Probability Quiz

What is the definition of chance?

• A) A certain event

• B) A random, unpredictable event

• C) A planned event

• D) A repeated event

What does probability measure?

• A) The certainty of an event

• B) The likelihood of an event occurring

• C) The frequency of an event

• D) The impact of an event

How is probability calculated?

• A) # of trials / # times an event occurred

• B) # times an event occurred / # of trials

• C) # of trials * # times an event occurred

• D) # times an event occurred - # of trials

In what forms can probability be expressed?

• A) As a whole number, decimal, or fraction

• B) As a percentage, ratio, or fraction

• C) As a percentage, whole number, or ratio

• D) As a ratio, decimal, or whole number

What is the result of a one-factor cross in a Punnett square?

• 2 box Punnett square

• 4 box Punnett square

• 6 box Punnett square

• 8 box Punnett square

Which law should be used when working with Punnett squares?

• Law of independent assortment

• Law of dominance

• Law of segregation

• Law of incomplete dominance

Where are the gametes of one parent placed in a Punnett square?

• On the right and bottom

• On the left and top

• On the top and bottom

• On the left and right

If both parents are heterozygous for the trait where T = tall and t = short pea plants, what are their genotypes?

• TT

• Tt

• tt

• Tt and tt

If both parents are heterozygous for the trait where T = tall and t = short pea plants, what are their phenotypes?

• Both parents are short

• One parent is tall, and one is short

• Both parents are tall

• One parent is tall, and one is heterozygous

What is the frequency of the genotype TT?

• 50%, 1/2, or 2

• 25%, 1/4, or 1

• 75%, 3/4, or 3

• 0%, 0, or 0