CBSE Class 10 Science Multiple Choice Questions(MCQs) & Answers CBSE Class 10 Science QUESTIONS

CBSE Class 10 Science Multiple Choice Questions(MCQs) & Answers

21 The process of the division of cell into several cells during reproduction in Plasmodium is termed as:

A Multiple fission

B Binary fission

C Fragmentation

D Budding

Answer: Multiple fission

22 Which of the following pair of organ is not homologous?

A Wings in butterfly and bat

B Forelimbs in lizard and frog

C Forelimbs in humans and lizard

D None of these

Answer: Wings in butterfly and bat

23 The organs present in two organisms indicate that they are derived from the same ancestor are:

A Homologous Organs

B Sense organs

C Analogous Organs

D Respiratory Organs

Answer: Homologous Organs

24 What is the ancient name for all human beings?

A Homo sapiens

B Invertebrates

C Monkey

D Chimpanzee

Answer: Homo sapiens

25 What could be the reason for the fossil of an organism to be found in the deeper layers of the earth?

A The extinction of organism has occurred thousands of years ago

B Time of extinction cannot be determined.

C The extinction of organism has occurred few years back

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

Answer: The extinction of organism has occurred thousands of years ago

26 Which is the one characteristic of the parents that can be inherited by their children?

A Snub nose

B Cut nose

C Deep scar on chin

D Technique of swimming

Answer: Snub nose

27 Which of the following determines the sex of a child?

A The presence of a Y chromosome in a sperm

B The presence of an X chromosome in an ovum

C The length of the mother’s pregnancy

D The length of time between ovulation and copulation

Answer: The presence of a Y chromosome in a sperm

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

A Tallness is the recessive trait

B Tallness is the dominant trait

C Shortness is the dominant trait

D Height of plant is not governed by gene t or t

Answer: Tallness is the dominant trait

29 Which position of the object will produce a magnified virtual image, if a concave mirror of focal length 15 cm is being used?

A 35 cm

B 20 cm

C 10 cm

D 30 cm

Answer: 10 cm

30 An object is placed at 100 mm in front of a concave mirror which produces an upright image (erect image). The radius of curvature of the mirror is:

A More than 200 mm

B Exactly 200 mm

C Less than 100 mm

D Between 100 mm and 200 mm

Answer: More than 200 mm

CBSE Class 10 Science Multiple Choice Questions(MCQs) & Answers

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