BIO 100 UNIT 3 2026 EXAM QUESTIONS WITH ACCURATE
ANSWERS.
Punnett Square
Visual representation developed by Reginald Punnett that is used to
calculate the expected results of simple genetic crosses.
Law of independent assortment
Each pair of factors separates
independently (without regard to how the others separate).
All possible combinations of factors can occur in the gametes.
incomplete dominance
Inheritance pattern in which an offspring has an intermediate
phenotype, as when a red-flowered plant and a white-flowered plant
produce pink-flowered offspring.
Codominance
Inheritance pattern in which both alleles of a gene are equally
expressed in a heterozygote.
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, multiple allele inheritance
Inheritance pattern in which there are more than two alleles for a
particular trait; each
individual has only two of all possible alleles. blood type
polygenic inheritance
Pattern of inheritance in which a trait is controlled by several allelic
pairs.
skin color
amino acid
Organic molecule composed of an amino group and an acid group;
covalently bonds to produce peptide molecules.
What are alleles?
Alternative form of a gene; alleles occur at the same locus on
homologous chromosomes.
What is a phenotype?
Visible expression of a genotype e.g. brown eyes or attached earlobes.
What is a genotype?
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ANSWERS.
Punnett Square
Visual representation developed by Reginald Punnett that is used to
calculate the expected results of simple genetic crosses.
Law of independent assortment
Each pair of factors separates
independently (without regard to how the others separate).
All possible combinations of factors can occur in the gametes.
incomplete dominance
Inheritance pattern in which an offspring has an intermediate
phenotype, as when a red-flowered plant and a white-flowered plant
produce pink-flowered offspring.
Codominance
Inheritance pattern in which both alleles of a gene are equally
expressed in a heterozygote.
Page | 1
, multiple allele inheritance
Inheritance pattern in which there are more than two alleles for a
particular trait; each
individual has only two of all possible alleles. blood type
polygenic inheritance
Pattern of inheritance in which a trait is controlled by several allelic
pairs.
skin color
amino acid
Organic molecule composed of an amino group and an acid group;
covalently bonds to produce peptide molecules.
What are alleles?
Alternative form of a gene; alleles occur at the same locus on
homologous chromosomes.
What is a phenotype?
Visible expression of a genotype e.g. brown eyes or attached earlobes.
What is a genotype?
Page | 2
