Ragos y herencia: genes dominantes y genes recesivos

Gregor Mendel discovered the principle of dominance and recessiveness, where dominant genes mask recessive ones. This principle is encapsulated in the law of dominance, which states that dominant genes are expressed while recessive ones are hidden. Mendel's work with pea plants led to these findings, which apply to various human traits like earlobe shape and tongue rolling.

What did Mendel discover about the relationship between dominant and recessive traits?

• Dominant and recessive traits are always visible.

• Recessive traits can hide dominant traits.

• Dominant traits can hide recessive traits.

• Recessive traits are stronger than dominant traits.

In Mendel's experiments with pea plants, which trait was found to be dominant?

• Short height

• Yellow seeds

• Green seeds

• Tall height

According to the law of dominance, what happens to the recessive gene in a living organism?

• It is always expressed.

• It is hidden by the dominant gene.

• It disappears completely.

• It becomes a dominant gene.

Which of the following is an example of a trait that can be both dominant and recessive in humans?

• Height

• Earlobe shape

• Skin tone

• Eye color

What was one of the key contributions of Gregor Mendel's research?

• Understanding of genetic dominance and recessiveness

• Discovery of photosynthesis

• Development of the theory of evolution

• Invention of the microscope