BIO EOC REVIEW DAY 10

Front

What is incomplete dominance in genetics?

Back

Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a phenotype that is a blending of the two traits.

Front

What is the expected phenotype ratio of offspring from a cross of two heterozygous snapdragons (RR x rr)?

Back

The expected phenotype ratio is 1 red: 2 pink: 1 white, meaning 50% of the offspring will be pink.

Front

What is a genotype?

Back

A genotype is the genetic constitution of an individual, specifically the alleles present for a particular gene.

Front

What does it mean for a trait to be autosomal dominant?

Back

An autosomal dominant trait is one that is expressed in individuals who have at least one dominant allele for that trait.

Front

What is the significance of natural predators in an ecosystem?

Back

Natural predators help control the population of prey species, maintaining balance in the ecosystem.

Front

What is the impact of overfishing on fish populations?

Back

Overfishing leads to a decline in fish populations, as they are caught faster than they can reproduce.

Front

What is a pedigree chart used for in genetics?

Back

A pedigree chart is used to track the inheritance of traits through generations in a family.

Front

What is the difference between a dominant and a recessive allele?

Back

A dominant allele is expressed in the phenotype even when only one copy is present, while a recessive allele is only expressed when two copies are present.

Front

What is the role of competition in an ecosystem?

Back

Competition occurs when organisms vie for the same resources, which can affect population dynamics and ecosystem stability.

Front

What does it mean for a species to be non-native?

Back

A non-native species is one that is introduced to an ecosystem where it does not naturally occur, potentially disrupting local ecosystems.