Bio HL Scientists

Davison-Danelli

Wrong Phospholipid Bilayer

Miller-Urey

First life- right conditions (amino acids)

Recreated conditions of prebiotic earth

Fredrick Woehler

Disproved vitalism (artificial synthesis of Urea)

Vitalism- organic matter can only be synthesised by living things

Meselson- Stahl

Using Nitrogen bases proved DNA is semiconservative

Used radioactive isotopes of nitrogen

Mendel

Inheritance using pea plants (Homozygous/ Heterozygous)

Linnaeus

Binomial Nomenclature

Singer-Nicholson

Cell membrane contains embedded protein channels

Proteins are embedded within the phospholipid bilayer

Tagged with fluorescent markers

Louis Pasteur

Disproved spontaneous generation (Broth)

Bacterial growth when exposed

Biogenesis- life arises from life

Watson-Crick

Made first model of DNA double helix

Antiparallel Strands

Complementary base pairs

Cairns

Pioneered the measurement of chromosome length (Radioactive thymidine)

Allowed chromosomes to be visualized when uncoiled

Allowing for a more accurate measurement of size

Darwin- Wallace

Natural selection and survival of the fittest

Florey- Chain

Demonstrated use of penicillin on mice