The specification of the anterior-posterior axis in drosophila embryos is initially controlled by various gene products that are synthesized and stored in the mature egg following oogenesis. mutations in these genes result in abnormalities of the axis during embryogenesis. these mutations illustrate maternal effect. what are the expected outcomes of parallel crosses involiving mutant gnes that contrast maternal effect and organelle heredity?

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answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

the answer is d p: cell, q: organ, r: organ system, s: tissue