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WorksheetsJEE BIO mock test-3
Total questions: 40
Worksheet time: 40mins
Variation is observed in _ _ _ _ _
Asexual reproduction
Sexual reproduction
Both asexual reproduction and sexual reproduction
Both asexual reproduction and sexual reproduction
The number of genes is _ _ _ _ _ the number of chromosomes
Same as
less than
More than
less than or equal to
Mutation theory was described by _ _ _ _ _
Lamarck
Hugo De Vries
Darwin
Weismann
The process of inheritance of characters in living beings is called _ _ _ _ _
Heredity
evolution
Variation
migration
_ _ _ _ _ gives detailed information of variation and evolution
Lamarckism
Modern synthetic theory
Recapitulation theory
Darwinism
Individual variation means _ _ _ _ _
Heredity
Variation
Evolution
Similarities
The branch of biology related with heredity and variation is called _ _ _ _ _
Genetics
Evolution
Taxonomy
Livinglogy
Boveri and Sutton proved that _ _ _ _ _
Factor is responsible for information of heredity.
Variation is inherited generation to generation.
Chromosomes are transported by gametes.
Gene is a part of a chromosome
The number of chromosomes in comparison to the number of genes is _ _ _ _ _
less
more
equal
more or equal
The unit of expression of genetic information from one generation to another generation is _ _ _ _ _
DNA
RNA
Both DNA & RNA
blood
The transmission of characters from parents to the off-springs is called as _ _ _ _ _
Inheritance
Heredity
evolution
Both 1,2
_ _ _ _ _ , _ _ _ _ _ showed that gene is a part of chromosome
Mendel and Darwin
Johnson and Cribson
Watson and crick
T. Boveri and W.S. Sutton
_ _ _ _ _ is a process in which, due to small changes in the heredity of one generation gives rise to a new generation with different characters
Heredity
Speciation
Evolution
Population
_ _ _ _ _ gave the Theory of Natural Selection
Watson
Mendel
Darwin
Aristotle
When Mendel crossed tall plant with dwarf plant, what was the proportion of dwarf plant in F, generation?
75%
25%
60%
40%
In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F, is _ _ _ _ _
1:3
3:1
1:1
2:1
If characters of T are expressed in F, generation by Tt, then T is said to be _ _ _ _ _
Recessive gene
Dominant gene
Alternate gene
Only gene
What type of plant is developed, if crossing is made between plant having TT and plant having tt genes?
Tall and dwarf plants
All tall plants
All dwarf plants
None of these
What is the ratio of monohybrid cross in F, generation?
11:3
3:2
2:1
3:1
What is the percentage possessed by tall plants in monohybrid experiment?
100%
75%
50%
25%
What can be the genetic composition for yellow colour and round seeds?
YYRR
YYrr
yyRR
yyrr
The genes for green colour and wrinkled seeds are _ _ _ _ _
YYRR
YYrr
yyRR
yyrr
The genes for yellow colour and wrinkled seeds are _ _ _ _ _
YYRR
YYrr
yyRR
yyrr
The genes for green colour and rounded seeds are _ _ _ _ _
YYRR
YYrr
yyRR
yyrr
The ratio for dihybrid cross experiments is _ _ _ _ _
13:1:1:3
11:1:1:3
3:1:1:11
9:3:3:1
In F2 generation of plants _ _ _ _ _% plants were dwarf and _ _ _ _ _ % plants were tall in Mendel's experiment.
50%, 50%
25%, 75%
75%, 25%
100%, 0%
In which animal, the embryo develops into a male at high temperature?
lizard
turtle
grasshopper
fish
Which principle was given by Darwin?
Inheritance of acquired characters
Germplasm theory
Mutation theory
Theory of natural selection
The principle of inheritance of acquired characters was given by _ _ _ _ _
Lamarck
Weismann
Darwin
Hugo De Vries
_ _ _ _ _ gave Germplasm Theory.
Lamarck
Weismann
Darwin
Hugo De Vries
A sudden inheritable change in the nature of a gene is called _ _ _ _ _
Variation
Mutation
Genetic Drift
Gene flow
A cross between a tall plant (TT) and short pea plant (t) resulted in progeny that were all tall plants because _ _ _ _ _
Tallness is the dominant trait
Shortness is the dominant trait
Tallness is the recessive trait
Height of pea plant is not governed by gene T or t
Which of the following statement is incorrect?
For every hormone there is a gene.
For every protein there is a gene.
For production of every enzyme there is a gene.
For every molecule of fat there is a gene,
If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant, (rr YY) the seeds produced in F1 generation are _ _ _ _ _
Round and yellow
Round and green
Wrinkled and green
Wrinkled and yellow
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are
large chromosome
small chromosome
Y chromosome
X- chromosome
The maleness of a child is determined by _ _ _ _ _
The X chromosome in the zygote
The Y chromosome in zygote
The cytoplasm of germ cell which determines the sex
Sex is determined by chance
A zygote which has an X-chromosome inherited from the father will develop into a _ _ _ _ _
Boy
Girl
X- chromosome does not determine the sex of a child
Either boy or girl
Select the incorrect statement
Frequency of certain genes in a population change over several generations resulting in evolution
Reduction in weight of the organism due to starvation is genetically controlled
Low weight parents can have heavy weight progeny
Traits which are not inherited over generations do not cause evolution
New species may be formed if _ _ _ _ _
DNA undergoes significant changes in germ ceus
chromosome number changes in the gamete
there is no change in the genetic material
both 1 and 2
Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) Seeds produce F, progeny that have round, yellow (RrYy) seeds. When F, plants are selfed, the F, progeny will have new combination of characters. Choose the new combination from the following
Round, yellow
Round, green
Wrinkled, yellow
Wrinkled, green
