Sect 8.4 - 8.9 Quiz for ck12

Different versions of a gene are called _____.

• Alleles

• Chromosomes

• Homologous

• Traits

The allele that masks the other allele when it is present is the _____ allele.

• Recessive

• Homologous

• Heterozygous

• Dominant

Alleles inherited from parents are referred to as _____. (3)

• Maternal (mother)

• Paternal (father)

• Genotype

• Phenotype

When factored or distributed TtRr will produce how many different sets of alleles?

• One

• Two

• Three

• Four

A box in a monohybrid cross represents _____. (2)

• 6.25%

• multiple offspring

• 25%

• one offspring

Gene loci that are _____ are more likely to be _____. (2)

• far apart

• close together

• inherited together

• inherited without crossover

• on separate chromosomes

Which of the following statements are true regarding probability? (3)

• Works best with small numbers

• Works best with large numbers

• Is defined as the likelihood that an event will occur

• Works best with traits that are not linked

• Is the number of times that an event will occur

Probability can be expressed in which of the following ways? (3)

• A fraction

• An exact number

• A percentage

• A ratio

• A statement that is always true

Which of the following statements are true about test crosses? (3)

• They help us determine the genotype of the parents involved in the cross

• They are used to figure out the genotype of the Offspring in the cross

• They always involve breeding with a homozygous recessive in the cross

• If any recessive Offspring occur we know the parent had to be heterozygous

• If any recessive Offspring occur we know the parent had to be homozygous

Which of the following statements are true about dihybrid crosses? (2)

• They help track a single trait

• They involve a 16 box Punnett Square

• They represent four alleles

• They help us track two traits at the same time

• They use a 4 box Punnett Square