AIR Review - Genetics and Heredity

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Which of the following will only show if two alleles are present?

• a dominant trait
• a recessive trait

Mr. Jones was killed in a car accident.  Afterwards, a former girlfriend filed a paternity suit claiming that Mr. Jones was the father of her child, and thus she was entitled to the man’s estate.  Which sample of DNA would have to be from Mr. Jones if he were the child’s father? 

• 2
• 3
• 4
• 5

Whose blood was found at the crime scene?

• John
• Lisa
• Bob
• Sure

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication
• Translation
• Transcription

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands