Chapter 11 Review

Who is Gregor Mendel

• an Austrian Monk from the mid 1800s who contributed to the study of Genetics

• The scientist who discovered the structure of DNA

• a British scientist who discovered penicillin

• The scientist who used X-Ray Crystallography to shed light on the structure of DNA

What did Gregor Mendel study?

• Mold Spores

• Pea Plants

• Sun Flowers

• Rats

What was the theory of genetics before Mendel did his experiments.

• All traits were random

• All traits skipped a generation

• All traits were decided by God

• All traits were a mixing of the the parents traits

What specifically about Pea Plants did Mendel Study?

• Color of Pea Flower

• Colors of individual Peas

• Texture of Peas

• All of these

Why were pea plants perfect a study on Heredity?

• Pea plants are complex

• They were easy to study

• One gene controlled one trait. (i.e. it was simple)

• One gene was controlled by multiple traits

What was Mendel's first conclusion?

• Pea plants were inheriting a pair of genetic instructions from both parents.

• Pea plants were inheriting genetic instructions from their grandparents.

• Pea plants were inheriting genetic instructions only from their maternal parent.

• Pea plants were inheriting genetic instructions only from their paternal parent

Mendel's Law of Segregation means?

• Every person has two alleles for each trait, they segregate from each other and the dominant is passed more often.

• Every person has two alleles for each trait, Where two traits are being passed, they do not effect each other.

• Every person has two alleles for each trait, they segregate from each other and are passed down at random.

• Every person has two alleles for each trait, they segregate from each other and the recessive is passed more often.

When an organism has two of the same alleles, it is called

• homozygous

• heterozygous

• recessive

• dominant

When an organism has two different alleles, it is called

• homozygous

• heterozygous

• recessive

• dominant

_____ are units of heredity made up of DNA.

• Centrioles

• Chromosomes

• Dnatoms

• Genes