Q. No.Evolutionary history of an organism is known as :
(1) Phylogeny
(2) Ancestry
(3) Paleontology
(4) Ontogeny
Difficulty Level:
Which one of the following is not a correct statement?
1. Herbarium houses dried, pressed and preserved plant specimens
2. Botanical gardens have collection of living plants for reference
3. A museum has collection of photographs of plants and animals
4. Key is a taxonomic aid for identification of specimens
Difficulty Level:
Two plants can be conclusively said to belong to the same species if they:
(1) can reproduce freely with each other and form viable seeds
(2) have more than 90 percent similar genes
(3) look similar and possess identical secondary metabolites
(4) have same number of chromosomes
Difficulty Level:
Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?
(1) Diplontic life cycle
(2) Members of kingdom-Plantae
(3) Mode of nutrition
(4) Multiplication by fragmentation
Difficulty Level:
Which one of the following animals is correctly matched with its particular named taxonomic category?
|
(1) |
Cuttlefish |
– |
Mollusca, a class |
|
(2) |
Humans |
– |
Primata, the family |
|
(3) |
Housefly |
– |
Musca, an order |
|
(4) |
Tiger |
– |
tigris, the species |
Difficulty Level:
Nicotiana sylvestris flowers only during long days and N.tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering N.sylvestris and N.tabacum to be separation species?
(1) They cannot interbreed in nature
(2) They are reproductively distinct
(3) They are physiologically distinct
(4) They are morphologically distinct
Difficulty Level:
The taxon which includes related species is
(1) class
(2) order
(3) family
(4) genus
Difficulty Level:
Match the following columns and select the correct option.
| Column I | Column II | ||
| A. | Panthera tigris |
(i) | Mango |
| B. | Mangifera indica |
(ii) | Common Indian frog |
| C. | Musca domestica |
(iii) | Cockroach |
| D. | Periplaneta americana |
(iv) | Tiger |
| E. | Rana tigerina |
(v) | House fly |
(1) A - (ii), B - (v), C - (i), D - (iii), E - (iv)
(2) A - (iv), B - (i), C - (v), D - (iii), E - (ii)
(3) A - (ii), B - (v), C - (iii), D - (i), E - (iv)
(4) A - (iv), B - (i), C - (v), D - (ii), E - (iii)
Difficulty Level:
Which of the following features can be said to be a true defining feature of living beings without any exception?
(1) They can digest their food
(2) All of them can reproduce
(3) They can regenerate
(4) They can respond to external stimuli
Difficulty Level:
Select the correct sequence for Homo erectus.
(1) erectus → Homo → Primata → Chordata → Animalia
(2) Homo → erectus → Primata → Animalia → Chordata
(3) Homo → erectus → Primata → Chordata → Animalia
(4) erectus → Homo → Animalia → Primata → Chordata
Difficulty Level:
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