Unit 5 Check 2: Non-Mendelian Genetics

Front

What is Non-Mendelian Genetics?

Back

Non-Mendelian Genetics refers to patterns of inheritance that do not follow Mendel's laws of inheritance, including incomplete dominance, co-dominance, and multiple alleles.

Front

What is Incomplete Dominance?

Back

Incomplete Dominance is a type of inheritance where the phenotype of heterozygotes is intermediate between the phenotypes of the two homozygotes.

Front

What is Co-Dominance?

Back

Co-Dominance is a form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits.

Front

What is the phenotype of a snapdragon flower with genotype RW?

Back

The phenotype of a snapdragon flower with genotype RW is pink, due to incomplete dominance between the red (RR) and white (WW) alleles.

Front

What percentage of female offspring will be carriers for a recessive disease if one parent is a carrier and the other is affected?

Back

50% of the female offspring will be carriers for the recessive disease.

Front

What does it mean if an organism has two X chromosomes?

Back

If an organism has two X chromosomes, it is typically female.

Front

What is the difference between Mendelian and Non-Mendelian inheritance?

Back

Mendelian inheritance follows specific patterns (dominant and recessive traits), while Non-Mendelian inheritance includes patterns like incomplete dominance and co-dominance.

Front

Give an example of a trait that exhibits co-dominance.

Back

An example of co-dominance is the AB blood type in humans, where both A and B alleles are expressed.

Front

What is a carrier in genetics?

Back

A carrier is an individual who has one copy of a recessive allele that does not manifest as a phenotype but can be passed to offspring.

Front

What is the significance of the Punnett square in genetics?

Back

The Punnett square is a tool used to predict the genotypes and phenotypes of offspring from a genetic cross.