7th Grade Genetics and Heredity

Front

What is Natural Selection?

Back

Natural Selection is the process where better adapted organisms survive and pass their traits to offspring.

Front

How do sexual and asexual reproduction compare?

Back

Both sexual and asexual reproduction pass on genetic information from parent to offspring.

Front

Which type of reproduction leads to greater variation in offspring?

Back

Sexual reproduction leads to the greatest amount of variation from parent to offspring.

Front

What happens to dark moths in a soot-covered environment?

Back

Dark moths will be more successful in a soot-covered environment because they are better camouflaged.

Front

Why might dark mice survive better in a dark grassy field?

Back

Dark mice survive better because hawks can see white mice more easily.

Front

What is the definition of heredity?

Back

Heredity is the passing of traits from parents to offspring through genes.

Front

What is a gene?

Back

A gene is a segment of DNA that contains instructions for the development of a specific trait.

Front

What is the difference between dominant and recessive traits?

Back

Dominant traits are expressed when at least one dominant allele is present, while recessive traits are expressed only when two recessive alleles are present.

Front

What is an allele?

Back

An allele is a variant form of a gene that can result in different traits.

Front

What is the role of mutations in evolution?

Back

Mutations introduce new genetic variations, which can lead to new traits that may be beneficial for survival.