Genetics and Evolution

Which describes how people believed traits were inherited before Mendel's discoveries?

• Traits blend like paint colors
• traits segregate into groups
• traits are dominant and recessive
• some traits mix and others don't

Which choice represents a purebred?

• Tt
• TTt
• tt
• tT

When were Mendel's discoveries noticed?

• immediately after his death
• years after his death
• before he died during a conference
• never; Mendel's work was not important

According to Mendel's work, one trait will appear more often.  This trait is called the:  ________   trait

• dominant
• recessive
• purebred
• hybrid

What will best fill in the quadrant indicated by the arrow?

• QQ
• Qq
• qQ
• qq

Y = yellow and y = green.  Given the blank Punnett Square, what will be the percent of yellow offspring?  

• 50% yellow; 50% green
• 75% yellow; 25% green
• 75% yellow and 25% green
• 100% yellow

Y = yellow and y = green.  Given the blank Punnett Square, what will the results be?

• 50% yellow; 50% green
• 75% yellow; 25% green
• 75% yellow and 25% green
• 100% yellow

A Genetic Disorder is...

• something that can be passed on to offspring
• a mistake on the DNA
• changing, adding or subtracting a chromosome
• all of the above are correct

A red and white flower are cross-pollinated.  The offspring are all red.  Red is classified as __________.

• disorder
• purebred
• dominant
• recessive

One parent contributes the gene for blue eyes and another parent contributes the gene for brown eyes.  The offspring have brown eyes.  Which word describes the gene for BLUE eyes?  

• hybrid
• recessive
• dominant
• pedigree