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Heredity
5 Theory-Based MCQ Tests • 10 Questions Each • 50 Questions
Instructions
- 5 separate tests with 10 questions each.
- Only theory/concept-based questions are included.
- Submit a test to calculate your score.
- Correct answers remain hidden until the password is entered.
Password: required only after submission to reveal correct answers.
Test 1 — Mendel & Basic Heredity
10 questions • 1 mark each1. The branch of biology that deals with heredity and variation is:
2. Mendel used the term ______ for what are now called genes.
3. The resemblance of individuals to their progenitors is called:
4. The genetic constitution of an organism is called its:
5. The observable characters of an organism are referred to as its:
6. Mendel's laws are known as the laws of:
7. Mendel considered how many contrasting characters of pea plants in his experiments?
8. Mendel proposed that every character is controlled by:
9. A gene is described in the source as the functional unit of:
10. Mendelism is related to:
Correct answers are locked.
Test 2 — Dominance, Alleles & Crosses
10 questions • 1 mark each1. An allele is said to be dominant when it is expressed in:
2. Different forms of a gene are called:
3. The dwarf trait in Mendel's pea experiments was:
4. A tall plant represented by Tt is:
5. A true-breeding tall plant is represented by:
6. A tall plant that always produces tall offspring is described as:
7. According to the law of segregation, germ cells receive:
8. A monohybrid cross deals with inheritance of:
9. A dihybrid cross deals with inheritance of:
10. The 9 : 3 : 3 : 1 ratio is associated with a:
Correct answers are locked.
Test 3 — Chromosomes, Sex Determination & Genetics
10 questions • 1 mark each1. A normal human being has how many chromosomes?
2. Human females normally have which sex chromosome combination?
3. Human males normally have which sex chromosome combination?
4. The sex of a human child is genetically determined at the time of:
5. A human female produces ova carrying:
6. A human male produces two types of sperm carrying:
7. A zygote that inherits an X chromosome from the father develops as:
8. The maleness of a child is associated with the presence of:
9. The chromosomes responsible for determining sex are called:
10. Genes are located on:
Correct answers are locked.
Test 4 — Variations & Evolution
10 questions • 1 mark each1. Differences between organisms belonging to the same species are called:
2. Which is an example of continuous variation from the source?
3. Traits acquired during an organism's lifetime are called:
4. Acquired characters are generally not inherited because they do not change the DNA of:
5. Accumulation of variations can increase the chances of survival in a:
6. A sudden change in genetic material is called:
7. All variations in a species have:
8. The selection of individuals with desired characters by humans is called:
9. The basis for distinguishing two similar groups as separate species is:
10. Selection of variations by environmental factors forms a basis of:
Correct answers are locked.
Test 5 — Homologous & Analogous Organs
10 questions • 1 mark each1. Homologous organs generally have:
2. Analogous organs generally have:
3. Which pair represents homologous structures?
4. Carrot and radish are considered homologous because both are:
5. Wings of insects and wings of bats are considered analogous because they:
6. The presence of homologous organs in organisms indicates:
7. Human arms, seal flippers and bird wings are examples of:
8. Wings of butterfly, housefly and bat are examples of:
9. Potato and sweet potato are described in the source as:
10. The main distinction between homologous and analogous organs is based on:
Correct answers are locked.
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