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Gregor Mendel
Mendel used pea plants to study traits of inheiritance. He is known as the "Father of Genetics" -
Friedrich Miescher
Friedrich isolated the nuclein from the nucleus, meaning he identified DNA as a distinct molecule. -
Walther Flemming
He was a founder of cytogenetics. He was the first to observe the behavior of chromosomes in the nucleus and during mitosis.. -
Walter Sutton
He discovered chromosomes contained Genes. Meaning, he found out that chromosomes involve units for inheritance in distinct pairs. -
Wilson and Stevens
Discovered sex chromosomes. Said females have 2 'x' chromosomes, while males have an 'x' and a 'y' chromosome. Inorder to test this, Wilson and Stevens used insects to study. -
Thomas Hunt Morgan
This American Scientist discovered the role of chromosomes play in heredity (sex-linked) He came to this result after observing the colored eyes of Fruit Flies. -
Frederick Griffith
An English man by the name of Frederick Griffith found that DNA is a molecule of inheretence after giving mice pneumonia. -
Barbra McClintock
During both the 1940's and 1950's Barbra McClintok Discovered transposition (The ability of genes to turn on and off physical characteristics) -
Beadle and Tatum
George Beadle and Edward Tatum two American Scientists discovered that genes manufacture proteins by preforming experiments with a bread mold. -
Oswald Avery
DNA is the material that genes and chromosomes are made of. -
Maurice Wilkins
A English-New Zealander, Maurice Wilkins helped develop x-ray technology and took the picture of DNA that Watson and Crick later used to justify their double helix shape. -
Edwin Chargaff
Chargaff's rules. Rule 1: In natural DNA, the amount of guanine equals the amount of cytosine, and adenine and thymine. Rule 2: Compositions of DNA vary from one organism to another. -
Rosalind Franklin
She found that DNA could crystallize into 2 forms, A and B form. She made a laboratory method to seperate the two forms. -
Hershey and Chase
Alfred Hershey and Martha Chase performed an experiment to prove that DNA was not protein, instead it was genetic material. The experiment is known as the Hershey Chase Experiment. -
Watson and Crick
Two English scientists, James Watson and Francis Crick discovered the structure of DNA (Double Helix) -
Joe Hin Tijo
This Chinese-American Geneticist counted all of the chromosomes in the human body (23 pairs, 46 total) -
Messelson and Stahl
When the double helix DNA strand replicates each of the strands consisted of one from original helix, and a newly synthisized one. -
Cohen and Boyer
Discovered a way to clone molecules that were genetically engineered in foreign cells. -
Paul Berg
Paul Berg created the first recombinant DNA, it is called the Berg Letter. He had to stop the experiment due to dangers, but in 1980, he was able to continue the research. -
Fred Sanger
This English geneticist developed the chain termination method. He is also the only person ever to recieve two Nobel Peace Prizes in Chemistry. -
Howard Temin and David Baltimore
They discovered transcriptase which is an enzyme that makes DNA from an RNA template. Isolating enzymes of DNA will be important for genetic engineering. And i chose to use Temin's picture, because he's better looking. -
Kary Mullis
He developed the polymerase chain reaction, which is a way to make copies of DNA. -
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Collins and Venter
Francis Collins and John Venter were the leading minds behind the Human Genome Project. The product of this research was an accurate map of 20,000-25,000 human genes. -
Calgene
Produced the first and grew the first genetically made food (tomato), which was able to be safetly eaten by humans.
