← Back to Botany

Biological Classification

1051 Questions Start Allen Test
All Exams Allen Errorless
Q926 Allen (B) ANALYTICAL QUESTIONS MCQ
An association between roots of higher plants and fungi is called-
A.
Lichen
B.
Fern
C.
Mycorrhiza
D.
BGA
Q927 Allen (B) ANALYTICAL QUESTIONS MCQ
A dikaryon is formed when
A.
Meiosis is arrested
B.
The two haploid nuclei do not fuse immediately
C.
Cytoplasm does not fuse
D.
None of the above
Q928 Allen (B) ANALYTICAL QUESTIONS MCQ
Contagium vivum fluidum was proposed by
A.
D.J. Ivanowsky
B.
M.W. Beijerinek
C.
Stanley
D.
Robert Hook
Q929 Allen (B) ANALYTICAL QUESTIONS MCQ
Mycobiont and Phycobiont are found in
A.
Mycorrhiza
B.
Root
C.
Lichens
D.
BGA
Q930 Allen (B) ANALYTICAL QUESTIONS MCQ
Difference between Virus and Viroid is
A.
Absence of protein coat in viroid but present in virus
B.
Presence of low molecular weight RNA in virus but absent in viroid
C.
Both (1) and (2)
D.
None of the above
Q931 Allen (B) ANALYTICAL QUESTIONS MCQ
The following features belong to class
(A) Asexual reproduction by zoospores or aplanospores. (B) Fusion of gametes may be isogamous, anisogamous or oogamous. (C) Mycelium is aseptate and coenocytic. (D) Spores are endogenously produced in sporangium.
A.
Ascomycetes
B.
Deuteromycetes
C.
Phycomycetes
D.
Basidiomycetes
Q932 Allen (B) ANALYTICAL QUESTIONS MCQ
Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to?
A.
Monera
B.
Protista
C.
Fungi
D.
None of the above
Q933 Allen (B) ANALYTICAL QUESTIONS MCQ
Members of phycomycetes are found in i. Aquatic habitats ii. On decaying wood iii. Moist and damp places iv. As obligate parasites on plants Choose from the following options
A.
None of the above
B.
i and iv
C.
ii and iii
D.
All of the above
Q934 Allen (B) ANALYTICAL QUESTIONS MCQ
Cyanobacteria are classified under
A.
Protista
B.
Plantae
C.
Monera
D.
Algae
Q935 Allen (B) ANALYTICAL QUESTIONS MCQ
Fusion of two gametes which are dissimilar in size is termed as
A.
Oogamy
B.
Isogamy
C.
Anisogamy
D.
Zoogamy
Q936 Allen (B) ANALYTICAL QUESTIONS MCQ
Which of the following criterion was not used for classification of fungi?
A.
Structure of mycelium
B.
Structure of fruiting body
C.
Complexity of cell wall
D.
Mode of spore formation
Q937 Allen (B) ANALYTICAL QUESTIONS MCQ
In which kingdom would you classify the archaebacteria and nitrogen-fixing organisms. If the five-kingdom system of classification is used ?
A.
Monera
B.
Plantae
C.
Fungi
D.
Protista
Q938 Allen (B) ANALYTICAL QUESTIONS MCQ
How many kingdoms include prokaryotic organisms only, in three domain classification?
A.
One
B.
Three
C.
Two
D.
Four
Q939 Allen (B) ANALYTICAL QUESTIONS MCQ
A bacterium is able of withstand extreme heat, dryness, and toxic chemical this indicates that it is probably able to form :
A.
Endospore
B.
Thick peptidoglycan wall
C.
Capsule
D.
Toxins
Q940 Allen (B) ANALYTICAL QUESTIONS MCQ
Heterocysts as specialized cells to fix atmospheric nitrogen are produced by:
A.
Rhodospirillum and Nostoc
B.
Anabaena and Azolla
C.
Nostoc and Anabaena
D.
Rhodopseudomonas and Oscillatoria
Q941 Allen (B) ANALYTICAL QUESTIONS MCQ
Which of the following are the characters of dinoflagellates?
(i) They are planktonic golden yellow algae with soap box like structure.
(ii) They are marine red biflagellated Protista.
(iii) They appear yellow, green, brown, blue and red in colour.
(iv) They are biflagellated organisms with pellicle.
(v) They are saprophytic (or) parasitic unicellular forms.
A.
(ii) and (iii)
B.
(ii) and (v)
C.
(i), (ii) and (iii)
D.
(ii), (iv) and (v)
Q942 Allen (B) ANALYTICAL QUESTIONS MCQ
Which statement is incorrect regarding fungi :
A.
Stored food is glycogen and oil
B.
Fungi are haploid in nature
C.
Higher Fungi are more advanced than lower fungi in complexity of sex organs.
D.
Haplontic life cycle and zygotic meiosis occurs in most of the fungi
Q943 Allen (B) ANALYTICAL QUESTIONS MCQ
Match column I with column II and choose the right option :
Column-IColumn-II
(a)Ascomycetes
(b)Basidiomycetes
(c)Deuteromycetes
(d)Phycomycetes
(i)Rhizopus
(ii)Penicillium
(iii)Ustilago
(iv)Alternaria
A.
a-iv, b-iii, c-i, d-ii
B.
a-ii, b-iii, c-iv, d-i
C.
a-iv, b-i, c-iii, d-ii
D.
a-iii, b-iv, c-ii, d-i
Q944 Allen (B) ANALYTICAL QUESTIONS MCQ
Which of the following is not a sexual spore (a) Sporangiospore (b) Ascospore (c) Basidiospore (d) Oospore (e) Zygospore
A.
(a), (b) and (c)
B.
only (a)
C.
(b), (c) and (d)
D.
(d) and (e)
Q945 Allen (B) ANALYTICAL QUESTIONS MCQ
Which of the following group of kingdom Protista is being described in the statements given below ?
(i) This group includes diatoms and golden algae.
(ii) They are microscopic and float passively in water currents (plankton).
(iii) Most of them are photosynthetic.
(iv) They have deposits in their habitat; this accumulation over billion of years is referred to as ā€˜diatomaceous earthā€™.
A.
Dinoflagellates
B.
Chrysophytes
C.
Euglenoids
D.
Slime moulds
Q946 Allen (B) ANALYTICAL QUESTIONS MCQ
The given statements are some characters of a particular group of Kingdom Protista.
(i) Most of them are fresh water organisms found in standing water.
(ii) They have a protein rich layer (called pellicle) which makes their body flexible.
(iii) They have two flagella, a short and a long one.
(iv) Though they are photosynthetic in the presence of sunlight, but in the absence of sunlight they behave like heterotrophs by predating on other smaller organisms.
Identify the correct group on the basis of these characters.
A.
Protozoans
B.
Chrysophytes
C.
Slime moulds
D.
Euglenoids
Q947 Allen (B) ANALYTICAL QUESTIONS MCQ
Which of the following statement(s) is/are correct about ascomycetes ?
(i) Neurospora, which is used in biochemical and genetic work is a member of this class.
(ii) They are mostly multicellular, e.g., Yeast, or rarely unicellular, e.g., Penicillium.
(iii) They are saprophytic, decomposers, parasitic or coprophilous.
(iv) Some examples are Aspergillus, Claviceps and Neurospora.
A.
Both (i) and (ii)
B.
Only (ii)
C.
(i), (iii) and (iv)
D.
All of these
Q948 Allen (B) ANALYTICAL QUESTIONS MCQ
Which of the following statement(s) is/are correct about class basidiomycetes ?
(i) They are commonly known as imperfect fungi because only the asexual or vegetative phases of these fungi are known.
(ii) They grow in soil, on logs and tree stumps and in living plant bodies as parasites, e.g., rusts and smuts.
(iii) The mycelium is branched and septate.
(iv) Some common members are Agaricus, Ustilago and Puccinia.
A.
Only (i)
B.
Both (ii) and (iii)
C.
(ii), (iii) and (iv)
D.
All of these
Q949 Allen (B) ANALYTICAL QUESTIONS MCQ
Assertion : Euglena can be placed in the plant kingdom due to the presence of chlorophyll. Reason : Euglena cannot be classified on the basis of two kingdom system of classification.
A.
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B.
If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
C.
If Assertion is true but Reason is false.
D.
If both Assertion and Reason are false.
Q950 Allen (B) ANALYTICAL QUESTIONS MCQ
Assertion : Outside a living cell, viruses have must crystalline statements. Reason : Viroids have a protein coat.
A.
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B.
If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
C.
If Assertion is true but Reason is false.
D.
If both Assertion and Reason are false.