8th Ch 2:1- Mendel and His Peas

Front

Why did Mendel choose pea plants for his experiments?

Back

Mendel chose pea plants because they had only 2 observable alleles, which made it easier to record data.

Front

What is a factor that seems to disappear in genetic inheritance?

Back

A factor that seems to disappear is called a recessive factor.

Front

What best describes Mendel's approach to his experiments?

Back

Mendel controlled pollination in his experiments.

Front

What is a genetic factor that blocks another genetic factor called?

Back

A genetic factor that blocks another is called a dominant trait.

Front

In which generation did the recessive trait reappear when Mendel crossed two true breeding plants?

Back

The recessive trait reappeared in the 2nd generation.

Front

What is the term for the observable characteristics of an organism?

Back

The observable characteristics of an organism are called the phenotype.

Front

What is the genetic makeup of an organism called?

Back

The genetic makeup of an organism is called the genotype.

Front

What is the principle of segregation?

Back

The principle of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a trait.

Front

What is a heterozygous genotype?

Back

A heterozygous genotype has two different alleles for a trait.