CHAPTER 2 Flashcards
(62 cards)
When did microscopic biology begin
1665
Who discovered that organisms are made up of cells and created an improved version of the microscope
Robert Hooke
When did Robert Hooke discover that organisms are made up of cells
1635-1703
Who expanded the study of cells in the 1830s
Matthias Schleiden and Theodor Schwann
Who discovered the basic rules of heredity of garden peas
Gregor Mendel
When was the basic rules of heredity discovered
1865
Who discovered DNA and called it nuclein
Johann Friedrich Miescher
when was DNA called nuclein
1869
Who showed chromosomes are composed of nuclein
Edward Zacharias
When did they discover that chromosomes are composed of nuclein
1881
Who renamed nuclein to nucleic acid
Richard Altmann
whn was nuclein renamed to nucleic acid
1899
When was the chemical structures of 20 amino acids had been identified
1900
Who won a nobel prize by showing amino acids are linked and form proteins
Emil Hermann Fischer
When did Emil Hermann Fischer won th nobel prize
1902
Who discovered that genes on chromosome are the secrete unit of heredity
Thomas Hunt Morgan
When was genes on chromosome dicovered to be the discrete units o heredity
1911
who discovered RNA
Pheobus Aaron Theodore Lerene
when was RNA discovered
1911
Who identified that genes make proteins
George Beadle and Edward Tatum
When was it identified that genes makes proteins
1941
who found that Cytosine complements Guanine and Adenine complement Thymine
Edwin Chargaff
Ratio of A:T
1:1
Ratio of G:C
1:1