Which of the following is not true for a species?
Which of the following is not true for a species?
Options
(a) Members of a species can interbreed (b) Gene flow does not occur between the populations of a species (c) Each species […]
Biology
Phenetic classification is based on
Phenetic classification is based on
Options
(a) sexual characteristics (b) the ancestral lineage of existing organisms (c) observable characteristics of existing organisms (d) dendograms based on DNA characteristics
Correct Answer:
observable characteristics of […]
What is true for photolithotrops?
What is true for photolithotrops?
Options
(a) Obtain energy from radiations and hydrogen from organic compounds (b) Obtain energy from radiations and hydrogen from inorganic compounds (c) Obtain energy from organic compounds (d) […]
Species are considered as
Species are considered as
Options
(a) real units of classification devised by taxonomists (b) real basic units of classification (c) the lowest units of classification (d) artificial concept of human mind which cannot […]
Biosystematics aims at
Biosystematics aims at
Options
(a) identification and arrangement of organisms on the basis of their cytological characteristics (b) the classification of organisms based on broad morphological characters (c) delimiting various taxa of organisms […]
How many plants among China rose, Ocimum, sunflower, mustard, Alstonia
How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (Oleander) have opposite phyllotaxy?
Options
(a) Two (b) Three (c) Four (d) Five
Correct Answer:
Three
Explanation:
Phyllotaxy is […]
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea, Petunia, Indigofera, Mustard, Soyabean, Tobacco and groundnut how many plants have corolla with valvate aestivation?
Options
(a) Five (b) Six (c) Seven (d) […]
In a cymose inflorescence the main axis
In a cymose inflorescence the main axis
Options
(a) Terminates in a flower (b) Has unlimited growth (c) Bears a solitary flower (d) Has unlimited growth but lateral branches end in flowers
Correct […]
Which of the following statements is not true for stomatal apparatus?
Which of the following statements is not true for stomatal apparatus?
Options
(a) Inner walls of guard cells are thick (b) Guard cells invariably possess chloroplasts and mitochondria (c) Guard cells are always […]
Which one of the following animals is correctly matched with its one characteristics
Which one of the following animals is correctly matched with its one characteristics and the taxon?
Options
(a) Duckbilled platypus – Oviparous – Mammalian (b) Millipede – Ventral nerve cord- Arachnida (c) Sea Anemone […]