Inheritance

What is the best definition for an "inherited trait?"

• A genetic trait that is passed from parents to offspring

• A trait that you develop by practicing

• Anything that you get from your family

• A gene

If an offspring receives an allele of genetic information for two different forms of a trait from its parents, which trait will it express?

• It will share or blend the traits

• Whichever trait is recessive

• Whichever trait is dominant

• There is a 50/50 chance of having either trait

If an offspring has a dominant form of a trait, for example hitchhikers thumb, it will also:

• certainly have the dominant forms of other traits, for example a unibrow.

• have the recessive form for other traits, for example freckles.

• have an assortment or variety of recessive and dominant traits that are independent of each other.

• have a 50/50 chance of having any form of a trait.

Mendel found that if he crossed a pure bred white-flowered pea plant with a pure bred purple-flowered pea plant:

• half of their offspring were usually white and half were usually purple

• All of the offspring were purple

• All of the plants were white

• The results were unpredictable

The genetic information that an offspring receives from it's parents for a form of a trait:

• Recessive

• Allele

• Phenotype

• Trait

A cell containing genetic information from each parent, for example a sperm or an egg.

• Chromosome

• Allele

• DNA

• Gamete

An offspring that receives 2 dominant alleles or 2 recessive alleles from its parents.

• Homozygous

• Heterozygous

• Dominant

• Recessive

An offspring that receives the dominant allele from one parent and the recessive allele from the other parent.

• Homozygous

• Heterozygous

• Genotype

• Phenotype

What happened when Mendel crossed hybrid plants- heterozygous plants with the genetic information for both tall and short traits?

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If a black squirrel and a white squirrel had a baby, what color would it be? Use your knowledge of genetics and vocabulary from this week.

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