Class 10 Science Heredity and Evolution MCQs Online Test

Heredity and Evolution is one of the most important science chapters in class 10. We have Heredity and Evolution class 10 multiple-choice questions available online to help you get better at science. Experts in the field have produced these Class 10 Heredity and Evolution Multiple Choice Questions. Students can have a better understanding of complex science ideas by using Heredity and Evolution Class 10 Multiple Choice Questions. We’ve taken the effort to offer something special that can make science enjoyable. Practice the science multiple-choice questions that we have provided on our website with enjoyment.

The MCQ for class 10 Heredity and Evolution was created using the most recent science curriculum from CBSE. You should practice Class 10 Heredity and Evolution MCQ on a regular basis to ensure that you receive high exam scores.

We have created class 10 Heredity and Evolution multiple-choice questions (MCQs) to assist you in your preparation since success in science requires consistent practice.

Class 10 Science Heredity and Evolution MCQs Online Test

Class 10 Science Heredity and Evolution online MCQs Mock Test 1

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Q1. Exchange of genetic material takes place in

sexual reproduction

vegetative reproduction

asexual reproduction

budding

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Q2. Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be

double fertilisation

cross fertilisation

self pollination

no fertilisation

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Q3. A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because

tallness is the dominant trait

tallness is the recessive trait

height of pea plant is not governed by gene ‘T’ or ‘t’

shortness is the dominant trait

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Q4. Which of the following statement is incorrect?

For every protein there is a gene

For every hormone there is a gene

For production of every enzyme there is a gene

For every molecule of fat there is a gene

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Q5. 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

wrinkled and green

wrinkled and yellow

round and green

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Q6. In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are
(i) large chromosome
(ii) small chromosome
(iii) Y-chromosome
(iv) X-chromosome

i and ii

ii and iv

iii only

iii and iv

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Q7. The maleness of a child is determined by

the Y chromosome in zygote

the X chromosome in the zygote

sex is determined by chance

the cytoplasm of germ cell which determines the sex

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Q8. A zygote which has an X-chromosome inherited from the father will develop into a

either boy or girl

boy

girl

X- chromosome does not determine the sex of a child

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Q9. Select the incorrect statement

Reduction in weight of the organism due to starvation is genetically controlled

Traits which are not inherited over generations do not cause evolution

Low weight parents can have heavy weight progeny

Frequency of certain genes in a population change over several generations resulting in evolution

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Q10. New species may be formed if
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place

(i) and (iii)

(ii), (iii) and (iv)

(i), (ii) and (iii)

(i) and (ii)

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Q11. Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have
round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have new combination of characters. Choose the new
combination from the following:
(i) Round, yellow
(ii) Round, green
(iii) Wrinkled, yellow
(iv) Wrinkled, green

(i) and (ii)

(ii) and (iii)

(i) and (iv)

(i) and (iii)

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Q12. A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?

Carrot and potato

Radish and potato

Carrot and tomato

Radish and carrot

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Q13. Select the correct statement

Wings of birds and limbs of lizards are analogous

Tendril of a pea plant and phylloclade of Opuntia are analogous

Wings of birds and wings of bat are homologous

Tendril of a pea plant and phylloclade of Opuntia are homologous

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Q14. If the fossil of an organism is found in the deeper layers of earth, then we can predict that

the extinction of organism has occurred recently

the extinction of organism has occurred thousands of years ago

the fossil position in the layers of earth is not related to its time of extinction

time of extinction cannot be determined

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Q15. Which of the following statements is not true with respect to variation?

Selection of variants by environmental factors forms the basis of evolutionary processes

Change in genetic composition results in variation

Variation is minimum in asexual reproduction

All variations in a species have equal chance of survival

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Q16. A trait in an organism is influenced by

maternal DNA only

paternal DNA only

both maternal and paternal DNA

neither by paternal nor by maternal DNA

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Q17. Select the group which shares maximum number of common characters

two species of a genus

two genera of two families

two individuals of a species

two genera of a family

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Q18. According to the evolutionary theory, formation of a new species is generally due to

clones formed during asexual reproduction

movement of individuals from one habitat to another

accumulation of variations over several generations

sudden creation by nature

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Q19. From the list given below, select the character which can be acquired but not inherited

size of body

nature of hair

colour of eye

colour of skin

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Q20. In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2
is

3 : 1

2 : 1

1 : 3

1 : 1

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Class 10 Science Heredity and Evolution MCQs Online Test

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