Inventions & Inventors

Question 1

1856-63
Gregor Mendel

Answer 1

Laws of inheritance

Question 2

1900
De vries, correns and voh tschermak

Answer 2

Rediscovered Mendels results

Question 3

1962
Walter Sutton and theodore boveri

Answer 3

Proposed chromosomal theory of inheritance

Question 4

Thomas hunt Morgan

Answer 4

Experimental verification of chromosomal theory of inheritance

Question 5

1866
Langdon down

Answer 5

Described Down syndrome

Question 6

1869
Friedrich miescher

Answer 6

Identified DNA as an acidic substance in nucleus (named it ‘nuclein’)

Question 7

1953
James Watson
Francis crick

Answer 7

Proposed double helical structure of DNA

Question 8

Erwin chargaff

Answer 8

Ratios between adenine & thymine + guanine & cytosine are constant and equal once

Question 9

1928
Frederick griffith

Answer 9

Transforming principals
[streptococcus pneumonia]

Question 10

1933-44
Oswald Avery
Colin macleod
Maclyn mcCarthy

Answer 10

Biochemical charaterization of transforming principals

Question 11

1952
Alfred harshey
Martha chase

Answer 11

Experimental prove that genetic material is DNA [worked with bacteriophages]

Question 12

1953
Watson & crick

Answer 12

Proposed ‘semi-conservative nature of DNA replication’

Question 13

1958
Mathew meselson &
Franklin stahl

Answer 13

Experimental proof for semi-conservative nature of DNA replication

Question 14

George Gamow

Answer 14

Genetic code

Question 15

Har Govind Khurana

Answer 15

Developed chemical method to synthesize RNA molecules with defined combination of bases
[homopolymers and copolymers]

Question 16

Marshal nirenberg

Answer 16

Developed cell- free system for protein synthesis

Question 17

Francois Jacob &
Jacque Monod

Answer 17

The lac operon

Question 18

Alec jeffreys

Answer 18

DNA fingerprinting

Question 19

Early Greek thinkers

Answer 19

Theory of panspermia

Question 20

Louis Pasteur

Answer 20

Life came from pre-existing life

Question 21

Oparin & haldane

Answer 21

Proposed chemical evolution of life

Question 22

S.L. Miller

Answer 22

Experimental proof for chemical evolution of life

Question 23

Charles Darwin

Answer 23

Based on observation made during a sea vovage in a sail ship (H.M.S beagle) concludes that existing life forms share similarities not only among themselves but also with life forms that existed millions of years ago

Question 24

Charles Darwin

Answer 24

Natural selection & survival of fittests

Question 25

Alfred wallace

Answer 25

Co-developed theory of nayu selection with Darwin

Question 26

Ernst haeckel

Answer 26

Embryological sully of evolution

Question 27

Karl Ernst von baer

Answer 27

Disapproved embryological support for evolution

Question 28

Lamarck

Answer 28

Proposed that evolution of life is driven by use and disuse of organs

Question 29

Thomas malthus

Answer 29

His work inspired Darwin to refine natural selection by starting a reason for meaningfull conpetition between members in same species

Question 30

Hugo de vries

Answer 30

Worked on evening primrose to put forth the idea of mutations [mutation caused speciation = saltation]

Question 31

Hardy-Weinberg

Answer 31

Proposed that frequency of occur of alleles of a gene or a locus remain fixed and same through generations

Question 32

**1980s** Karu Mullis

Answer 32

Developed PCR (polymerase chain reaction)

Question 33

**1972** Stanley cohen & herbert boyer

Answer 33

Constructed the first recombinant DNA

Question 34

**1983** Eli Lilly

Answer 34

Synthesised human insulin

Question 35

Robert constanza

Answer 35

Put price tags on nature’s life support service

Question 36

Edward Wilson

Answer 36

Father of biodiversity [described the combined diversity at all the levels of biological organisations]

Question 37

Ramesh chandra dagar

Answer 37

Integrated organic farming [included bee-keeping, dairy management, water harvesting composting & agriculture in a chain of processes]

Question 38

**1974** Sunderlal bahuguna

Answer 38

Chipko movement leader

Question 39

Alexander vin humbolt

Answer 39

Species area relationships

Question 40

Paul ehrlich

Answer 40

Rivet popper hypothesis