This passage describes the fleece type trait in sheep:

The fleece, or outer coat, of a sheep is often cut off and used to make yarn for fabrics and other textiles. Woolly fleeces, which have shorter hairs, are usually used for clothing and blankets. Hairy fleeces, which have longer hairs, are usually used for carpets.
In a group of sheep, some individuals have a hairy fleece and others have a woolly fleece. In this group, the gene for the fleece type trait has two alleles. The allele F is for a hairy fleece, and the allele f is for a woolly fleece.
Fireball, a sheep from this group, has a woolly fleece. Fireball has two alleles for a woolly fleece.
Based on this information, click the blue words to correct any errors in the text.

The fleece, or outer coat, of a sheep is often sheared off and used to make yarn for fabrics and other textiles. Woolly fleeces, which have shorter fibers, are typically used for clothing and blankets. Hairy fleeces, which have longer fibers, are usually used for carpets.

In a group of sheep, some individuals have a hairy fleece and others have a woolly fleece. In this group, the gene for the fleece type trait has two alleles. The allele F is for a hairy fleece, and the allele f is for a woolly fleece.
Fireball, a sheep from this group, has a woolly fleece. Fireball has two alleles for a woolly fleece.