heredity and evolution class 10 ncert solutions, class 10 science, science class 10, science for class 10, science 10 class, 10 class science, science experiments for class 10, science syllabus for class 10, science textbook for class 10, science mcq for class 10, science class 10 sample papers, how to study science in class 10, class 10 science sample papers, science topics for class 10, class 10 science mcq, experiments of science for class 10 , ncert solutions, chapter 9,chapter 9ncert solutions, heredity and evolution ncert solutions, ncert solutions for class 10 science, class 10 science ncert solutions, ncert solutions for class 10, ncert class 10 science, class 10 science, class 10 science solution, ncert solutions class 10, class 10 science , ncert class 10, class 10 science
Question 1. If a trait A exists in 10% of a population of an asexually reproducing
species and a trait B exists in 60% of the same population, which trait
is likely to have arisen earlier?
Question 2. How does the creation of variations in a species promote survival?
Question 1. How do Mendel’s experiments show that traits may be dominant or
recessive?
Question 2. How do Mendel’s experiments show that traits are inherited
independently?
Question 3. A man with blood group A marries a woman with blood group O and
their daughter has blood group O. Is this
information enough to tell you
which of the traits – blood group A or O – is dominant? Why or why not?
Question 4. How is the sex of the child determined in human beings?
Question 1. What are the different ways in which individuals with a particular
trait may increase in a population?
Question 2. Why are traits acquired during the life-time of an individual not
inherited?
Question 3. Why are the small numbers of surviving tigers a cause of worry from
the point of view of genetics?
Question 1. What factors could lead to the rise of a new species?
Question 2. Will geographical isolation be a major factor in the speciation of a selfpollinating
plant species? Why or why not?
Question 3. Will geographical isolation be a major factor in the speciation of an
organism that reproduces asexually? Why or why not?
Question 1. Give an example of characteristics being used to determine how close
two species are in evolutionary terms.
Question 2. Can the wing of a butterfly and the wing of a bat be considered
homologous organs? Why or why not?
Question 3. What are fossils? What do they tell us about the process of evolution?
Question 1. 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?
Question 2. In evolutionary terms, can we say which among bacteria, spiders, fish
and chimpanzees have a ‘better’ body
design? Why or why not?
Question 1. A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers
with short pea plants bearing white flowers. The progeny all bore violet flowers,
but almost half of them were short. This suggests that the genetic make-up of the
tall parent can be depicted as
(a) TTWW
(b) TTww
(c) TtWW
(d) TtWw
Question 2. An example of homologous organs is
(a) our arm and a dog’s fore-leg.
(b) our teeth and an elephant’s tusks.
(c) potato and runners of grass.
(d) all of the above.
Question 3. In evolutionary terms, we have more in common with
(a) a Chinese school-boy.
(b) a chimpanzee.
(c) a spider.
(d) a bacterium.
Question 4. A study found that children with light-coloured eyes are likely to have parents
with light-coloured eyes. On this basis, can we say anything about whether the
light eye colour trait is dominant or recessive? Why or why not?
Question 5. How are the areas of study – evolution and classification – interlinked?
Question 6. Explain the terms analogous and homologous organs with examples.
Question 7. Outline a project which aims to find the dominant coat colour in dogs.
Question 8. Explain the importance of fossils in deciding evolutionary relationships.
Question 9. What evidence do we have for the origin of life from inanimate matter?
Question 10. Explain how sexual reproduction gives rise to more viable variations than asexual
reproduction. How does this affect the evolution of those organisms that reproduce
sexually?
Question 11. How is the equal genetic contribution of male and female parents ensured in the
progeny?
Question 12. Only variations that confer an advantage to an individual organism will survive in
a population. Do you agree with this statement? Why or why not?
Please Wait pdf file is loading (कृपया इंतजार करें pdf file लोड हो रही है)...
Loading speed will depend up on your download speed. Pdf file के लोड होने में लगा समय आपकी डाउनलोड स्पीड पर निर्भर करेगा
Copyright @ ncerthelp.com A free educational website for CBSE, ICSE and UP board.