🦠microbiology review

Genotype

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

A genotype is the genetic makeup of an organism, encompassing all of its genes. It determines specific characteristics and potential traits that can be expressed.

Course connection

Topic 10.4: 10.4 Structure and Function of Cellular Genomes

Unit 10

5 Must Know Facts For Your Next Test

  1. Genotypes are inherited from both parents and consist of alleles located on chromosomes.
  2. The expression of a genotype results in the phenotype, which is the observable characteristics of an organism.
  3. Mutations in the genotype can lead to variations in the phenotype and can be caused by environmental factors or errors in DNA replication.
  4. Genotype analysis is crucial for understanding hereditary diseases and developing medical treatments.
  5. In microbial genetics, genotyping helps identify microbial strains and understand their resistance to antibiotics.

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