Question

Which one of the following is false? A) The genetic makeup of an organism constitutes its genotype. B) An organism with two different alleles for a single trait is said to be heterozygous. C) Alleles are alternate forms of a gene. D) An allele that is fully expressed is referred to as recessive. E) The expressed physical traits of an organism are called its phenotype.

Answer 1

An organism's genotype refers to its genetic makeup, consisting of different alleles. Alleles are alternate forms of a gene. An allele that is fully expressed is dominant and determines the organism's phenotype.

Step-by-step explanation:

An organism's genotype refers to its genetic makeup, which consists of the combination of alleles it carries. Alleles are alternate forms of a gene. An organism with two different alleles for a single trait is called heterozygous. If an allele is fully expressed and determines the phenotype of the organism, it is referred to as dominant, not recessive.

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