Mendel's Laws of Segregation and Independent Assortment

Allele

• The way an organism looks and behaves

• Different forms of a gene

• Alleles for a trait are the same

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

Refers to one of the two forms of a gene. Ex. “T” or “t”

• Allele

• Genes

• Locus

• Hybrid

• Recessive

The alleles for different traits are sorted separately and don't affect one another.

• Law of Dominance

• Law of Independent Assortment

• Law of Conservation of Matter

• Law of Segregation

Organisms which have 2 different genes (alleles-letters) for a trait. Tt (hybrid)

• Genotype

• Heterozygous

• Homozygous

• Phenotype

• Test cross

  
  

Organisms which have the same 2 genes (alleles – letters) for a trait. TT or tt (purebred)

• Genotype

• Heterozygous

• Homozygous

• Phenotype

• Test cross

Shows the gene combinations present.

Ex. TT, Tt, tt

• Genotype

• Heterozygous

• Homozygous

• Hybrid

• Phenotype

Tags

NGSS.HS-LS3-2

Which is a true statements about this picture?

• Brown is recessive
• Brown is dominant
• Blue is dominant
• Blue is codominant

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

How the genes appear.

Ex. Tall, dwarf, Green, yellow

• Genotype

• Heterozygous

• Homozygous

• Phenotype

• Test cross

Heterozygous

• When two alleles for a trait are different.

• Different forms of a gene.

• Factors that determine traits

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

States that alleles of each gene segregate into gametes independently of alleles of other genes, as shown in a dihybrid cross.

• Law of Complete Dominance

• Law of Independent Assortment

• Law of Segregation

• The rule of addition

• The rule of multiplication

Tags

NGSS.HS-LS3-2