Heredity and Variation

These are the examples of Inherited characteristics, except...

• Eye color

• Hair color

• Height

• Tattoo

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Gregor Mendel was:

• an Austrian monk who discovered the basic principles of heredity through experiments in peas

• an English scientist who carried out research with Charles Darwin

• a British naturalist who developed a theory of evolution based on natural selection.

• a French naturalist and an early proponent of the idea that biological evolution occurred and proceeded in accordance with natural laws

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Which branch of biology is concerned with studying physical characteristics in humans, like hair color and overall appearance, through the passing on of specific characteristics?

• Inheritance

• Genetics

• Genealogy

• Psychology

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Mendel believed that the characteristics of pea plants are determined by the...

• inheritance of units or factors from both parents

• inheritance of units or factors from one parent

• relative health of the parent plants at the time of pollinatio

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An allele is:

• another word for a gene

• a homozygous genotype

• a heterozygous genotype

• one of several possible forms of a gene

Phenotype refers to the ______________________ of an individual.

• genetic makeup

• actual physical appearance

• recessive alleles

Why did Mendel choose to study pea plants in order to learn how traits are passed from parent to offspring?

• Pea plants grow quickly

• Pea plants are rare and expensive

• Pea plants are take years to grow

• Pea plants are ultraviolet

One trait that is ALWAYS present and causes the other traits to disappear is a ________________________

• recessive trait

• absent trait

• agressive trait

• dominant trait

Recessive traits are ALWAYS present

• TRUE

• FALSE

Assuming that both parent plants in the diagram below are homozygous, why would all of the f1 generation have yellow phenotypes?

• because the f1 genotypes are homozygous

• because yellow is dominant over green

• because both parents passed on yellow alleles

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