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Sperm from the same father will always carry the same set of chromosomes.
Neurosecretory Cells
Specialized neurons that produce and release hormones into the blood or surrounding tissue, bridging the nervous and endocrine systems.
Pituitary Dwarfism
A condition resulting from insufficient growth hormone production by the pituitary gland, leading to shorter than average height.
Growth Hormone
A hormone that stimulates growth, cell reproduction, and cell regeneration in humans and other animals.
Melatonin
Pineal gland hormone that regulates sleep–wake cycles and seasonal changes; secreted only in the dark.
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