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Biology 10 Chapter 15 - Inheritance - 13
1.
Which of the following process is the important source of variations?
a) Fragmentation
b) Budding
c) Binary fission
d) Genetic recombination
2.
Which of the following process is produced through crossing over?
a) Gene flow
b) Genetic recombination
c) Mutations
d) Fertilization
3.
During which process crossing over occurs?
a) Apoptosis
b) Necrosis
c) Meiosis
d) Mitosis
4.
Which of the following process is the important source of variations?
a) Binary fission
b) Budding
c) Fragmentation
d) Mutations
5.
What are changes in DNA called?
a) Fertilization
b) Gene flow
c) Genetic recombination
d) Mutations
6.
What is meant by mutations?
a) Changes in DNA
b) Changes in organisms
c) Changes in RNA
d) Changes in cells
7.
Mutations are important source of.................?
a) Combination
b) None of these
c) Variations
d) Reproduction
8.
Changes in DNA are important source of.................?
a) Variations
b) Reproduction
c) Combination
d) None of these
9.
When mutations happen?
a) During budding
b) During fragmentation
c) During fertilization
d) During gamete formation
10.
When changes in DNA happen?
a) During fertilization
b) During budding
c) During gamete formation
d) During fragmentation
11.
During which process, mutations happen?
a) Meiosis
b) Necrosis
c) Mitosis
d) Apoptosis
12.
During which process, changes in DNA happen?
a) Necrosis
b) Mitosis
c) Meiosis
d) Apoptosis
13.
During which process, one of the millions of sperms combines with a single egg?
a) Genetic recombination
b) Mutations
c) Fertilization
d) Gene flow
14.
Which of the following process is the important source of variations?
a) Budding
b) Fragmentation
c) Fertilization
d) Binary fission
15.
What is the movement of genes from one population to another called?
a) Mutations
b) Genetic recombination
c) Gene flow
d) Fertilization
16.
Which of the following process is the important source of variations?
a) Budding
b) Binary fission
c) Gene flow
d) Fragmentation
17.
What is the possible combination of chromosomes at fertilization stage in humans?
a) 70,368,744,177,664
b) 70,368,744,177,774
c) 70,368,744,177,884
d) 70,368,744,177,994
18.
How many genetically different children a couple can produce?
a) 70 million
b) 700 thousand
c) 70 billion
d) 70 trillion
19.
Which variation shows distinct phenotypes?
a) Discontinuous variation
b) Continuous variation
c) None of these
d) Complete variation
20.
How many types of inheritable variations are?
a) Four
b) Two
c) Five
d) Three
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