Topic 9: Inheritance, punnet squares, Pedigrees

A chart that can help trace the phenotypes and genotypes in a family by using logic, like a puzzle. It uses circles and squares.

• karyotype

• pedigree

• gel electrophoresis

• crossing over

Characteristics that are inherited

• traits

• alleles

• genes

• purebred

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Genes on sex-chromosomes, usually the X chromosome.

• genome

• genetic linkage

• genotype

• sex-linked genes

The study of biological inheritance patterns and variations in organisms

• genes

• alleles

• genetics

• genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Someone who does not have a disorder but carries the recessive allele. They can potentially pass the allele on to offspring.

• carrier

• mother

• genetic linkage

• father

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The matting of two organisms in genetics

• cross

• mating

• punnett square

• traits

Genes located close together on a chromosome tend to be inherited together

• crossing over

• genetic linkage

• genes

• homologous chromosomes

To be genetically uniform

• genome

• heterozygous

• homologous

• purebred

The exchange of chromosome pieces between homologous chromosomes. It occurs during meiosis and contributes to genetic variation.

• monohybrid cross

• genetic linkage

• crossing over

• cross

Mendel's law that states that organisms inherit two copies of each gene, one from each parent. Two copies of a gene segregate-only one copy goes into an organism's gametes during gametogenesis.

• Law of independent assortment

• Law of segregation

• Law of genetics

• Law of Mendel