A mutation of a segmentation gene can result in Check All That Apply the duplication of body parts.the duplication of body parts. missing body regions.missing body regions. the incorrect establishment of body axes.the incorrect establishment of body axes. the replacement of one body part with another.the replacement of one body part with another. the altered expression of homeotic genes.
Added by Julie C.
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Segmentation genes are crucial in the early development of an organism, particularly in establishing the segmented body plan of many animals, including insects. They help define the boundaries and identity of segments. Show more…
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Rabeya Z.
A gap gene mutation might cause which of the following defects in the embryonic body plan? Group of answer choices every other segment would be missing, resulting in T1, T3, A2, A4, etc. but no T2, A1, A3, and so on segments A2 through A6 would be missing, but the rest of the pattern is essentially normal no segmentation would be evident None of the options
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In the process of body segmentation in Drosophila larvae, $a$. the first steps are specified by homeotic genes. b. mutations in pair rule genes result in embryos missing every other segment. $c .$ mutations in gap genes result in the insertion of extra segments. $d .$ segment polarity genes determine the dorsal-ventral axes of segments. $e .$ segmentation is the same as in earthworms.
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