In an Animal Bearing the Heterozygous Inversion ABCDE[*]FGHI / ABGF[*]EDCHI,in

question 19

Multiple Choice

In an animal bearing the heterozygous inversion ABCDE[*]FGHI / ABGF[*]EDCHI,in one meiocyte a crossover occurred between the D and E loci and another crossover occurred between the F and G loci.The two crossovers involved all four chromatids.What will be the proportion of abnormal meiotic products from that meiosis? (Note: [*] = centromere.)

• A)0%
• B)25%
• C)50%
• D)100%
• E)It depends on the distance between D and E and between F and G.

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Definitions:

Seasons

Periodic changes in the environment and weather patterns, often delineated by significant variations in temperature, precipitation, and day length, influencing ecosystems and human activities.

Temperate Grasslands

Ecosystems characterized by moderate temperatures and precipitation, hosting vast expanses of grasses and few trees.

Topsoil

The uppermost layer of soil that is rich in organic matter and nutrients, used extensively for cultivation and planting.

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water, releasing oxygen as a byproduct.