Popular Questions
- The presence of homologous organs in different animals indicates
- Fossils are the remains of
- Assertion : Dominant allele is an allele Reason : It is represented by a capital letter
- Assertion : The sex of the children will be Reason : A human male has one x and one Y-chromosome
- Assertion : Evolution is called as organic evolution Reason : Evolution involves the living organisms
- Assertion : Changes in non-reproductive Reason : Inherited traits include the traits
- Assertion : Forelimbs of vertebrates are homologous organs Reason : Analogous organs have same origin but different functions
- If a trait A exists in 10% of the population of an asexually reproducing species
- How does the creation of variation in a species promote survival?
- How do Mendels experiments show that traits may be dominant or recessive?
- How do Mendels experiments show that traits are inherited independently?
- A man with blood group A married a woman with blood group O and their daughter has blood group O.
- How is the sex of a child determined in human beings?
- What are the different ways in which individuals with a particular trait may increase in a population?
- Why are the traits acquired during the lifetime of an individual not inherited?
- Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?
- What factors could lead to the rise of a new species?
- Will geographical isolation be a mirror factor in the speciation of
- Will geographical isolation be a major factor in the speciation of
- Give an example of characteristic being used to determine how close two species are in evolutionary terms?
- Can the wing of a butterfly and the wing of a bat be
- What are fossils? What do they tell us about the process of evolution?
- Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?
- In evolutionary terms, can we say which among bacteria, spiders, fishes and chimpanzees have a better body design? Why or Why not?
- Reproduction leads to variation. How?
- In any population, no two individuals are absolutely similar. Why
- What is the cause of variation in asexually reproducing organisms?
- A Mendelian experiment consisted of breeding pea plants bearing violet flowers
- Why is the progeny always tall when a tall pea plant is crosses with a short pea plant?
- How many pairs of chromosomes are present in human beings?
- Why is it that the unit of evolution is population, not the individual?
- In a beetle population, the number of green beetles is more than blue and red beetles
- An organism which is a worm, has very simple eyes,
- State one of the evolutionary forces leading to the origin of a new species according to the Darwins theory of evolution.
- What is the evolutionary significance of the fossil Archaeopteryx?
- Give an example, of a characteristic being used to determine,
- A child questioned his teacher that why do organisms resemble their parents more as compared to grandparents.
- (i) In humans, if gene B gives brown eyes (ii) What do you class this trait of eye colour in human? Explain.
- In a pea plant, find the contrasting trait if
- In a monohybrid cross, pink coloured flowers are dominant over white coloured flowers.
