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Heredity Class 10 PPT

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H E R E D I T Y
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H E R E D I T Y
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Genetics is the field of science that focuses on
the study of heredity and variation.
Heredity refers to the transmission of traits or
characteristics from one generation to the next.
Variation refers to the differences in traits
between parents and offspring.
Heredity and Variation
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H E R E D I T Y
C l a s s - 1 0
Genetics is the field of science that focuses on
the study of heredity and variation.
Heredity refers to the transmission of traits or
characteristics from one generation to the next.
Variation refers to the differences in traits
between parents and offspring.
Heredity and Variation
Types of Variations: Variations can be categorized
into two main types:
 Variation
1.Somatic Variation:
Occurs in the body cells.
Not inherited or transmitted
to the next generation.
Also known as acquired
traits.
Examples include tail
cutting in dogs and piercing
of the pinna (outer ear).
2.Gametic Variation:
Occurs in the gametes or
reproductive cells.
Inherited and transmitted
to offspring.
Also known as inherited
traits.
Examples include human
height and skin color.
Page 4


H E R E D I T Y
C l a s s - 1 0
Genetics is the field of science that focuses on
the study of heredity and variation.
Heredity refers to the transmission of traits or
characteristics from one generation to the next.
Variation refers to the differences in traits
between parents and offspring.
Heredity and Variation
Types of Variations: Variations can be categorized
into two main types:
 Variation
1.Somatic Variation:
Occurs in the body cells.
Not inherited or transmitted
to the next generation.
Also known as acquired
traits.
Examples include tail
cutting in dogs and piercing
of the pinna (outer ear).
2.Gametic Variation:
Occurs in the gametes or
reproductive cells.
Inherited and transmitted
to offspring.
Also known as inherited
traits.
Examples include human
height and skin color.
Heredity involves the passing of traits from
parents to offspring.
Genes, which are functional units of
heredity, carry these traits.
Genes are short segments of DNA that
encode specific proteins or RNA.
Genetics, a branch of biology, is the study of
genes, heredity, and variations.
Heredity
Page 5


H E R E D I T Y
C l a s s - 1 0
Genetics is the field of science that focuses on
the study of heredity and variation.
Heredity refers to the transmission of traits or
characteristics from one generation to the next.
Variation refers to the differences in traits
between parents and offspring.
Heredity and Variation
Types of Variations: Variations can be categorized
into two main types:
 Variation
1.Somatic Variation:
Occurs in the body cells.
Not inherited or transmitted
to the next generation.
Also known as acquired
traits.
Examples include tail
cutting in dogs and piercing
of the pinna (outer ear).
2.Gametic Variation:
Occurs in the gametes or
reproductive cells.
Inherited and transmitted
to offspring.
Also known as inherited
traits.
Examples include human
height and skin color.
Heredity involves the passing of traits from
parents to offspring.
Genes, which are functional units of
heredity, carry these traits.
Genes are short segments of DNA that
encode specific proteins or RNA.
Genetics, a branch of biology, is the study of
genes, heredity, and variations.
Heredity
Heredity Process:
Heredity is the mechanism
through which an organism's
features are passed from one
generation to the next.
Genes play a crucial role in
defining an organism's traits.
Heredity
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FAQs on Heredity Class 10 PPT

1. What is heredity?
Ans. Heredity refers to the passing of traits or characteristics from parents to offspring through genetic information. It is the process by which an offspring acquires and inherits traits, such as eye color, hair texture, or height, from its parents.
2. How is heredity determined?
Ans. Heredity is determined by genes, which are segments of DNA (deoxyribonucleic acid) that carry genetic information. Genes are inherited from both parents and are responsible for transmitting specific traits to the offspring. The combination of genes from both parents determines the characteristics that will be expressed in the offspring.
3. Can heredity be influenced by the environment?
Ans. Yes, heredity can be influenced by the environment. While genes play a significant role in determining certain traits, environmental factors can also have an impact on how those traits are expressed. For example, a person's height may be influenced by genetic factors, but it can also be affected by nutrition and overall health.
4. Are all traits inherited through heredity?
Ans. Not all traits are inherited through heredity. Some traits, known as acquired traits, are developed or learned throughout an individual's lifetime and are not inherited from parents. Acquired traits can include skills, knowledge, or behaviors that are acquired through experiences or environmental factors.
5. Can heredity be altered or changed?
Ans. While heredity itself cannot be altered or changed, certain genetic traits or conditions can be influenced or modified through various methods. Genetic engineering and gene therapy are examples of techniques that can be used to modify specific traits or treat genetic disorders. However, these methods are still in the experimental stage and are subject to ethical considerations and regulations.
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