Melanin Storyline Review

Front

What is melanin?

Back

Melanin is a natural pigment found in the skin, hair, and eyes of humans and animals, responsible for color and protection against UV radiation.

Front

What role does melanin play in the survival of organisms?

Back

Melanin helps organisms adapt to their environment by providing camouflage, which can protect them from predators.

Front

What is the relationship between melanin and natural selection?

Back

Natural selection can favor organisms with advantageous traits, such as melanin levels that enhance survival in specific environments.

Front

Define genotype.

Back

Genotype refers to the genetic makeup of an organism, representing the alleles inherited from its parents.

Front

Define phenotype.

Back

Phenotype is the observable physical characteristics of an organism, influenced by its genotype and environment.

Front

What is a heterozygous genotype?

Back

A heterozygous genotype contains two different alleles for a specific gene, such as Rr.

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a specific gene, such as RR or rr.

Front

What is the significance of dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in a heterozygous genotype, determining the phenotype.

Front

What is the function of DNA?

Back

DNA holds the genetic code for making proteins, which are essential for the structure and function of cells.

Front

How do environmental factors influence phenotype?

Back

Environmental factors, such as temperature and nutrition, can affect the expression of genes, leading to variations in phenotype.