Heredity Class 10 Science Assertion and Reason Questions
Heredity Class 10 Science Assertion and Reason Questions has been provided by JEE Wallah to help students score good marks in their CBSE and Competitive exams. Assertion and Reason Questions for Class 10 Science Chapter 8 Heredity is very important as these questions are asked in the Board Exam. Heredity Class 10 Science Assertion and Reason Questions will help you check whether you have grasped the conceptual learning or not.
Heredity Class 10 Science Assertion and Reason Questions
Are you looking for Heredity Class 10 Science Assertion and Reason Questions
so that you can focus on your study to better perform in the upcoming
CBSE Class 10 Board examination? If so, you are at the right place, our
subject experts have prepared Heredity Class 10 Assertion & Reasoning Questions which will boost up your preparation
level.
Despite the fact that Assertion and Reason Questions for Class 10 Science Chapter 8 Heredity can be solved only by having proper conceptual
knowledge, we are giving you some tips that can help you solve
Assertion and Reasoning questions for Class 10 Science Heredity.
The tips are : Read the Question Carefully; Analyze the Assertion
statement; Analyze the Reason statement; Check if the Reason Statement
Explains the Assertion Statement.
Our last tip is : Practice Heredity Class 10 Science Assertion and Reason Questions with answers as much as possible.
Assertion and Reason Questions for Class 10 Science Chapter 8 Heredity
1.
(A) - Variations are seen in offspring produced by sexual reproduction.
(R) - DNA molecule generated by replication is not exactly identical to original DNA.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
2.
(A) - Mutation is sudden change in the genetic material.
(R) - Variation is useful for the survival of species over time.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
3.
(A) - Mendel selected the pea plant for his experiments.
(R) - Pea plant is cross-pollinating and has unisexual flowers.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
4.
(A) - Evolution is an extremely slow process.
(R) - New characters are accumulated in an organism during its lifetime.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
5.
(A) - Pea plant is considered ideal for hybridisation experiments.
(R) - Pea is self pollinating plant with short life cycle and bears visible contrasting traits.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A
6.
(A) - The sex of a child is determined by the mother.
(R) - Humans have two types of sex chromosomes: XX and XY.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(d) A is false but R is true.
7.
(A) - Traits like tallness and dwarfness in pea plant are inherited independently.
(R) - When a homozygous tall pea plant is crossed with dwarf pea plant, medium sized pea plant is obtained in F, generation.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
"Sharing is Caring" Share Heredity Class 10 Science Assertion and Reason Questions with your friends !
8.
(A) - In humans, height is a trait which shows variation.
(R) - Some humans are very tall, some have medium height whereas others are short heighted.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
9.
(A) - According to Darwin, all organisms compete with each other for existence.
(R) - During the struggle for existence there is survival of the fittest.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
10.
(A) - Accumulation of variation in a species increases the chances of its survival in changing environment.
(R) - Accumulation of heat resistance in some bacteria ensure their survival even when temperature in environment rises too much.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
11.
(A) - Monohybrid cross deals with inheritance of one pair of contrasting characters.
(R) - Dihybrid cross deals with inheritance of two pairs of contrasting characters.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
12.
(A) - If blood group of both mother and father is O then the blood group of children will also be O.
(R) - Blood group in humans is determined by many alleles of a gene viz. IA, IB, I0.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
13.
(A) - In humans, male is responsible for sex of the baby which is born.
(R) - Y chromosomes are present in only male gametes or sperms.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
14.
(A) - Selfing of a plant for several generations helps plant breeders to obtain pure breeding varieties.
(R) - Pure breeding plants are heterozygous for many traits.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
15.
(A) - A geneticist crossed two plants and got 50% tall and 50% dwarf progenies.
(R) - This cross follows Mendelian law as one of the parent plant might be heterozygous.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
How much do you like Heredity Class 10 Science Assertion and Reason Questions ! Give Feedback
16.
(A) - In human males all the chromosomes are perfectly paired except X and Y chromosomes.
(R) - X and Y are sex chromosomes.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
17.
(A) - Genes present in every cell of an organism control the traits of the organisms.
(R) - Gene is specific segment of DNA occupying specific position on a chromosome.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
18.
(A) - A child which has inherited X chromosome from father will develop into a girl child.
(R) - Girl child inherits X chromosome from father and Y chromosome from mother.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
19.
(A) - In grasshoppers, females are heterogametic and males are homogametic.
(R) - In grasshoppers, male has only one sex chromosome (XO) whereas the female has sex chromosome (XX).
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(d) A is false but R is true.
20.
(A) - If mother is homozygous for black hair and father has red hair then their child can inherit black hair.
(R) - Gene for black hair is recessive to gene for red hair in humans.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Answer
(c) A is true but R is false.
You may also like:
We hope that Heredity Class 10 Science Assertion and Reason Questions will help you in a variety of ways. Solving the Assertion and Reason Questions for Class 10 Science Chapter 8 Heredity will help you boost your confidence level in the subject overall. If you have any query, please feel free to reach us !