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Science : Ch 09 – Heredity and Evolution

This test is designed based on NCERT Syllabus for Class 10 Topics : Heredity and Evolution

  • Each time random 15 questions will be displaced
  • So retake the quiz till you have mastered all the questions

1 / 15

Assertion (A) : Acquired traits cannot be passed from one generation to next generation. Reason (R) : Inaccuracy during DNA copying of acquired trait is minimum.

2 / 15

Assertion (A) : Inheritance from the previous generation provides subtle changes in body design for the next generation. Reason (R) : Greater diversity will be generated if asexual reproduction is involved.

3 / 15

Assertion (A) : New combination of traits are observed in F2 offspring when tall plants with round seeds are crossed with short plants with wrinkled seeds. Reason (R) : Tallness and round seed are both dominant traits.

4 / 15

Mendel crossed the round and green seeded pea plants with the wrinkled and yellow seeded pea plants. Give the phenotypic ratio of F2 generation.

5 / 15

Why did Mendel carry out an experiment to study inheritance of two traits in garden-pea

6 / 15

What is the phenotypic ratio obtained in Mendels dihybrid cross

7 / 15

Name the plant Mendel used of F1 & F2 generation cross of tall and short plant experiment.

8 / 15

Total number of chromosomes along with the sex chromosomes that are present in a human female and a human male.

9 / 15

A cross between a tall plant (TT) and short plant (tt) resulted in progeny that were all tall plants as:

10 / 15

Which of the following statement is inappropriate?

11 / 15

The two versions of a trait (character) which are brought in by the male and female gametes are located on:

12 / 15

Name the organ analogous to the wings of birds.

13 / 15

Two pink coloured fowers on crossing resulted in 1 red, 2 pink and 1 white fower progeny. The nature of the cross will be:

14 / 15

If a round, green-seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant, (rr YY), the seeds production in F1 generation are:

15 / 15

Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that:

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