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Mendel's Experiments with Pea Plants Video Lecture - Class 12
FAQs on Mendel's Experiments with Pea Plants Video Lecture - Class 12
| 1. What were Mendel's experiments with pea plants? |  |
Ans. Mendel's experiments with pea plants were a series of controlled breeding experiments that he conducted in the mid-19th century. He crossbred pea plants with contrasting traits, such as tall and short height, yellow and green seed color, etc., to study the inheritance patterns of these traits in the offspring.
| 2. What were the key findings of Mendel's experiments with pea plants? | |
Ans. Mendel's experiments with pea plants led to several key findings. He observed that traits are inherited in discrete units called genes, and these genes come in pairs. He also discovered the principle of dominance, where one gene in a pair can mask the expression of the other. Additionally, he formulated the laws of segregation and independent assortment, which explain how genes are passed on from one generation to the next.
| 3. How did Mendel ensure controlled breeding in his experiments with pea plants? | |
Ans. Mendel ensured controlled breeding in his experiments by manually cross-pollinating the pea plants. He removed the male reproductive organs (stamens) from the flowers of one plant to prevent self-fertilization. Then, he transferred pollen from the flowers of another plant onto the stigma of the emasculated plant to achieve controlled cross-pollination and study the inheritance of specific traits.
| 4. Why did Mendel choose pea plants for his experiments? | |
Ans. Mendel chose pea plants for his experiments because they have several advantageous characteristics for genetic studies. Pea plants are self-fertilizing, meaning they can reproduce by self-pollination. This allowed Mendel to ensure the purity of the parental lines. Additionally, pea plants have easily distinguishable traits with clear-cut variations, making it easier to track and analyze inheritance patterns.
| 5. How did Mendel's experiments with pea plants contribute to our understanding of genetics? | |
Ans. Mendel's experiments with pea plants laid the foundation for the modern science of genetics. His findings established the principles of inheritance, such as the concept of genes, dominance, segregation, and independent assortment. These principles formed the basis for the understanding of genetic inheritance in all organisms. Mendel's work revolutionized our understanding of how traits are passed on from one generation to the next and paved the way for future advancements in genetics.
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Dec 26, 2024 Last updated |
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