AP Bio Unit 9: Inheritance & Prokaryotic Genomes

Front

What is the gene makeup of an organism for a particular trait called?

Back

Genotype

Front

What is the term for the observable characteristics of an organism?

Back

Phenotype

Front

What is the chromosomal abnormality that causes Down's Syndrome?

Back

Trisomy 21

Front

What type of inheritance is expressed when both alleles contribute to the phenotype in a heterozygous individual?

Back

Co-dominance

Front

What is the term for a genetic cross between two individuals that examines one trait?

Back

Monohybrid cross

Front

What is the expected phenotypic ratio in the offspring of a monohybrid cross?

Back

3:1

Front

What is the expected genotypic ratio in the offspring of a monohybrid cross?

Back

1:2:1

Front

What is the term for an allele that masks the expression of another allele?

Back

Dominant allele

Front

What is the term for an allele that is masked by a dominant allele?

Back

Recessive allele

Front

What is the term for the genetic makeup of an organism?

Back

Genotype