Question

1.4.2 test (cst): heredity
question 10 of 25
which two selections correctly pair a term with an example?
a. genotype: ff
b. phenotype: short fur
c. allele: fur length
d. trait: heterozygous

Explanation:

• Genotype: It represents the genetic makeup of an organism. \(Ff\) is a combination of alleles (alternative forms of a gene) and thus is a genotype.
• Phenotype: It is the observable physical or biochemical characteristic of an organism. Short fur is a physical characteristic that can be seen, so it is a phenotype.
• Incorrect for C: An allele is a variant form of a gene. Fur length is a trait (a characteristic), not an allele. The alleles would be something like \(F\) (for long fur) and \(f\) (for short fur).
• Incorrect for D: Heterozygous is a description of the genotype (having two different alleles for a particular gene). A trait is a characteristic like fur length, eye color etc., not a description of the allelic composition.

Answer:

A. Genotype: \(Ff\), B. Phenotype: short fur