what best sums up Mendel's contribution to biology?

Question

proposed a mechanism by which species could change over time.


proposed that both males and females contribute to the traits of an offspring.


proposed that proteins are constructed under the direction of DNA


proposed a mechanism to explain how traits are inherited.

Answer 1

The last answer is correct.

Mendel pretty much figured out the basic rules of heredity. He knew he was right because he could predict the outcome of a cross.

Answer 2

An Austrian monk, Gregor Mendel, developed the fundamental principles that would become the modern science of genetics. Mendel demonstrated that heritable properties are parceled out in discrete units, independently inherited. These eventually were termed genes.

Mendel reasoned an organism for genetic experiments should have:

1. a number of different traits that can be studied
2. plant should be self-fertilizing and have a flower structure that limits accidental contact
3. offspring of self-fertilized plants should be fully fertile.

Mendel's work showed:

1. Each parent contributes one factor of each trait shown in offspring.
2. The two members of each pair of factors segregate from each other during gamete formation.
3. The blending theory of inheritance was discounted.
4. Males and females contribute equally to the traits in their offspring.
4. Acquired traits are not inherited.

Therefore: both males and females contribute to the traits of an offspring is the correct answer.

Answer 3

that is REALLY hard to do. but out of the options you gave i would go with the last one. if i could choose my own it would be the fact that he demonstrated the existence of recessive traits and was the first to calculate the probability of an offspring inheriting such a trait depending on the respective traits of the parents