Question

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.
petunia is a sheep from this group. petunias phenotype for the fleece type trait is a woolly
fleece. petunias genotype for the fleece type gene is ff.
based on this information, complete the following statement.
petunia is ______ for the fleece type gene.
homozygous
heterozygous
submit

Explanation:

The problem involves genetics concepts. In genetics, if an organism has two different alleles for a gene, it is heterozygous. If it has two of the same alleles, it is homozygous. Since Petunia has a woolly fleece phenotype and the allele for woolly fleece is \( f \), and the allele for hairy fleece is \( F \), and Petunia's genotype for the fleece - type gene is \( ff \). When an organism has two identical alleles (\( ff \) in this case), it is homozygous for that gene.

Answer:

homozygous