determined by environmental factors.
- Sex is dictated solely by physical traits.
How did Nettie Stevens conduct her research on sex determination?
How did Nettie Stevens conduct her research on sex determination?
- By examining external physiological traits.
- By studying reproductive cells under a microscope. (correct)
- By analyzing the DNA structure of mammals.
- Through field observations of wild insects.
Which chromosomes do male mealworms carry according to Nettie Stevens's findings?
Which chromosomes do male mealworms carry according to Nettie Stevens's findings?
- Both X and Y chromosomes. (correct)
- Only X chromosomes.
- Only Y chromosomes.
- Neither X nor Y chromosomes.
In what year did Nettie Stevens publish her research on sex determination?
In what year did Nettie Stevens publish her research on sex determination?
What was the primary subject of Nettie Stevens's landmark research?
What was the primary subject of Nettie Stevens's landmark research?
Which notable scientist mentored Nettie Stevens during her PhD studies?
Which notable scientist mentored Nettie Stevens during her PhD studies?
What factor largely contributed to the delayed recognition of Nettie Stevens's work?
What factor largely contributed to the delayed recognition of Nettie Stevens's work?
What significant role did the Carnegie Institute play in Nettie Stevens's career?
What significant role did the Carnegie Institute play in Nettie Stevens's career?
Flashcards
Who was Nettie Stevens?
Who was Nettie Stevens?
A scientist who made significant contributions to the understanding of sex determination by chromosomes.
What is sex determination?
What is sex determination?
A term used to describe the process of determining an organism's sex based on its chromosomes.
What organism did Nettie Stevens study?
What organism did Nettie Stevens study?
Nettie Stevens' research focused on mealworms and their reproductive cells.
What did Stevens find about sex chromosomes?
What did Stevens find about sex chromosomes?
Stevens' discovery showed that males have one X and one Y chromosome, while females have two X chromosomes.
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What did Stevens prove about sex determination?
What did Stevens prove about sex determination?
Stevens' research helped establish that sex is determined by chromosomes and not external factors.
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How was Stevens' work recognized?
How was Stevens' work recognized?
Stevens was overlooked during her lifetime, but her work is now widely recognized for its significant contributions to genetics.
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What was the impact of Stevens' work?
What was the impact of Stevens' work?
Through her meticulous research, Stevens laid the foundation for our understanding of how sex is determined in animals.
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What major concept did Stevens' research support?
What major concept did Stevens' research support?
Stevens' research, along with similar findings by Edmund Beecher Wilson, established the concept of chromosomal inheritance.
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