Microtaxonomy Flashcards

1
Q
  • classification at the species level
A

microtaxonomy

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2
Q

a multilayered science

A

taxonomy

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3
Q

Greek: __ = order; __ = law

A

taxis = order
nomos = law

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4
Q

refers to the presence of two or more variant forms of a specific DNA sequence that can occur among different individuals or populations

A

Polymorphism

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5
Q

French for taxonomy

A

taxinomie

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6
Q

taxonomy acc. to Simpson

A

theory and practice of delimiting kinds of organisms and of classifying them

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7
Q

taxonomy acc. to Wilson

A

science and art

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8
Q

taxonomy acc. to ICZN (International Code of Zoological Nomenclature)

A

theory and practice of classifying organisms

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9
Q

Steps in taxonomy

A
  1. Microtaxonomy
  2. Macrotaxonomy
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10
Q

the demarcation of species

A

microtaxonomy

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11
Q

questions asked in microtaxonomy

A
  1. What is species?
  2. What species concept is best?
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12
Q

the classification of species

A

macrotaxonomy

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13
Q

questions asked in macrotaxonomy

A
  1. How do we classify organisms?
  2. According to genealogy or to degree of similarity… or both?
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14
Q

recognition and description of species and first classification

A

alpha-taxonomy

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15
Q

classification of species in hierarchical system

A

beta-taxonomy

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16
Q

understanding the evolutionary factors

A

gamma-taxonomy

17
Q

alpha-taxonomy

A

microtaxonomy

18
Q

beta-taxonomy

A

in between micro and macrotaxonomy

19
Q

gamma-taxonomy

A

macrotaxonomy

20
Q

Fundamental concepts of taxonomy

A
  1. alpha taxonomy
  2. omega taxonomy
21
Q

phases in alpha taxonomy

A

exploratory and consolidation phase

22
Q

phases in omega taxonomy

A

biosystematic and encyclopaedic phases

23
Q

alpha taxonomy started with the work of who

A
  • Tournefort
  • de Jussieu
  • Linneaus
24
Q
  • concerned with the description and designation of species
  • basis of morphological characters
A

alpha taxonomy (descriptive taxonomy)

25
- arrangement of species into hierarchical system of higher categories or taxa - developed in 20th century
beta taxonomy (macrotaxonomy)
26
- aspect of taxonomy concerned with intraspecific population and with phylogenetic trends - attempt is made to account for the origin and development of species - taxonomists relate to paleobotany which includes all taxa of extinct plant groups
gamma taxonomy
27
taxonomists in gamma taxonomy relate to __ which includes all taxa of extinct plant groups
paleobotany
28
- an ultimate perfect system, based upon all available characters
omega taxonomy
29
provides best picture on classification
consolidation of alpha-omega taxonomy
30
Three main aims of taxonomy
1. Identification 2. Nomenclature 3. Classification
31
Two main approaches in taxonomy
1. Empirical approach 2. Interpretive approach
32
based on practical aspects, observation of characters etc.
empirical approach
33
classification is based on interpretation and evolution of a taxon, e.g., phylogenetic system
interpretive approach
34
The process of individual development from a single cell, an egg cell or a zygote, to an adult organism
ontogeny
35
evolutionary history
phylogeny
36
scientific study of ancient plants, using plant fossils found in sedimentary rocks
Paleobotany