im studying for a biology test that's tommorow. Can somebody help me? i cant find the answer to this anywhere.
An Example of a Dominant Trait?
a-cystic fibrosis
b-white pea flowers
c-purple pea flowers
d-sickle-cell anemia
purple is dominant since when you do the punnett square it's P (capital)
Of the options given, the example of a dominant trait is b) white pea flowers.
To understand why this is the correct answer, it's important to have a basic understanding of genetics. Traits are characteristics that are passed down from parent to offspring through genes. Each gene has two copies, known as alleles, which can be either dominant or recessive.
In the case of pea flowers, there are two possible alleles for the flower color gene: one for purple flowers (dominant allele) and one for white flowers (recessive allele). If an individual has at least one copy of the dominant allele for purple flowers, they will have purple flowers. However, if an individual has two copies of the recessive allele for white flowers, they will have white flowers.
In this scenario, white pea flowers are an example of a dominant trait because even if an individual has one copy of the dominant purple allele and one copy of the recessive white allele, the purple allele will mask the presence of the white allele, resulting in purple flowers. Only individuals with two copies of the recessive white allele will exhibit the recessive trait of white flowers.
Knowing this, you can conclude that white pea flowers are an example of a dominant trait in genetics.