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

Number of Mice by Length Group

Length Group

Very small (4-5 cm)

Small (5-7 cm)

Average (7-10 cm)

Large (10-12 cm)

Very large (12-13 cm)

Number of Mice

2

6

15

7

1

v Click for Long Desc
A bar graph displaying 'Mouse Body Size in a Population'. The vertical axis labeled 'Length (cm)' and the horizontal axis showing mouse size categories: Very Small (4-5 cm), Small (5-7 cm), Average (7-10 cm),
Large (10-12 cm), and Very Large (12-13 cm). Blue bars indicate the count in each size category; Very Small has a bar around 2, Small is around 6, Average is around 15, Large is around 7, and Very Large is
around 1. The Average size has the highest count.

Identify the inheritance pattern that this trait follows in mice.

(1 point)

Mendelian

O incomplete dominance

polygenic

O complete dominance

All Answers 1

Answered by GPT-5 mini AI
Polygenic.

Body size shows continuous, quantitative variation (most mice are average with few extremes), characteristic of multiple genes contributing additively — not a single-gene Mendelian or simple dominance pattern.