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Genetics

What are Genetics?

 

 
allele - a form of a gene
allele - a form of a gene
Chromosome - a thread like strand of DNA and proteins inside the nucleus of eukaryotic cells
Chromosome - a thread like strand of DNA and proteins inside the nucleus of eukaryotic cells
DNA - chemicals inside the nucleus of a cell that carries the genetic instructions for making living organisms
DNA - chemicals inside the nucleus of a cell that carries the genetic instructions for making living organisms
Dominant Trait - a trait that will show up in the offspring if it is present
Dominant Trait - a trait that will show up in the offspring if it is present
Gene - segments of DNA that control the way an organism looks and behaves
Gene - segments of DNA that control the way an organism looks and behaves
Genotype - actual genetic makeup of an organism
Genotype - actual genetic makeup of an organism
Phenotype - the physical characteristics of an organism
Phenotype - the physical characteristics of an organism
Punnett Square - grid used for predicting genetic outcomes
Punnett Square - grid used for predicting genetic outcomes
Recessive Trait - will only show in offspring if the dominant trait is absent
Recessive Trait - will only show in offspring if the dominant trait is absent
Trait - a quality or characteristic that makes one organism different from another
Trait - a quality or characteristic that makes one organism different from another
Asexual Reproduction - reproduction involving only one parent that produces offspring identical to the parent
Asexual Reproduction - reproduction involving only one parent that produces offspring identical to the parent
Sexual Reproduction - reproduction involving two parents that produces offspring with genetic material from both parents
Sexual Reproduction - reproduction involving two parents that produces offspring with genetic material from both parents

Vocabulary Practice Websites:

Quizlet

Studystack

Tutorials

StudyJam: Heredity

Genetics Games

Genotype vs. Phenotype

Genotype Phenotype
  • the entire genetic makeup of an organism
  • shown by using letters to represent the alleles from each parent    (BB, Bb, bb)
  • Capital letter – dominant trait – will always show if present
  • Lowercase letter – recessive – will only show if two of them
  • If the alleles are the same (BB or bb) the organism is homozygous for the trait
  • If the alleles are different (Bb) the organism is heterozygous for the trait
  •  
  • Physical characteristics or observable traits
  • Is determined by an organisms genotype
  • Image result for phenotype vs genotype