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P-2 Heredity and Evolution — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-2 Heredity and Evolution3 Marks
Question
Define heredity. Explain the mechanism of hereditary changes.
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Answer

Definition: Heredity is the transfer of biological characters from one generation to another via genes.
Mechanism of Changes: Hereditary changes occur due to various reasons, primarily Mutations. Any sudden change in the nucleotide sequence of a gene can lead to a minor or major change in the characters of the organism.
Inheritance: These changes are passed down to the offspring through gametes. During sexual reproduction, the crossing over of chromosomes also leads to new combinations of genes, resulting in variations.

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