Heredity and Evolution Class 10 Case Study Questions Science Chapter 9

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Last Updated on December 12, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 10 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 10 science. In this article, you will find case study questions for cbse class 10 science chapter 9 Heredity and Evolution.

Chapter	Heredity and Evolution
Type of Questions	Case Study Questions
Nature of Questions	Competency Based Questions
Board	CBSE
Class	10
Subject	Science
Useful for	Class 10 Studying Students
Answers provided	Yes
Difficulty level	Mentioned
Important Link	Class 10 Science Chapterwise Case Study

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Table of Contents

Case Study Questions on Heredity and Evolution

Questions

Question 1:

Read the following and answer the questions given below:

Sex determination is the method by which distinction between males and females is established in a species. The sex of an individual is determined by specific chromosomes. These chromosomes are called sex chromosomes. X and Y chromosomes are called sex chromosomes. The normal chromosomes other than the sex chromosomes of an individual are known as autosomes.

Read the above passage carefully and give the answer of the following questions:

Q1. A normal baby girl receives her X chromosome from whom: mother, father, both mother and father or either from mother or father?

Q 2. A couple has six daughters. What is the possibility of them having a girl next time?

Q 3. Do genetic combination of mothers play a significant role in determining the sex of a new born?

Q 4. Which vital function is not controlled by autosomes?

Answers

From both mother and father.
The possibility of having a girl or boy child is equal i.e., 50% as 50% male gametes are Y type and 50% are X type.
No, because mothers have a pair of X chromosomes. All children will inherit an X chromosome from their mother regardless of whether they are boys or girls.
Sex of a child is not controlled by autosomes.

Also check

Topics from which case study questions may be asked

Heredity
Mendel’s Contribution
- Laws for Inheritance of Traits
Sex Determination (Brief Introduction)
Basic Concepts of Evolution

Case study questions from the above topics may be asked.

Helpful Links for CBSE Class 10 Science Preparation

Frequently Asked Questions (FAQs) on Heredity and Evolution Case Study Questions

Q1: What are case study questions for CBSE examinations?

A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.

Q2: Why are case study questions important for understanding class 10 science chapters?

A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.

Q3: How should students approach answering case study questions for CBSE?

A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of chemical reactions and equations, and formulate well-supported solutions or responses.

Q4: Are there any resources available online for students to practice case study questions on class 10 science chapters for CBSE exams?

A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience. If you need more case study questions for your preparation, then you visit Physics Gurukul website.

Q5: How can students effectively prepare for case study questions on Heredity and Evolution for CBSE exams?

A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.

Q6: How can teachers incorporate case study questions on Heredity and Evolution class 10 science into classroom teaching?

A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of Heredity and Evolution.

Q7: How are heritable genetic variations produced?

Ans. Heritable genetic variations are produced due to inaccuracies in DNA duplication during cell division.

Q8: How do genes work?

A8: Genes function through formation of specific proteins that serve as a structural or functional component required for
expression of a character.

Q9: What is meant by a recessive trait?

A9: Recessive trait means the trait, which is unable to express itself in the presence of dominant trait.

Q10: What is meant by alleles?

A10: Alleles are a pair unit factors that control the expression of a character.

Q11: What happens when pea plants showing two different characteristics, rather than just one, are bred with each other?

A11: In F1 progeny both dominant traits are expressed. In F2 progeny 9:3:3:1 ratio is obtained because the two characteristics assort independently

Q12: Name the hormone that causes tallness in pea plant.

A12: In pea plants tallness depends on production of the hormone gibberellin.

Q13: What are the two kinds of variations in attachment of ear lobes in humans?

A13: Ear lobes are closely attached at the base in some people and are free in some people.

Q14: Define variation.

A14: Variation refers to differences among individual related by descent.