Biology - Mock Test 18

Question 171

If ‘8’ Drosophila in a laboratory population of ‘80’ died during a week the death rate in the population is ____ individuals per Drosophila per week

A) 10 B) 1 C) zero D) 0.1

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Question 172

Detritivores breakdown detritus into smaller particles. This process is called

A) Fragmentation B) Humification C) Decomposition D) Catabolism

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Question 173

Which of the following is not a connective tissue

A) Adipose tissue B) Cartilage C) Neuroglia D) Blood

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Question 174

If the length of a DNA molecule is 1.1 meter, what will be the approximate number of base pairs

A) 6.6 × 109 bp B) 3.3 × 106 bp C) 6.6 × 106 bp D) 3.3 × 109 bp

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Question 175

Identify the asexual reproductive structure associated with Penicillium

A) Conidia B) Gemmules C) Buds D) Zoospores

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Question 176

In an E Coli strain i gene gets mutated and its product can not bind the inducer molecule If growth medium is provided with lactose, what will be the outcome

A) z, y, a genes will be transcribed B) z, y, a genes will not be translated C) RNA polymerase will bind the promoter region D) Only z gene will get transcribed

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Question 177

Which of the following is present between the adjacent bones of the vertebral column

A) Cartilage B) Areolar tissue C) Smooth muscle D) Intercalated discs

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Question 178

Natural selection where more individuals acquire specific character value other than the mean character value, leads to

A) Directional change B) Disruptive change C) Random change D) Stabilizing change

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Question 179

In which of the following animals, digestive tract has additional chambers like crop and gizzard

A) Bufo, Balaenoptera, Bangarus B) Catla, Columba, Crocodilus C) Pavo, Psittacula, Corvus D) Corvus, Columba, Chameleon

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Question 180

A dehydration reaction links two glucose molecules to product maltose. If the formula for glucose is C₆H₁₂O₆ then what is the formula for maltose

A) C₁₂H₂₄O₁₂ B) C₁₂H₂₂O₁₁ C) C₁₂H₂₄O₁₁ D) C₁₂H₂₀O₁₀

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