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BiologyGenetics

An Organism That Has Two Different Alleles for a Trait: Genetics Vocabulary Match

An organism with two different alleles at a locus is heterozygous. The full matching key also separates genotype, phenotype, homozygous, codominance, probability, and Punnett square.

Question

Match each term to its definition.

Terms

  1. heterozygous
  2. Punnett square
  3. genotype
  4. codominance
  5. probability
  6. homozygous
  7. phenotype

Definitions

(a) a chart that shows all the possible combinations of alleles that can result from a genetic cross

(b) a number that describes how likely it is that an event will occur

(c) an organism that has two identical alleles for a trait

(d) an organism's physical appearance, or visible traits

(e) an organism's genetic makeup, or allele combinations

(f) an organism that has two different alleles for a trait

(g) an inheritance pattern in which the alleles are neither dominant nor recessive

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Evidence boundary

This page answers the seven-item Pearson matching exercise using introductory diploid, single-locus terminology. Heterozygous describes two different alleles at a locus; it does not by itself establish a dominant phenotype or carrier status. Carrier is a context-dependent label tied to a particular disease or trait and inheritance pattern.