Genetic diversity refers to the total number of genetic components in the genetic composition of a species. Genetic diversity arises due to the recombination, mutation, random mating and such related activities.
1. Trade name of genetically engineered insulin is
(a) Beta insulin
(b) Humilin
(c) Anulin
(d) Gilbert’s insulin
Answer: (b)
2. What is the consequence of a change in the genetic diversity
(a) results in loss of biological diversity
(b) leads to an increase in the population
(c) results in loss of human species only
(d) causes pollution
Answer: (a)
3. Increasing genetic diversity interprets daughter chromosome contains genes from
(a) None of the parents
(b) Single parent
(c) Both parents
(d) synthesis of own genes
Answer: (c)
4. A phenomenon occurring during prophase I of meiosis is
(a) Mutation
(b) Synapsis
(c) Translation
(d) Crossing over
Answer: (b)
5. Crossing over refers to
(a) thickening of chromosome
(b) change in chromosome
(c) Mutation
(d) exchange of segments between sections of chromosome
Answer: (d)
6. State the way in which increasing species diversity can affect the ecosystem
(a) it does not increase the efficiency and productivity of an ecosystem
(b) it increases only the efficiency and not the productivity of an ecosystem
(c) it increases the productivity and efficiency of an ecosystem
(d) it only increases the productivity of an ecosystem
Answer: (c)
7. Why does genetic diversity have a major role in the adaptability and survival of a species?
(a) any population should remain the same regardless of the outer change in the
environment
(b) Ability of population to adapt to changing environment
(c) Environment remains unchanged even if the population changes
(d) Population inability to adapt to changing environment
Answer: (b)
8. This biodiversity boosts the oxygen availability
(a) Ecosystem diversity
(b) Species diversity
(c) Genetic diversity
(d) Cell diversity
Answer: (a)
9. A country with several different habitat types is said to have a high degree of
(a) Genetic diversity
(b) Species diversity
(c) Biodiversity
(d) Habitat diversity
Answer: (d)
10. This is the importance of species diversity
(a) species interacts with its environment and hence performs some functions
(b) species never interact with the environment
(c) species minimize interaction with its environment and hence performs certain
functions
(d) species does not perform functions though it interacts with the environment
Answer: (a)
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