Genetics vocab

Trait

• A specific characteristic of an individual that results from production of certain proteins (ex: Eye color)

• Specific segment of DNA that codes for protein

• One of different forms or versions of gene (ex: blue eyes, brown eyes, hazel eyes)

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Gene

• Specific character of an individual that results from production of certain proteins (ex: eye color)

• specific segment of DNA that codes for proteins

• One of different forms or versions of a gene (ex: blue eyes, brown eyes, hazel eyes)

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Allele

• Specific character of an individual that results from production of certain proteins (ex: eye color)

• specific segment of DNA that codes for protein

• one of different forms or versions of gene (ex: brown eyes, blue eyes, hazel eyes)

Genotype

• Genes or DNA that codes for an organisms trait

  EX: BB, Bb, bb

• Physical observable traits of an organisms

  EX: eye color or nose shape

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Phenotype

• Genes or DNA that codes for an organisms trait

  EX: BB, Bb, bb

• Physical observable traits of an organism

  EX: eye color, nose shape

Tags

NGSS.HS-LS3-1

Recessive

• weaker form of trait; lowercase letter; only expressed if both alleles are recessive

• stronger form of trait; capital letter; always expressed

• both alleles are the same

  EX: AA, ee, FF, mm

• one allele is dominant, one is recessive

  EX: Hh, Ff, Mm

Dominant

• weaker form of trait; lowercase letter; only expressed if both alleles are recessive

• stronger form of trait; capital letter; always expressed

• both alleles are the same

  EX: AA, ee, FF, mm

• one allele is dominant, one is recessive

  EX: Hh, Ff, Mm

Homozygous

• weaker form of trait; lowercase letter; only expressed if both alleles are recessive

• stronger form of trait; capital letter; always expressed

• both alleles are the same

  EX: AA, ee, FF, mm

• one allele is dominant, one is recessive

  EX: Hh, Ff, Mm

Heterozygous

• weaker form of trait; lowercase letter; only expressed if both alleles are recessive

• stronger form of trait; capital letter; always expressed

• both alleles are the same

  EX: AA, ee, FF, mm

• one allele is dominant, one is recessive

  EX: Hh, Ff, Mm

Tags

NGSS.HS-LS3-2

hh is homozygous recessive

• True

• False

Tags

NGSS.HS-LS3-2