Biology-Genetics

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Uses letters to represnt

Genotype

Uses physical traits as seen

Phenotype

Two different genotype letters

Heterozygous

Two of the same genotypes letters

Homozygous

question

Pure breed

question

Hybrid

A non sex chromosome

Autosome

one of the pair of chromosomes that determine sex of an individual

Sex Chromosomes

Is a trait discribed only when homozygous

Recessive

covers up the recessive

Dominant

one of a pair of genes that end to be inherited together

Linked genes

a trait that is determined by a gene found on one of the sex chromosome such as y or x

Sex Linked

question

Non-disjunction

more than two alleles for a genetic trait

Multiple alleles

the crossing of an individual of unknown genotype with a homozygous recessive individual to determine the unknown genotype

Test cross

question

Hybrid cross

a cross between individuals that have different alleles for the same gene

Dihybrid cross

autosomal recessive

Sickle Cell Anemia

Autosomal dominant

Huntington

Chromosome 21

Down Syndrome

X-Linked Recessive

Hemophilia

Defective X

Red-Green Colorblindness