Full fledge assessment (Please watch the above videos before attempting this assessment)

Question 1 of 20
Q1. Beetles of one sub-population are dropped by a crow into beetles of another sub-population. In this situation, new species will not be formed because of 
  • Gene flow
  • Inheritance
  • Genetic drift
  • Geographical isolation

Solution :

Since beetles of one sub-population were dropped by a crow into beetles of another sub-population, there will be gene flow between the two sub-populations. The migrant population will reproduce with the local population, and hence, no new species will be formed. 
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Q2. _________ is the random changes in the frequency of traits in a population over successive generations. 
  • Geographical isolation
  • Inheritance
  • Genetic drift
  • Gene flow

Solution :

Genetic drift is the random changes in the frequency of traits in a population over successive generations. 
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Q3. Which of the following traits were not studied by Mendel? 
  • Pod height
  • Flower colour
  • Pod shape
  • Plant height

Solution :

Pod height was not studied by Mendel in his hybridisation experiments. 
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Q4. Which of the following are analogous organs? 
  • Forelimbs of frog and human
  • Scales of fish and hair of humans
  • Wings of birds and human arm
  • Wings of birds and butterfly

Solution :

Wings of birds and butterfly are analogous organs.
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Q5. ____________ is also known as garden pea.
  • Pisum sativum
  • Mangifera indica
  • Rosa alba
  • Pisum fulvum

Solution :

Pisum sativum is commonly known as garden pea. 
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Q6. Which of the following organisms have compound eyes? 
  • Parasites
  • Insects
  • Protozoa
  • Viruses

Solution :

Insects and crustaceans have compound eyes which can detect fast movement. 
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Q7. Hybridisation experiments on pea plants were conducted by 
  • Gregor Mendel
  • Johann Norway
  • William Harvey
  • Robert Hooke

Solution :

Hybridisation experiments on pea plants were conducted by Sir Gregor Johann Mendel. 
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Q8. In which of the following habitats are bacteria known to survive successfully? 
  • Deep sea thermal vents
  • Hot springs
  • Ice in Antarctica
  • All of the above

Solution :

Bacteria are known to survive successfully in deep sea thermal vents, hot springs and ice in Antarctica. 
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Q9. Which of the following does not differentiate between monohybrid and dihybrid crosses? 
  • Type of contrasting characters
  • Genotypic and phenotypic ratio
  • Number of alleles
  • Number of contrasting characters

Solution :

There are only two types of contrasting characters involved in both monohybrid and dihybrid crosses - dominant and recessive. 
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Q10. Perfectly paired sets of chromosomes in human beings are called 
  • Autosomes
  • Allosomes
  • Heterosomes
  • Sex chromosomes

Solution :

Perfectly paired 22 sets of chromosomes in human beings are called autosomes 
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Q11. Which of the following features enable birds to survive successfully in air? 
  • Small claws, warm blooded
  • Ability to fly, cold blooded
  • Ability to fly, warm blooded
  • Small claws, cold blooded

Solution :

Birds have the ability to fly and are warm blooded which enable them to survive successfully in air. 
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Q12. Darwin's theory could not explain the 
  • Mechanism of evolution
  • Transfer of characteristics
  • Development of new species
  • Cause of variation

Solution :

Darwin's theory could not explain the cause of variations in organisms. 
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Q13. Which of the following varieties of cabbage were developed with arrested flower development? 
  • Broccoli
  • Wild cabbage
  • Kale
  • Cauliflower

Solution :

Broccoli was developed with arrested flower development. 
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Q14. _____________ is the change in inherited traits of a population of organisms from one generation to another. 
  • Inheritance
  • Classification
  • Evolution
  • Variation

Solution :

Evolution is change in the inherited traits of a population of organisms from one generation to another. 
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Q15. Traits expressed in the F1 generation are said to be
  • Supplementary
  • Epistatic
  • Dominant
  • Recessive

Solution :

Traits expressed in the F1 generation are said to be dominant. 
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Q16. Which of the following is not a dominant trait in pea plant?
  • Wrinkled seeds
  • Green pods
  • Violet flowers
  • Yellow seeds

Solution :

In pea plant, wrinkled seeds are recessive, while round seeds are dominant. 
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Q17. Fossil records of which of the following reptiles has shown traces of feathers? 
  • Dinosaurs
  • Alligators
  • Snakes
  • Lizards

Solution :

Fossil records of dinosaurs have shown traces of feathers. 
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Q18. Which part of an organism is usually not preserved during fossilisation? 
  • Shell and bone
  • Muscles and skin
  • Teeth and nail
  • Cartilaginous exoskeleton

Solution :

Muscles and skin are usually not preserved during fossilisation. 
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Q19. ____________ is known as the Father of Genetics.
  • Gregor Mendel
  • Johann Norway
  • William Harvey
  • Robert Hooke

Solution :

Sir Gregor Johann Mendel is known as the Father of Genetics. 
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Q20. Which of the following does not serve as evidence for evolution? 
  • Homologous organs
  • Analogous organs
  • Physical traits
  • Fossils

Solution :

Physical traits do not serve as evidence for evolution. 
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