Question

1. this passage describes the wing type trait in fruit flies:1) some scientists breed fruit flies to learn how traits are inherited. these scientists often use flies with vestigial wings, which are shorter and stubbier than normal wings. fruit flies with vestigial wings cannot fly, so they are easier for scientists to handle and study.1) in a group of fruit flies, some individuals have normal wings and others have vestigial wings. in this group, the gene for the wing type trait has two alleles. the allele n is for normal wings, and the allele n is for vestigial wings.1) a certain fruit fly from this group has normal wings. this fly has two alleles for normal wings.1) based on this information, click the blue words to correct any errors in the text.1) this fruit flys phenotype for the wing type trait is vestigial wings.this fruit fly is homozygous for the wing type gene.this fruit flys genotype for the wing type gene is nn.

Explanation:

1. The fruit fly has normal wings, so its phenotype (observable trait) must match this, not vestigial wings.
2. The fly has two identical alleles for normal wings (NN), so it is homozygous (two identical alleles for a gene), which is correct.
3. The genotype (genetic makeup) is given as two normal wing alleles, so NN is correct.

Answer:

Corrected text:
This fruit fly's phenotype for the wing type trait is normal wings.
This fruit fly is homozygous for the wing type gene.
This fruit fly's genotype for the wing type gene is NN.