2 Intro to genetics Biology Quiz

What is heredity?

• The study of plants

• The passing of traits from parents to offspring

• The study of human behavior

• The process of photosynthesis

What are genes?

• Units that contain the hereditary information of organisms

• The physical appearance of an organism

• The behavior of an organism

• The environment in which an organism lives

Who is considered to be the father of modern genetics?

• Charles Darwin

• Albert Einstein

• Gregor Mendel

• Isaac Newton

What is a generation?

• A set of members of a group that are born around the same time.

• The main trait that appears in an organism’s offspring.

• The hidden trait that is not expressed in an organism’s offspring.

• The varying forms of a gene.

What is a dominant trait?

• The hidden trait that is not expressed in an organism’s offspring.

• The main trait that appears in an organism’s offspring.

• A set of members of a group that are born around the same time.

• The varying forms of a gene.

What is a recessive trait?

• The main trait that appears in an organism’s offspring.

• A set of members of a group that are born around the same time.

• The hidden trait that is not expressed in an organism’s offspring.

• The varying forms of a gene.

What is an allele?

• The main trait that appears in an organism’s offspring.

• The hidden trait that is not expressed in an organism’s offspring.

• The varying forms of a gene.

• A set of members of a group that are born around the same time.

What happened when Mendel planted one tall and one short pea plant?

• All short pea plants grew

• All tall pea plants grew

• Half tall and half short pea plants grew

• No plants grew

What is the basis of the idea of alleles?

• Organisms receive one allele from one parent

• Organisms receive two identical alleles from their parents

• Organisms receive two different genes for the same characteristic from their parents

• Organisms receive no alleles from their parents

What percentage of offspring were tall when two tall plants from the F1 generation were bred?

• 100%

• 50%

• 75%

• 25%