131.
True sexual reproduction absent in A
Yellow green algae
B
Red algae
C
Green algae
D
Blue green algae
Answer :
Blue green algae
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132.
What is the general shape of bacteria A
Cubes
B
Spheres
C
Rods
D
Spirals
Answer :
Rods
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133.
Viroids differ from viruses in having; A
DNA molecules without protein coat
B
RNA molecules with protein coat
C
RNA molecules without protein coat
D
DNA molecules with protein coat
Answer :
RNA molecules without protein coat
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134.
Transfer of genetic information from one bacterium to another in the transduction process is through A
Conjugation
B
Bacteriophages released from the donor bacterial strain
C
Another bacterium
D
Physical contact between donor and recipient strain
Answer :
Bacteriophages released from the donor bacterial strain
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Transfer of genetic information from one bacterium to another by physical contact is called conjugation while if it takes place by some other medium like virus than it is called transduction.
135.
What will happen after degeneration of nucleus of Amoeba A
Immediate death
B
Vital activity slow down & death
C
Rapid movement
D
No changes
Answer :
Vital activity slow down & death
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136.
A full grown Amoeda undrgoes binary fission, the total surface area of one daughter Amoeba soon after division is A
Equal to half parent Ameoba
B
Slightly less than half of parent Amoeba
C
Same as parent Ameoba
D
Slightly more than half of parent Amoeba
Answer :
Slightly more than half of parent Amoeba
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137.
The Trophozoite form in Entamoeba histolytica is A
Magna form
B
Minute form
C
Monogenetic form
D
Digenetic form
Answer :
Magna form
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138.
Amoeba reproduce during unfavourable conditioins by A
Conjugation
B
Binary fissionl
C
Encystment
D
All of the above
Answer :
Encystment
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139.
When F-episomic element of a bacerium becomes integrated in its main genophore, it is called A
F+
B
F-
C
HFr
D
HRr-
Answer :
HFr
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140.
Zygospores are formed in A
Puccinia
B
Penicillium
C
Alternaria
D
Mucor
Answer :
Mucor
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