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TLS Online TPP Program

#Question id: 40243

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Cotton fibers are considered surface fibers rather than bast fibers.
Reason (R): Cotton fibers originate as epidermal elongations of the seed coat, whereas bast fibers are derived from the phloem tissues of the stem.
In the light of the above statements, choose the most appropriate answer from the options given below:

#Botany
  1.  Both (A) and (R) are correct and (R) is the correct explanation of (A).
  2. Both (A) and (R) are correct but (R) is NOT the correct explanation of (A).
  3.  (A) is correct but (R) is not correct.
  4.  (A) is not correct but (R) is correct.
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TLS Online TPP Program

#Question id: 40521

#Environmental Science

ASSERTION–REASON
Assertion (A): Numerical taxonomy uses many observable characters.
Reason (R): It reduces subjectivity in classification.
TLS Online TPP Program

#Question id: 40522

#Environmental Science

ASSERTION–REASON
Assertion (A): Cytotaxonomy helps identify evolutionary relationships.
Reason (R): Chromosome number and structure vary among taxa.
TLS Online TPP Program

#Question id: 40523

#Environmental Science

Match the classification approach with its core principle

Column IColumn II
A. Cladistics1. Shared derived characters
B. Phenetics2. Overall similarity scoring
C. Evolutionary taxonomy3. Ancestry + degree of divergence
D. Biosystematics4. Population-level variation
TLS Online TPP Program

#Question id: 40524

#Environmental Science

Match taxonomic evidence with interpretation

Column IColumn II
A. Homologous organs1. Common ancestry
B. Analogous organs2. Convergent evolution
C. Vestigial structures3. Evolutionary remnants
D. Molecular homology4. Genetic relatedness
TLS Online TPP Program

#Question id: 40525

#Environmental Science

Consider the following statements regarding species delimitation:
1.Reproductive isolation is central to the biological species concept
2.Cryptic species challenge morphology-based taxonomy
3.Allopatric populations are always separate species
4.Molecular evidence can reveal hidden diversity
Which are correct?
TLS Online TPP Program

#Question id: 40526

#Environmental Science

Evaluate statements about systematics data integration:
1.Morphological data may reflect adaptive convergence
2.Molecular data eliminate all classification ambiguity
3.Integrative taxonomy improves reliability
4.Chromosomal variation aids species discrimination