Asexual reproduction involves the creation of offspring without the fusion of gametes. It produces genetically identical or nearly identical copies of the parent organism, commonly observed in bacteria, plants, and some animals.
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Carbon compounds, also known as organic compounds, are molecules containing carbon-hydrogen bonds. They form the basis of life and include diverse substances like carbohydrates, proteins, lipids, and nucleic acids.
Gregor Mendel’s cross-breeding experiments with pea plants in the 19th century laid the foundation for modern genetics. His laws of inheritance revealed patterns of genetic transmission, contributing significantly to the understanding of heredity.
Exposure of certain metals to sunlight may lead to photochemical reactions, causing oxidation or corrosion. Ultraviolet (UV) radiation can accelerate these processes, affecting the appearance and properties of the metal.
Exposed iron reacts with oxygen and moisture in the environment, forming iron oxide, commonly known as rust. This corrosion weakens the metal, leading to degradation and loss of structural integrity.
A helical coil is a structure formed by winding a flexible material, like a tube or wire, into a spiral shape. It is commonly used in heat exchangers and other fluid systems.
Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight into energy, producing glucose and oxygen from carbon dioxide and water in chloroplasts.
DDT (dichlorodiphenyltrichloroethane) is a synthetic pesticide once widely used to control insect-borne diseases like malaria. Its environmental persistence and harmful effects led to bans in many countries.
Chromosomes are thread-like structures in cells containing DNA. They carry genetic information, determining an organism’s traits. Humans have 23 pairs, with one set inherited from each parent.
Male gamete (sperm) is small, mobile, and contributes genetic material. Female gamete (egg) is larger, non-motile, and provides nutrients. Fusion during fertilization forms a zygote, initiating development.