Body size in mice is controlled in part by genetics. The following data show the number of mice grouped by lengths:

Length Group Number of Mice
Very small (4-5 cm) 2
Small (5-7 cm) 6
Average (7-10 cm) 15
Large (10-12 cm) 7
Very large (12-13 cm) 1
A bar graph entitled Mouse Body Size in a Population. The Y axis is labeled Length, centimeters. Two mice are very small, between four and five centimeters. Six mice are small in size, between five and seven centimeters. Fifteen mice are medium in size, between seven and ten centimeters. Seven mice have large bodies, between ten and twelve centimeters. One mouse is very large, between twelve and thirteen centimeters.

Identify the inheritance pattern that this trait follows in mice.

(1 point)
Responses

complete dominance
complete dominance

incomplete dominance
incomplete dominance

polygenic
polygenic

Mendelian

1 answer

The inheritance pattern that this trait follows in mice is polygenic. This is because body size in mice is typically influenced by multiple genes, leading to a range of sizes rather than just a few discrete categories.