Biology Mcqs XI [Variations and Genetics] Online Test 4

Biology Mcqs XII [Variations and Genetics] MCQS Online Test - 4

Biology Aptitude Test. 10 Questions from Chapter # 22 Variations and Genetics

Q1. Mutual exchange of segments of chromosomes is called:

• Linkage
• Synapsis
• Pleiotropy
• Linking over
• Crossing over

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Q2. Number of chromosomes present in Male Grasshopper:

• 16
• 20
• 23
• 24
• 26

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Q3. Number of Autosomes present in humans:

• 38
• 40
• 42
• 44
• 46

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Q4. The human female possesses a genotype of:

• 40 + XY
• 40 + XX
• 42 + XX
• 43 + XX
• 44 + XY

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Q5. The human male possesses a genotype of:

• 40 + XY
• 40 + XX
• 44 + XY
• 42 + XY
• 46 + XY

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Q6. Any genetic trait which is transmitted through sex chromosomes is called:

• Single Trait Inheritance
• Sex Linked Inheritance
• Intermediate Inheritance
• Inheritance of Two Traits
• Autosomal Inheritance

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Q7. Sex determination in Drosophila was done by:

• T. H. Morgan
• Rudolf Virchow
• Bateson
• Gregor John Mendel
• Matthew Mesclson

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Q8. Acquiring of information about the phenotypes of family members to infer the genetic nature of a trait from the pattern of its inheritance is:

• Maternal analysis
• Paternal analysis
• Pedigree analysis
• Chromosomal analysis
• Genes analysis

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Q9. Persons suffering from colour blindness hae difficulty in distinguishing:

• Blue from green
• Red from blue
• Yellow from Orange
• Red from Yellow
• Red from Green

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Q10. Regarding colour blindness, “when a normal male marries carrier female”, which is the correct statement?

• All daughter will be colour blind
• All sons will be colour blind
• All daughters are normal but carriers
• Half of the sons will be colour blind
• Half of the daughter will be colour blind

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Variations and Genetics Test - 1

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