Dominant and recessive genes

How many is the chance of a child with free earlobes?

• 50%

• 100%

• 25%

• 80%

Domimant genes are expressed only when the dominant is not present.

• Verdadero

• Falso

How many is the chance of a child with attached earlobes?

• 60%

• 80%

• 50%

• 30%

Recessive genes are expressed only when the domimant gene is not present.

• Verdadero

• Falso

These are examples of dominant traits:

• Chromosome, genetic disorders

• Sickle-cell disease

• Widow’s peak, ability to curl the tongue

Albinism, blue eyes andt type O blood are examples of recessive genes?

• Verdadero

• Falso