Question

Regarding albinism, what is the primary effect on melanin production in individuals with albinism?

a. Excessive melanin production
b. Normal melanin production
c. Reduced melanin production
d. Absence of melanin

If a baby is born to a mother with albinism and a father without albinism, what determines the baby's skin color?
a. The mother's gene for dark skin
b. The father's gene for dark skin
c. Both parents' genes for albinism
d. The father's skin color gene and the presence of albinism genes

Why is albinism considered a recessive trait?
a. It is only expressed in the presence of specific environmental factors
b. It is masked by stronger traits in heterozygous individuals
c. It is always expressed regardless of other genetic factors
d. It exhibits codominance with other pigmentation traits

Answer 1

The primary effect of albinism is the absence of melanin production, and offspring's skin color is determined by both parental genes with dominance playing a key role. Albinism is a recessive trait because it is masked by the presence of a dominant normal melanin-producing allele in heterozygous individuals.

Step-by-step explanation:

The primary effect on melanin production in individuals with albinism is d. the absence of melanin. This occurs because the melanocytes in individuals with albinism are unable to produce melanin due to a genetic mutation.When a baby is born to a mother with albinism and a father without albinism, the baby's skin color is determined by d. the father's skin color gene and the presence of albinism genes. This is because albinism is a recessive trait, and if the baby inherits the albinism gene from the mother and a normal pigment gene from the father, the normal pigment gene can mask the effects of the albinism gene, depending on its dominance and the father's genotype. Albinism is considered a recessive trait because b. It is masked by stronger traits in heterozygous individuals. This means that when an individual has one allele for normal melanin production and one allele for albinism, the normal allele is dominant and the effects of the albinism allele are not visible. Albinism is a genetic disorder that affects the production of melanin, the pigment responsible for skin, hair, and eye color.

The primary effect on melanin production in individuals with albinism is reduced melanin production. This results in individuals with albinism having little to no pigment in their skin, hair, and eyes. If a baby is born to a mother with albinism and a father without albinism, the baby's skin color would be determined by the father's skin color gene and the presence of albinism genes. The father's genes for normal pigmentation could influence the baby's skin color, but the presence of albinism genes would still impact the production of melanin. Albinism is considered a recessive trait because it is masked by stronger traits in heterozygous individuals. In order for an individual to exhibit the albino phenotype, they must inherit two copies of the gene that causes albinism, one from each parent.