Exchange of genetic material takes place in? Mark as favorite Copy Link Budding Asexual reproduction Vegetative reproduction Sexual reproduction Check Answer
If a plant is heterozygous for tallness, the F generation has both tall and dwarf plants. This proves the principle of? Mark as favorite Copy Link incomplete dominance independent assortment segregation dominance Check Answer
Surgically removing tails of mice over several generations do not yield mice without tails. This proves that? Mark as favorite Copy Link Cutting tail does not cause genetic change. So it not inherited. Acquired characters during ones own life are not inherited. Neither a nor b is correct Both a and b are correct Check Answer
When a true breeding tall plant is crossed with a true breeding short plant and the F produced is self pollinated to produce F ratio of true breeding tall and true breeding short plant in F will be? Mark as favorite Copy Link 1 : 3 1 : 2 1 : 1 2 : 1 Check Answer
A cross between a tall plant (tt) and short pea plant (tt) resulted in progeny that were all tall plants because? Mark as favorite Copy Link Height of pea plant is not governed by gene ‘T’ or ‘t’ Tallness is the recessive trait Shortness is the dominant trait Tallness is the dominant trait Check Answer
Which concept was not included in Charles Darwin’s theory of Natural Selection? Mark as favorite Copy Link Overproduction of offspring. Survival of the fittest Punctuated equilibrium Struggle for existence Check Answer
Natural selection is called ‘survival of the fittest’. Which of the following statements best describes an organism? Mark as favorite Copy Link The number of fertiie offspring it has. The ability to adapt to the environment in the niche it occupies. How much food and resources it is able to gather for its offspring. How strong it is compared to other individuals of the same species. Check Answer
Those organs which have the same basic structure but different functions are called? Mark as favorite Copy Link Analogous organs Homologous organs Vestigial organs None of these Check Answer
Which of the following is the ancestor of ‘Broccoli’? Mark as favorite Copy Link Kale Wild cabbage Cauliflower Cabbage Check Answer
A zygote which has an X-chromosome inherited from the father will develop into a? Mark as favorite Copy Link either boy or girl X-chromosome does not influence the sex of a child girl boy Check Answer