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Class 10 Science Chapter Heredity and Evolution - Part 2

NCERT Class 10 Science Chapter Heredity and Evolution. Topics Heredity, DNA, Genes, Mendel’s Laws of Inheritance, Natural Selection, Speciation, Evolution.

Class 10th
40 Questions
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Q1 • MCQ • 1 marks
If the father's sperm carries an X chromosome, the child will be:
Q3 • MCQ • 1 marks
Which trait is dominant in Mendel's pea plants?
Q4 • MCQ • 1 marks
If the father's sperm carries a Y chromosome, the child will be:
Q5 • MCQ • 1 marks
The observable characteristics of an organism are called:
Q6 • MCQ • 1 marks
The genetic constitution of an organism is called:
Q7 • MCQ • 1 marks
Which one is a dominant trait in pea plants?
Q8 • MCQ • 1 marks
A cross involving one pair of contrasting characters is called:
Q9 • MCQ • 1 marks
Age of fossils is determined by:
Q10 • MCQ • 1 marks
A cross involving two pairs of contrasting characters is called:
Q11 • MCQ • 1 marks
The phenotypic ratio of a dihybrid cross (F₂) is:
Q12 • MCQ • 1 marks
Mendel's Law of Segregation states that:
Q13 • MCQ • 1 marks
Mendel's Law of Independent Assortment applies to:
Q14 • MCQ • 1 marks
Which scientist gave the theory of natural selection?
Q15 • MCQ • 1 marks
A recessive trait appears only when:
Q16 • MCQ • 1 marks
"Survival of the fittest" is associated with:
Q17 • MCQ • 1 marks
Fossils are mainly found in:
Q18 • MCQ • 1 marks
Fossils help us understand:
Q19 • MCQ • 1 marks
Analogous organs show:
Q20 • MCQ • 1 marks
The forelimbs of humans, whales, and bats are examples of:
Q21 • MCQ • 1 marks
Wings of birds and insects are:
Q22 • MCQ • 1 marks
Homologous organs have:
Q23 • MCQ • 1 marks
Which type of reproduction produces maximum variation?
Q24 • MCQ • 1 marks
The sex chromosomes in females are:
Q25 • MCQ • 1 marks
The alternative forms of a gene are called:
Q26 • MCQ • 1 marks
The sex chromosomes in males are:
Q27 • MCQ • 1 marks
The Y chromosome is inherited from the:
Q28 • MCQ • 1 marks
Which parent always contributes an X chromosome?
Q29 • MCQ • 1 marks
Mendel performed his experiments on:
Q30 • MCQ • 1 marks
The probability of a male child is:
Q31 • MCQ • 1 marks
Which chromosome combination produces a female child?
Q32 • MCQ • 1 marks
Which chromosome combination produces a male child?
Q33 • MCQ • 1 marks
Which statement is correct?
Q34 • MCQ • 1 marks
Evolution does NOT occur because of:
Q35 • MCQ • 1 marks
DNA is mainly present in the:
Q36 • MCQ • 1 marks
The ultimate source of variation in organisms is:
Q37 • MCQ • 1 marks
The smallest unit of inheritance is:
Q38 • MCQ • 1 marks
Which of the following can lead to the formation of a new species?
Q39 • MCQ • 1 marks
Darwin observed natural selection during his visit to:
Q40 • MCQ • 1 marks
Evolution takes place over:
Q41 • MCQ • 1 marks
Which is a connecting link between reptiles and birds?

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