Genetics & Skeletal System MCQ Quiz – Part 1
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This Genetics & Skeletal System MCQ Quiz helps aspirants revise important concepts related to heredity, genes, and the structure and functions of the human skeletal system, which are frequently asked in competitive exams. Regular practice of these MCQs improves conceptual understanding and helps candidates answer biology questions quickly and accurately.
GK Series – Biology – Genetics & skeletal System MCQ Quiz |
|
| Subject | Biology |
| Chapter | Genetics & skeletal System |
| Part | 1 |
| Questions | 25 |
Who Should Attempt This Genetics & skeletal System MCQ Quiz?
This Genetics & Skeletal System MCQ Quiz is useful for aspirants preparing for SSC, Railways, Banking, Defence, and other government job exams, where basic biology questions are commonly asked in the General Knowledge section.
Topics Covered in This Genetics & skeletal System MCQ Quiz
This Genetics & Skeletal System MCQ Quiz is useful for aspirants preparing for SSC, Railways, Banking, Defence, and other government job exams, where basic biology questions are commonly asked in the General Knowledge section.
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Question 1 of 25
1. Question
Heredity is the process of
Correct
➤ Heredity is the transfer of traits from parents to offspring through genes.
➤ It controls physical, behavioural and physiological traits.Incorrect
➤ Heredity is the transfer of traits from parents to offspring through genes.
➤ It controls physical, behavioural and physiological traits. -
Question 2 of 25
2. Question
The basic unit of heredity is
Correct
➤ Gene is the basic unit of heredity.
➤ It is made up of DNA.Incorrect
➤ Gene is the basic unit of heredity.
➤ It is made up of DNA. -
Question 3 of 25
3. Question
Variation refers to
Correct
➤ Variation means differences in traits among individuals of a species.
➤ It helps in survival and evolution.Incorrect
➤ Variation means differences in traits among individuals of a species.
➤ It helps in survival and evolution. -
Question 4 of 25
4. Question
Which type of traits are NOT inherited?
Correct
➤ Acquired traits are developed during lifetime.
➤ They are not passed genetically.Incorrect
➤ Acquired traits are developed during lifetime.
➤ They are not passed genetically. -
Question 5 of 25
5. Question
Which of the following is an inherited trait?
Correct
➤ Inherited traits are passed through DNA.
➤ Example: Eye colour, blood group.Incorrect
➤ Inherited traits are passed through DNA.
➤ Example: Eye colour, blood group. -
Question 6 of 25
6. Question
Alleles are
Correct
➤ Alleles are different forms of the same gene.
➤ They occur at the same position on chromosome.Incorrect
➤ Alleles are different forms of the same gene.
➤ They occur at the same position on chromosome. -
Question 7 of 25
7. Question
Traits are determined by
Correct
➤ Traits are influenced by genes and environment.
➤ Both factors together determine expression.Incorrect
➤ Traits are influenced by genes and environment.
➤ Both factors together determine expression. -
Question 8 of 25
8. Question
Qualitative traits include
Correct
➤ Qualitative traits are controlled by genes only.
➤ Example: Eye colour.Incorrect
➤ Qualitative traits are controlled by genes only.
➤ Example: Eye colour. -
Question 9 of 25
9. Question
Quantitative traits include
Correct
➤ Quantitative traits depend on multiple factors.
➤ Example: Height, weight.Incorrect
➤ Quantitative traits depend on multiple factors.
➤ Example: Height, weight. -
Question 10 of 25
10. Question
Variation is more common in
Correct
➤ Variation is higher in sexual reproduction.
➤ Because two parents contribute genes.Incorrect
➤ Variation is higher in sexual reproduction.
➤ Because two parents contribute genes. -
Question 11 of 25
11. Question
A dominant trait is expressed when
Correct
➤ Dominant trait appears even if one allele is dominant.
➤ It masks the recessive trait.Incorrect
➤ Dominant trait appears even if one allele is dominant.
➤ It masks the recessive trait. -
Question 12 of 25
12. Question
A recessive trait is expressed when
Correct
➤ Recessive trait appears only when both alleles are recessive.
➤ It remains hidden in presence of dominant allele.Incorrect
➤ Recessive trait appears only when both alleles are recessive.
➤ It remains hidden in presence of dominant allele. -
Question 13 of 25
13. Question
Who is known as the Father of Genetics?
Correct
➤ Gregor Mendel is called the Father of Genetics.
➤ He performed experiments on pea plants.Incorrect
➤ Gregor Mendel is called the Father of Genetics.
➤ He performed experiments on pea plants. -
Question 14 of 25
14. Question
Mendel conducted experiments on
Correct
➤ Mendel used pea plant (Pisum sativum).
➤ It showed clear contrasting traits.Incorrect
➤ Mendel used pea plant (Pisum sativum).
➤ It showed clear contrasting traits. -
Question 15 of 25
15. Question
Which of the following is NOT a reason for selecting pea plant?
Correct
➤ Pea plant is easy to pollinate, not difficult.
➤ Hence it was ideal for experiments.Incorrect
➤ Pea plant is easy to pollinate, not difficult.
➤ Hence it was ideal for experiments. -
Question 16 of 25
16. Question
Law of Dominance states that
Correct
➤ Dominant trait expresses in F₁ generation.
➤ Recessive trait remains hidden.Incorrect
➤ Dominant trait expresses in F₁ generation.
➤ Recessive trait remains hidden. -
Question 17 of 25
17. Question
Law of Segregation states that
Correct
➤ Alleles separate during gamete formation.
➤ Each gamete receives one allele.Incorrect
➤ Alleles separate during gamete formation.
➤ Each gamete receives one allele. -
Question 18 of 25
18. Question
Law of Independent Assortment states that
Correct
➤ Different genes assort independently.
➤ Leads to new combinations.Incorrect
➤ Different genes assort independently.
➤ Leads to new combinations. -
Question 19 of 25
19. Question
Mendel’s first law is
Correct
➤ First law is Law of Dominance.
➤ Dominant trait appears in offspring.Incorrect
➤ First law is Law of Dominance.
➤ Dominant trait appears in offspring. -
Question 20 of 25
20. Question
Mendel’s second law is
Correct
➤ Second law is Law of Segregation.
➤ Alleles separate during gamete formation.Incorrect
➤ Second law is Law of Segregation.
➤ Alleles separate during gamete formation. -
Question 21 of 25
21. Question
Monohybrid cross involves
Correct
➤ Monohybrid cross studies inheritance of a single trait.
➤ Example: Tall × dwarf plant.Incorrect
➤ Monohybrid cross studies inheritance of a single trait.
➤ Example: Tall × dwarf plant. -
Question 22 of 25
22. Question
A cross between tall and dwarf plant is an example of
Correct
➤ Single trait (height) is involved.
➤ Hence it is a monohybrid cross.Incorrect
➤ Single trait (height) is involved.
➤ Hence it is a monohybrid cross. -
Question 23 of 25
23. Question
Phenotype refers to
Correct
➤ Phenotype means observable traits.
➤ Example: Tall or short plant.Incorrect
➤ Phenotype means observable traits.
➤ Example: Tall or short plant. -
Question 24 of 25
24. Question
Genotype refers to
Correct
➤ Genotype is genetic constitution (TT, Tt, tt).
➤ It determines phenotype.Incorrect
➤ Genotype is genetic constitution (TT, Tt, tt).
➤ It determines phenotype. -
Question 25 of 25
25. Question
In F₁ generation of monohybrid cross, plants are
Correct
➤ All F₁ offspring show dominant trait.
➤ Recessive trait is hidden.Incorrect
➤ All F₁ offspring show dominant trait.
➤ Recessive trait is hidden.