Biology MCQs

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The Hypothalamus, positioned in the brain, is the gland responsible for the release of Neurohormone. Neurohormones are versatile and can perform various functions depending on the body’s needs, this can include releasing or inhibiting different hormones. This overall mechanism is critical to maintaining the body’s internal balance, or homeostasis, and oversees critical bodily functions, such as sleep, hunger, thirst, and body temperature.

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The Leydig cells which are found in the human body are the secretory source of Androgens.

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A connective tissue cord extending between the testis and the abdominal wall is known as the spermatic cord.

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Bovine Viral Diarrhoea, Brucellosis and Foot and Mouth disease are the most common diseases in cows.

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Typhoid is a bacterial infection that is caused by Salmonella typhi. The bacteria attack the gastrointestinal tract, which includes the liver, spleen, and muscles.

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Klenow fragment is derived from DNA Pol-I. A Klenow fragment is a large protein fragment. It is enzymatically cleaved by the protease subtilisin to DNA polymerase from E. coli.

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Bacillus subtilis organism’s plasmid was first used to construct recombinant DNA.

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Protease is an enzyme that cleaves proteins. These enzymes are made by animals, plants, fungi, and bacteria.

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Ethanol is used to obtain a precipitate of pure DNA. Renewable fuel made from corn and other plant materials is called ethanol.

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Skeletal muscle is a form of striated muscle which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by bundles of collagen fibres known as tendons. It is one of three major muscle types, the others being cardiac muscle and smooth muscle.