Genetics Practice

The ___________ of an organism represents the organism's genetic make-up.

• Genotype

• Phenotype

• Dominant

• Recessive

The ___________ of an organism represents the physical characteristics.

• Genotype

• Phenotype

• Dominant

• Recessive

In rabbits, black fur (B) is dominant to brown fur (b). Consider the cross between two rabbits. Both of the parents in the cross are _______________.

• Brown

• Black

• Homozygous Dominant

• Homozygous Recessive

In rabbits, black fur (B) is dominant to brown fur (b). Consider the cross between two rabbits. The phenotype of the offspring of the offspring in box 3 would be________

• Brown

• Black

• A mixture of black and brown

• Phenotype cannot be determined

In rabbits, black fur (B) is dominant to brown fur (b). Consider the cross between two rabbits. The genotype of the offspring of the offspring in box 3 would be________

• BB

• Bb

• bb

• None of these options are correct

If a partially white cat mates with a black cat, what are the expected phenotypes of the kittens?

• All of the kittens will be black

• Three-quarters of the kittens will be black, and one-quarter will be partially white

• Three-quarters of the kittens will be partially white, and one-quarter will be black

• Half the kittens will be black, and half the kittens will be partially white

Ogre eye color is an incompletely dominant trait, yellow eyes(YY), green(Yy) and blue (yy). If Shrek displays yellow eyes and Fiona’s are blue, how many, if any, of the offspring match their fathers eye color?

• 0/4

• 1/4

• 2/4

• 3/4

In Hogwarts, a student can only attend if they possess pureblood alleles, pureblood alleles would allow them to create and learn magic. These pureblood alleles are dominant over muggle alleles. If a halfblood (Pp) and a muggle (pp) have a baby, what is the probability that the child will remain a magicless muggle?

• 25%

• 50%

• 75%

• 100%

A lovely couple, have two biological children and one who is adopted. Marie is type A blood, Jeremy is type B and Benjamin is type O. If the parent blood types are OO and BO which child cannot be their biological child?

• Marie

• Jeremy

• Benjamin

• Cannot be determined from information

Red-Green colorblindness is a sex-linked trait. If a colorblind male and a carrier woman (normal vision) were to have children how many, out of the four, would exhibit colorblindness?

• 1/4

• 2/4

• 3/4

• 4/4