The phenomenon where a single gene influences multiple, seemingly unrelated phenotypic traits is known as: MCQ with Answer and Explanation

Explanation:
Phototropism is the directional growth of a plant organ in response to light, typically positive in shoots. Geotropism (gravitropism) is the growth response to gravity, with roots showing positive geotropism (growing down) and shoots negative geotropism (growing up). Thigmotropism is the growth response to touch or physical contact, seen in climbing plants like vines, not water (which is hydrotropism). Thus, statements 1 and 2 are correct.

Explanation:
Motor (efferent) and sensory (afferent) neurons are correctly described. Interneurons are found in the CNS, not PNS. So 3 is incorrect.

Explanation:
The axon is a long process that transmits action potentials from the soma to the target cell (neuron, muscle, or gland). Dendrites receive signals, soma is the cell body, synaptic terminals release neurotransmitters.