Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 102 of 150)

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How many nucleosomes are found in helical coil of 30 nm chromatin fibre ____?
A. 10
B. 12
C. 06
D. 09
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If the number of chromosomes in most body cells of a mammal is 40, the cells in the seminiferous tubule will have___________?
A. 40 chromosomes
B. 20 chromosomes
C. 10 chromosomes
D. While some other will have 20
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Balbiani discovered special type of chromosome from the salivary gland of chironomus larva which are recognized by the presence of ________?
A. Bands
B. Loops
C. Both bands and loops
D aLl of the above
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A cistron is ________?
A. Structural of gene
B. Functional unit of rna
C. Functional unit gene
D. Replication unit of gene
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Genetic information are carried in the form of long chain of molecules made-up-of _________?
A  Amino acids
B. Rna
C. Nucleotides
D. Polypeptides
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The elimination of toxic nitrogenous waste and excess water in man is by______?
A. Excretion
B. Circulation
C. Reproduction
D. Pollution
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Acid present in gastric juice is_________?
A. Hydrochloric acid
B. Citric acid
C. Sulphuric acid
D. Acetic acid
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Which blood cells are called ‘Soldiers’ of the body_________?
A. Wbc
B. Platelets
C. Rbc
D. All of the above
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If the radius of blood vessels of a person decreases his/her blood pressure will__________?
A. Decrease
B. Increase
C. Remain same
D. Becomes zero
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How many hearts does an Octopus have?
A. 1
B. 2
C. 3
D. 4
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Word of the Day
15 Jul
Iterate
perform or utter repeatedly.
دہرانا، چکر

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