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Chemistry Inorganic > Evolution > Flashcards

Evolution Flashcards

1
Q

Drypoithecus and ramapithecus existed

A

15mya

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2
Q

Man like primates walked in Eastern Africa who were not more than 4 feet but walked upright

A

3 - 4 mya

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3
Q

Whose fossils were discovered in Tanzania and Ethiopia

A

Man like primates

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4
Q

Australopithecines lived in East African grassland about

A

2 mya

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5
Q

Who hunted with stone weapons but essentially ate fruits

A

Australopithecines

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6
Q

Brain capacity of homo habilis is

A

650 - 800 cc

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7
Q

Fossils discovered in Java at 1891were fossils of

A

Homo erectus

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8
Q

Homo elects existed abt

A

1.5 mya

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9
Q

The brain capacity of homo erectus is

A

900 cc

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10
Q

Which all evolutionary men probably did not ate meat

A

Australopithecines and homo habits

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11
Q

Which evolutionary men probably ate meat

A

Homo erectus

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12
Q

Brain size of Neanderthal men were

A

1400 cc

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13
Q

During ice age which arose

A

Modern homo sapiens

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14
Q

First cellular forms of life appeared on earth about

A

2000 million years ago

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15
Q

Invertebrates were formed

A

500 mya

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16
Q

Jawless fish originated about and fish with stout and strong fin existed in

A

350 mya

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17
Q
A
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18
Q

Sea weedsand so e p.ants arose approx

A

320 mya

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18
Q

Coelocanth was rediscovered in

A

1938 in south Africa

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19
Q

Icyhyosaures existed

A

200 mya

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19
Q

Fish with stout fins were ancestors of present day

A

Frogs and salamanders

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20
Q

Biggest land dinosaurs was

A

Tyrranoserous Rex which was 20 feet

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21
Q

Dinosaurs extincted about

A

About 65 mya

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22
Q

First mammals were

A

Like shrews

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23
Q

Which type of natural selection is useful for speciation

A

Disruptive

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24
Q

The factors that affect Hardy weinberg equilibrium is

A

Genetic migration or gene flow
Genetic drift
Natural selection
Genetic Recombination
Mutation

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25
Q

Example of founder effect I’d

A

Darwin finches

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26
Q

Natural selection in which more people acquire mean value is

A

Stabilising

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27
Q

The natural selection in which people acquire ChRECTERS other than
Mean value is

A

Directional

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27
Q

The two key concepts of darwinian theory of evolution is

A

Branching descent and natural selection

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27
Q

HugodeVries discovered the idea of Mutation while working on

A

Evening prim rose

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28
Q

The use and disuse theory was proposed by

A

Lamarck

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28
Q

The user and disuse theory was proven wrong by

A

Germ plasm theory

28
Q

Whose work influenced darwin

A

Thomas Malthus

28
Q

Examples of adaptive radiation is

A

Darwin finches and Australian marsupials

29
Q

Embroyological support for evolution was given by

A

Ernest haeckel

30
Q

Embroyological support of evolution was disapproved by

A

Karl Ernst Von Baer

31
Q

Sweet potato is

A

Root modification

32
Q

Potato is a

A

Stem modification

33
Q

Evolution by anthropogenic action tells us that evolution is a

A

Stochastic process and not a directed process

34
Q

Who came to Similar conclusions like that of Darwin

A

Alfred wallace

35
Q

Alfred wallace worked in

A

Malay Archipelago

36
Q

Darwin worked in

A

Galappagos island

37
Q

How old is universe

A

20 billion yrs old

38
Q

Age of earth is

A

4.5 billion yrs old

39
Q

Life formed

A

4 billion yrs back or 500 million yrs after the formation of earth

40
Q

TTheory of Spontaneous generation was disapproved by

A

Loius pasture

41
Q

The conditions on primitive earth was

A

High temp, Volcanic eruption ,storms, reducing atmosphere containing CH4 and NH3

42
Q

Similar atmosphere condition as that of primitive earth was created by

A

SL Miller ( 1953)

43
Q

First non cellular forms of life originated about

A

3 billion yrs back

44
Q

Want is biogenesis

A

The first formed life arose slowly through evolutionary forces from non living molecules is accepted by majority

45
Q

According to thery of special creation earth is

A

4000 yrs old

46
Q

Sl Miller created a temp of

47
Q

The correct order of evolution of first life forms were

A

Organic monomers, organic polymers, formation of protobionts, dna

48
Q

Miller’s experiment did not contain which Amino acid

A

Glutamic acid

49
Q

The first organisms were

A

Chemoheterotrophs

50
Q

Origin of species was written by

51
Q

What is common to whale, seal and shark

A

Converg3nt evolution

52
Q

An important proof of organic evolution is

A

Homologous organs and vestigial organs

52
Q

Most accurate method for dating fossils is

A

Electron spin resonance method

52
Q

What evidence suggested that chimpanzees were more related to man

A

Evidence from dna extracted from sex chromosomes, autosomal and Mitochondria

52
Q

Sequence of which of the following I used for phylogenetic studies

52
Q

Half life of C14 is

52
Q

Presence of gill slite during embroyological development support

A

Biogenesis

52
Q

Genetic drift occurs in

A

Small geographical isolated region

52
Q

Frequency of afactor increases when it is

52
Q

Basic laws of embryonic development wâ given byg

53
Q

Theory of inheritance of acquired characters is

54
Q

Initiating force of evolution is

55
Q

Mutations are

A

Pre adaptive

56
Q

Theory that suggest that life originated from a primordial soup of organic molecules in early earth oceans

A

Chemical evolution

56
Q

Cichlid fishes in African lakes are an example of

A

Adaptive radiation

56
Q

The first species to use tool were

A

Homo habilis

56
Q

Most direct evidence for evolution is

A

Fossil evidence

56
Q

The theory of biogenesis states that

A

Life originates from pre existing living organism

57
Q

Genetic variation is least in

A

Stabilizing selection

57
Q

Basic unit of evolution is

A

Population

58
Q

Biogeographical factor that mostly influence the distribution of species

A

Continental drift

Chemistry Inorganic (16 decks)

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