If most body cells of a mammal have 40 chromosomes, how many will the cells in its seminiferous tubules have?
Correct answer D. Some will have 40 and others will have 20
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Everyday Science MCQs
Page 52 of Everyday Science multiple-choice questions with answers. Tap an option to check yourself.
Page 52 of 198
What type of reaction occurs between methane and chlorine in diffused sunlight?
Correct answer B. Radical substitution
Which part of the human body does leukaemia affect?
Correct answer D. Blood
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How many nucleosomes make up each turn of the helical coil in the 30 nm chromatin fibre?
Correct answer B. 6
Which of the following is not a component of human bone?
Correct answer B. Boron
When is the frequency of a character in a population found to increase?
Correct answer A. It is adaptable
What term describes the characteristics that appear physically in an animal?
Correct answer D. Phenotype
In the plastics industry, what does PVC stand for?
Correct answer A. Polyvinyl chloride
What is oil of vitriol?
Correct answer C. Sulfuric acid
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In which of these is the haploid condition found?
Correct answer D. Ovum
Which plant tissue transports food?
Correct answer D. Phloem
By what common name is calcium sulphate known?
Correct answer A. Gypsum
What is the chemical name of Epsom salt?
Correct answer C. Magnesium sulphate
When the left ventricle of the human heart contracts, where does the blood go?
Correct answer B. Aorta
Which element is used in pencil ‘lead’?
Correct answer A. Carbon
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Which part of the nervous system controls the activities of the internal organs?
Correct answer D. Medulla Oblongata
Which alcohol is used to make dynamite?
Correct answer D. Glycerol
Which cells secrete insulin?
Correct answer D. Beta cells
Which gas makes up the largest part of air?
Correct answer A. Nitrogen
Where are fats stored in the human body?
Correct answer A. Adipose tissue