NETTIE STEVENS PRESENTATION

NETTIE STEVENS

INDEX

6. Timeline

5. Her findings

4. Career

3. Education

2. Early life

7. Ending note

1. General Information about Nettie

General information about nettie

• Nettie Marie Stevens, was born on July 7 1861, and passed away on May 4, 1912. She is considered to be one of the world's revolutionary scientists, since with her findings concerning biology , she changed the world of genetics.

• Her occupation was a genetists, and she made extensive reaserch regarding sex chromosomes and discoverd the X and Y chromosomes.

her Early life

• Beside from the fact that the the father was the only person accountable for the family , his occupation, carpentry , provided sufficient education for all of his children, including Nettie.

• Nettie was born on Luly 7, 1861, in Cavendish , Vermont.

She was one of the children of Julia and Efrem Stevens.

• Due to the unplesant occurence, of her mother's death , the whole family was forced to move to Massachussets, where the family was taken care by the father.

nettie's education

1. Stevens was one of the top students among her sisters at Westford Academy, where she was one of the first to graduate.

2. After graduating, she moved to New Hampshire, were she taught Biology, Zoology , Latin and other. 3. However she had a big desire of continuing her studies, hence she returned in academia, and more specifically, in Westfield State Univeristy, where she completed a 4 year course in only 2 years. 4. Furthermore, she attained here B.A in 1899, at Stanford University.

5. Later on, after her B.A ., she completed her PhD in cytology , where she contaimplated mostly on multicellular organisms, the developpment of sperm eggs and cell devision.

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HER FINDINGS

HER findings collecton includes:

The finding that eventually, the sex of the embryo depends on the presense or absense of Y chromosome.

The detection that there are chromosomes that are paired together(such as XY chromosome pair.)

Iidentification of the chromosome Y.

The distingish of the chromosomes in somes specific types of cells, which leads to the sex differentiation

the year she passed away

her findings concerning sex detemination

obtain of ba form stanford uni

graduation from westford academy

Birth of Nettie

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1912

1905

1899

1880

Timeline

1861

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