Variations occur due to mutations, recombination during meiosis, independent assortment of chromosomes, and the random fusion of gametes during fertilization. These processes introduce differences in the genetic material passed from parents to offspring.
How do variations occur during reproduction?admin2024-10-18T02:10:34+05:30
Mendel discovered the basic principles of heredity, including the Law of Dominance, the Law of Segregation, and the Law of Independent Assortment, by experimenting with pea plants.
What did Mendel discover about heredity?admin2024-10-17T18:42:06+05:30
The sex of a child is determined by the sex chromosomes. The mother always provides an X chromosome, while the father provides either an X (resulting in a female) or a Y (resulting in a male).
How is the sex of a child determined?admin2024-10-17T18:41:45+05:30
Pollination is the process of transferring pollen from the male reproductive part of the flower (anther) to the female reproductive part (stigma). It is necessary for fertilization and the formation of seeds in flowering plants.
What is the role of pollination in plant reproduction?admin2024-10-17T11:47:47+05:30
Genetic variation increases the ability of a population to adapt to changing environments. It ensures that some individuals have traits that may be beneficial for survival in new or challenging conditions.
Why is genetic variation important in sexual reproduction?admin2024-10-17T11:47:23+05:30
Meiosis is the process that produces gametes with half the number of chromosomes. It introduces genetic variation through crossing over and independent assortment of chromosomes.
What is the role of meiosis in sexual reproduction?admin2024-10-17T11:47:02+05:30
Sexual reproduction involves the fusion of gametes from two parents, leading to genetic variation. Asexual reproduction involves only one parent and produces genetically identical offspring.
How is sexual reproduction different from asexual reproduction?admin2024-10-17T11:46:12+05:30
Conjugation is a form of sexual reproduction that allows single-celled organisms to exchange genetic material, increasing genetic variation and enhancing their ability to adapt to environmental changes.
What is the significance of conjugation in single-celled organisms?admin2024-10-15T05:46:07+05:30
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