Examlex
A homeotic gene codes for a(n) ________ protein, a sequence of 60 amino acids, sets of which determine the genes to be turned on during development.
Phototropism
Directional response to light.
Auxin
Plant hormone that causes cell enlargement; also has a central role in growth and development by coordinating the effects of other hormones.
Hormone
Chemical messengers produced by glands in the body, transported in the bloodstream to target organs or tissues, influencing various physiological processes.
Endosperm
The endosperm is a tissue produced inside the seeds of most flowering plants following fertilization, providing nutrition to the developing embryo.
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