Biology MCQs

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In peaches, cherries, plums, and apricots, the edible parts are the mesocarp, which refers to the fleshy part of the fruit that surrounds the endocarp. The endocarp, also known as the stone or pit, is the hard, woody layer that encases the seed of the fruit. While the endocarp is not typically edible, the mesocarp is the part of the fruit that is commonly consumed as food.

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Asthama is not a sex linked character whereas colorblindness and baldness are sex linked. Colour blindness usually involves the inability to distinguish between shades of the colours red and green.

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Director of the Centre for Cellular and Molecular Biology (CCMB) since 1998, Singh is best known for developing a unique way of DNA fingerprinting that has been accepted by Indian courts as valid in forensic evidence, paternity determination and seed stock verification. This technique was used during the probe into the Rajiv Gandhi murder case. This new technique prompted the government to set up the Centre for DNA Fingerprinting and Diagnostics for further exploration in the field.

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Apart from the temporal bone, femur is considered as strongest bone in human body. It is the only bone located within the human thigh. It is both the longest and the strongest bone in the human body. It extends from the hip to the knee.

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A halophyte is a salt-tolerant plant that grows in soil or waters of high salinity. They consists of pneumatophores which are negatively geotropic roots which grow upward & meant for gaseous exchange.

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Cells of the epidermis produce root hairs near the root apex. These cells are generally thin-walled, in contrast to the cells of the cortex, lying below the surface, which ultimately may become very thick-walled. The root hairs have fundamental importance in absorption of water and nutrients.

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Entomology is the scientific study of insects, a branch of zoology. In the past the term “insect” was more vague, and historically the definition of entomology included the study of terrestrial animals in other arthropod groups or other phyla, such as arachnids, myriapods, earthworms, land snails, and slugs.

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Liver is both the heaviest internal organ and the largest gland in the human body. Located in the right upper quadrant of the abdominal cavity, it rests just below the diaphragm, to the right of the stomach and overlies the gallbladder.

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In Mitochondria, pyruvic acid is broken down into carbon dioxide, water and energy.

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Protoxylem is the first part of the primary xylem that matures and these cells are usually smaller than the metaxylem. Metaxylem is the part of the primary xylem that differentiates after the protoxylem and these cells are usually larger than the protoxylem.