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Biological Classification

1051 Questions Start Allen Test
All Exams Allen Errorless
Q1026 Errorless Critical Thinking_Fungi MCQ
Considering mode of asexual reproduction, match the Column I with Il and select the correct option
Column-IColumn-II
(A)Yeast
(B)Penicillium
(C)Filamentous algae
(D)Chlamydomonas
(P)Fragmentation
(Q)Zoospores
(R)Budding
(S)Conidia
A.
Aāˆ’R, Bāˆ’S, Cāˆ’P, Dāˆ’Q
B.
Aāˆ’Q, Bāˆ’R, Cāˆ’P, Dāˆ’S
C.
Aāˆ’S, Bāˆ’R, Cāˆ’Q, Dāˆ’P
D.
Aāˆ’R, Bāˆ’Q, Cāˆ’P, Dāˆ’S
Q1027 Errorless Critical Thinking_Fungi MCQ
Match Column I with Column II
Column-IColumn-II
(A)Saprophyte
(B)Parasite
(C)Lichens
(D)Mycorrhiza
(P)Symbiotic association of fungi with plant roots
(Q)Decomposition of dead organic materials
(R)Living on living plants or animals
(S)Symbiotic association of algae and fungi
A.
Aāˆ’Q, Bāˆ’R, Cāˆ’S, Dāˆ’P
B.
Aāˆ’S, Bāˆ’R, Cāˆ’Q, Dāˆ’P
C.
Aāˆ’Q, Bāˆ’R, Cāˆ’S, Dāˆ’P
D.
Aāˆ’Q, Bāˆ’R, Cāˆ’S, Dāˆ’P
Q1028 Errorless Critical Thinking_Fungi MCQ
Match Column-I with Column-II
Column-IColumn-II
(A)Rhizopus
(B)Ustilago
(C)Puccinia
(D)Agaricus
(P)Mushroom
(Q)Smut fungus
(R)Bread mould
(S)Rust fungus
A.
Aāˆ’R, Bāˆ’Q, Cāˆ’S, Dāˆ’P
B.
Aāˆ’P, Bāˆ’Q, Cāˆ’S, Dāˆ’R
C.
Aāˆ’S, Bāˆ’R, Cāˆ’P, Dāˆ’Q
D.
Aāˆ’S, Bāˆ’P, Cāˆ’Q, Dāˆ’R
Q1029 Errorless Assertion and Reason_Fungi Numerical
Assertion: Deuteromycetes lack sexual reproduction. Reason Fungi show three type of reproduction asexual, sexual and vegetative.
Q1030 Errorless Assertion and Reason_Fungi Numerical
Assertion :ā€œFungi imperfecti" does not show alternation of generation.
Q1031 Errorless Viruses_Viruses MCQ
Which of the following viruses is devoid of protein coat with their body constituted by only RNA [NCERT Pg. No. 21]
A.
Tobacco mosaic virus (TMV)
B.
Potato spindle tuber virus (PSTV)
C.
Polyoma virus
D.
Mumps virus
Q1032 Errorless Viruses_Viruses MCQ
The phage which does not destroy the host cell but infects it, is called Or The virus responsible for lysogenic growth cycle is
A.
Cyanophage
B.
T2 phage
C.
Virulent phage
D.
Ī» phage
Q1033 Errorless Viruses_Viruses MCQ
Which of the following sequence is found in Rous sarcoma virus
A.
DNA ā†’ RNA ā†’ Protein
B.
RNA ā†’ RNA ā†’ Protein
C.
RNA ā†’ DNA ā†’ RNA ā†’ Protein
D.
DNA ā†’ DNA ā†’ Protein
Q1034 Errorless Viruses_Viruses MCQ
Protein of capsomeres is made up of
A.
Nucleic acids
B.
Carbohydrates
C.
Fats
D.
Amino acids
Q1035 Errorless Viruses_Viruses MCQ
A cryptogram has got how many pairs of information
A.
1
B.
2
C.
3
D.
4
Q1036 Errorless Viruses_Viruses MCQ
The enzymes formed by bacteriophage which ruptures the bacterial wall is
A.
Proenzymes
B.
Phage-lysozymes
C.
Endolysins
D.
Phagoproteins
Q1037 Errorless Viruses_Viruses MCQ
Virus was assigned its name by
A.
Dmitri Ivanowski
B.
Adolf Mayer
C.
M.W. Beijerinck
D.
McKinney
Q1038 Errorless Viruses_Viruses MCQ
Viruses were called Contagium vivum fluidum by
A.
de Herelle
B.
Bawden and Pirie
C.
Twort
D.
Beijerinck
Q1039 Errorless Viruses_Viruses MCQ
The size of TMV is
A.
17.5 Ɨ 300ƅ
B.
17.5 Ɨ 300nm
C.
19.5 Ɨ 250ƅ
D.
19.5 Ɨ 250nm
Q1040 Errorless Viruses_Viruses MCQ
The viruses are known as
A.
Unicellular
B.
Acellular
C.
Multicellular
D.
Free genes
Q1041 Errorless Viruses_Viruses MCQ
The diagram of a virus is given below. In which of the options A, B and C are correct [NCERT Pg. No. 20]
A.
RNA ā€” Protein ā€” HIV
B.
RNA ā€” Lipid ā€” Tobacco Mosaic Virus
C.
DNA ā€” Capsid ā€” Tobacco Mosaic Virus
D.
RNA ā€” Capsid ā€” Tobacco Mosaic Virus
Q1042 Errorless Viruses_Viruses MCQ
Viruses multiply
A.
In vivo
B.
In vitro
C.
Both
D.
None of the above
Q1043 Errorless Viruses_Viruses MCQ
Which of the following is true for viruses
A.
They invariably contain DNA
B.
They multiply only in host cell
C.
They occur only inside bacteria
D.
Their genetic material is RNA
Q1044 Errorless Viruses_Viruses MCQ
Which one is the smallest among the following
A.
Bacteriophage
B.
TMV
C.
E. coli
D.
Neurospora
Q1045 Errorless Viruses_Viruses MCQ
A provirus is
A.
Precursor of a viral particle
B.
Prolonged viral infection
C.
A symbiotic viral nucleic acid within the host genome
D.
A dormant viral protein
Q1046 Errorless Critical Thinking_Viruses 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
Q1047 Errorless Assertion and Reason_Viruses MCQ
Assertion: DNA serves as hereditary material. Reason: DNA functions as blue-print for building and running cellular machinery.
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 reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q1048 Errorless Assertion and Reason_Viruses MCQ
Assertion: Primitive atmosphere was formed by the lightest atoms. Reason: The primitive atmosphere was reducing in nature.
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 reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q1049 Errorless Self Evaluation Test_Viruses MCQ
Who discovered synthesis of DNA from RNA in Rous sarcoma virus
A.
Smith
B.
Temin
C.
Twort
D.
Meyer
Q1050 Errorless Self Evaluation Test_Viruses MCQ
Bacteriophage which infects colon bacterium is
A.
Biophage
B.
Cyanophage
C.
Coliphage
D.
None of these