Biotin (vitamin B₇) is a coenzyme for carboxylases, e.g., pyruvate carboxylase, acetyl-CoA carboxylase. It is involved in gluconeogenesis and fatty acid synthesis. Deficiency is rare but can occur with raw egg white consumption.
Explanation:
Crossbreeding involves mating individuals of different breeds to combine desirable traits and exploit hybrid vigor (heterosis). Inbreeding is within the same breed, outcrossing is within breed but unrelated, grading up is repeated crossing with a superior breed. Crossbreeding improves productivity in dairy and meat animals.
Explanation:
Mitosis is the equational division that produces genetically identical daughter cells, used for growth, development, and tissue repair. Meiosis produces gametes, binary fission is prokaryotic, fragmentation is asexual reproduction.
Explanation:
Adrenocorticotropic hormone (ACTH) from the anterior pituitary stimulates the adrenal cortex to produce cortisol and androgens. TSH stimulates thyroid, FSH gonads.
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