Biology Mcqs XI [Chromosomes and Dna] Online Test 5

Biology Mcqs XII [Chromosomes and Dna] MCQS Online Test - 5

Biology Aptitude Test. 10 Questions from Chapter # 20 Chromosomes and Dna

Q1. Anticodons comprises of:

• DNA molecules
• rRNA molecules
• mRNA molecules
• tRNA molecules
• All are incorrect

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Q2. Codons comprises of:

• DNA molecules
• rRNA molecules
• mRNA molecules
• tRNA molecules
• All are Incorrect

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Q3. Sequence of two bases per amino acid gives _____ possible combinations of bases.

• 8
• 12
• 16
• 36
• 48

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Q4. Sequence of three bases per amino acid gives _____ possible combinations of bases.

• 12
• 16
• 36
• 58
• 64

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Q5. “The tRNA possesses anticodon series for particular amino acid site and binds to mRNA”. This henomenon is known as:

• Coding
• Decoding
• Recoding
• Transcription
• Tanslocation

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Q6. Transcription is initiated by a special enzyme, called:

• DNA synthetase
• RNA synthetase
• DNA polymerase
• RNA polymerase
• Deoxyribonuclease

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Q7. “One gene-one enzyme hypothesis” is proposed by:

• Watson and Crick
• Hershey and Chase
• Beadle and Tatum
• Avely, Maclood & McCarty
• Correns and Sutton

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Q8. The total genomic constitution of an individual is known as:

• Genetics
• Genome
• Geriatics
• Codons
• Mutagens

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Q9. Darkest colour organelle present in a human cell is:

• Mitochondria
• Chromosomes
• Ribosomes
• Lysosormes
• Nucleolus

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Q10. Chromosome is a bearer of hereditary characters in the form of:

• Spindles
• Phosphoric acid
• Genes
• Histones
• Ribonucleic acid

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Finish!

Chromosomes and Dna Test - 1

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