Biology - Mock Test 145

Question 1441

Which of the following is a merit in the Bentham and Hooker's system of classification?

A) The placement of family - Asteraceae in the beginning of Gamopetalae B) The placement of order - Ranals in the beginning C) Closely related families are placed apart D) The position of gymnosperms in between dicots and monocots

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Question 1442

One of the most important functions of botanical gardens is that ?

A) One can observe tropical plants there B) They provide the natural habitat for wild life C) They allow ex-situ conservation of germplasm D) They provide a beautiful area for recreation

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Question 1443

Two plants can be conclusively said to belong to the same species if they ?

A) Have more than 90 percent similar genes B) Can reproduce freely with each other and form seeds C) Have same number of chromosomes D) Look similar and possess identical secondary metabolites

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Question 1444

Practical purpose of taxonomy or classification ?

A) To know the evolutionary history B) Explain the origin of organisms C) Facilitate the identification of unknown species D) Identification of medicinal plants

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Question 1445

Biosystematics aims at ?

A) Identification and arrangement of organisms on the basis of cytological characteristics B) The classification of organisms based on broad morphological characters C) Delimiting various taxa of organism and establishing their relationships D) The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies

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Question 1446

In angiosperm, characters of flowers are used in classification because ?

A) Flowers are attractive B) Flowers are large C) Characters of flowers are conservative D) None of the above

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Question 1447

Phenetic classification of organisms is based on?

A) Sexual characteristics B) Dendrogram based on DNA characteristics C) The ancestral lineage of existing organisms D) Observable characteristics of existing organisms

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Question 1448

Classification of organisms based on evolutionary as well as genetic relationships is called ?

A) Numerical taxonomy B) Phenetics C) Biosystematics D) Cladistics

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Question 1449

A perennial shrub has compound leaves and solitary zygomorphic and epigynous flowers. Each flower reveals dichlamydeous condition with many stamens and multiple fruit with exalbuminous seeds. What is the ratio of advanced and primitive charactrs in it?

A) 1: 2 B) 2: 3 C) 1: 1 D) 3: 2

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Question 1450

Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?

A) Taxonomic key B) Flora C) Herbarium D) Monograph

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