Which statement about endosymbiosis in aphids is correct?

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Multiple Choice

Which statement about endosymbiosis in aphids is correct?

Explanation:
Endosymbiosis with Buchnera in aphids is vertically transmitted. The bacterial partner, housed in specialized cells called bacteriocytes, provides essential amino acids missing from the aphid’s phloem sap. This symbiont is passed from mother to offspring through the eggs during oogenesis, so every generation inherit the same bacteria. It is not acquired from the environment or soil, which is why vertical transmission best explains this relationship.

Endosymbiosis with Buchnera in aphids is vertically transmitted. The bacterial partner, housed in specialized cells called bacteriocytes, provides essential amino acids missing from the aphid’s phloem sap. This symbiont is passed from mother to offspring through the eggs during oogenesis, so every generation inherit the same bacteria. It is not acquired from the environment or soil, which is why vertical transmission best explains this relationship.

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