Question

A wild-type fruit fly:_________.
a) exhibits a mutant phenotype.
b) will most likely have white eyes.
c) exhibits a phenotype that marks it as a party animal.
d) exhibits the most common phenotype in the population.
e) expresses a large proportion of homozygous recessive alleles.

Answer 1

Answer:

A. Exhibits a mutant phenotype.

Explanation:

A friut fly is called a wild-type fly and they exhibits a phenotypic mutation which is called a "mutant". Mutant flies are given names that generally indicates the type of mutation the fly exhibits.

Each mutation has specific letter code. Thus, in the case of ebony, the code is a lower case e. The wild type fly is denoted by a superscript + over the mutant letter code.

Wild-type flies also have sex chromosomes and they contain a subset of genes as well. If the gene is located on a sex chromosome, we use a slightly different notation. Under normal diploid conditions a female fruit fly has two X chromosomes, a male has an X and a Y chromosome.