Ms. Edmondson

Question #1 What does the term phenotype mean? Answer: How a trait appears/looks

Question #2 What does the term genotype mean? Answer: The group of genes that make up a trait (the letters)

Question #3 What does a capital letter mean? Answer: It means the allele is dominant

Question #4 If an allele is recessive how many copies of the allele are needed for it to be expressed? Answer: Two copies (aa-one from mom and one from dad)

Question #5 What type of alleles are known as ‘loud and bossy’? Answer: Dominant alleles

Question #6 Purple flowers (P) are dominant to white flowers. Write the genotype of a heterozygous purple flower. Answer: Pp

Question #7 Purple flowers (P) are dominant to white flowers. If a white flower is crossed with a heterozygous purple flower, what is the chance of having white flowers? Answer:50% Pp pp p p p P

Question #8 Purple flowers (P) are dominant to white flowers. If two heterozygous flowers are crossed, what is the chance of having white flowers? Answer:75% PP Pp pp p P p P

Question #9 Is AA, heterozygous, homozygous dominant or homozygous recessive? Answer: heterozygous dominant

Question #10 If red colored dragons are dominant to orange colored dragons what is the phenotype for a dragon who is Rr? Answer:Red

Question #11 If red colored dragons are dominant to orange colored dragons what is the genotype for a dragon who is orange (use R)? Answer:rr

Question #12 What is another name for homozygous? Answer:Purebred

Question #13 What is another name for hybrid? Answer:Heterozygous

Question #14 In Oompa Loompahs, gray faces (G) are dominant to orange. If a homozygous gray faced male married a heterozygous gray female and they have 6 kids, about how many will have gray faces? Answer:½ * 6 = 3 GG Gg GG Gg g G G G

Question #15 Two heterozygous Oompahs are crossed. What proportion of the offspring will have orange faces? Answer:75% GG Gg gg g G g G

Question #16 In a certain type of fish there are three possible alleles; red, orange, and yellow. Orange is the intermediate of red and orange. Assuming red is R and yellow is Y, what is the genotype for the orange fish? Answer:RY

Question #17 In these same fish where RR- Red, RY- Orange, and YY- Yellow, what are all of the possible phenotypes of an orange fish is mated with a yellow fish? Answer:orange and yellow RY YY Y Y Y R

Question #18 In these same fish where RR- Red, RY- Orange, and YY- Yellow, what are all of the possible genotypes if two orange fish are mated? Answer:RR, RY, YY RR RY YY Y R Y R

Question #19 In these same fish where RR- Red, RY- Orange, and YY- Yellow, what are the chances of having yellow fish if a red fish is mated with a yellow fish? Answer:0%, all would be orange RY Y Y R R

Question #20 R is red and W is white in 4 o’clocks. If a pink flower is crossed with a red flower what are the chances of getting red flowers? Answer:50% chance RR RW R R W R

Question #21 In heffalumps, pink (P) and yellow (Y) are equally dominant, the heterozygote is spotted. If two spotted heffalumps are mated, what are the changes of getting the yellow gene? Answer:25% chance PP PY YY Y P Y P

Question #22 In heffalumps, pink (P) and yellow (Y) are equally dominant, the heterozygote is spotted. If a pink heffalump is mated with a spotted heffalump, what are the changes of getting the yellow gene? Answer:0% chance PP PY P P Y P

Question #23 In some cattle the color roan is a mixture of red (R) and white (W)? What are the genotypes for the following colors: Red- ____ White- ____Roan- __ Answer:RR, WW, RW

Question #24 In some cattle the color roan is a mixture of red (R) and white (W)? If a red cow and a white bull are mated, what are the chances of having roan babies? Answer:100% RW W W R R

Question #25 In humans, blood type is a classic example of a trait inherited by multiple alleles. What does multiple alleles mean? Answer:There are more than two alleles for a trait (within a population).

Question #26 In humans, blood type is a classic example of a trait inherited by multiple alleles. How many different alleles are there? Answer:3

Question #27 In humans, blood type is a classic example of a trait inherited by multiple alleles. What are the three alleles possible? Answer:A, B, and O

Question #28 In humans, blood type is a classic example of a trait inherited by multiple alleles. How many alleles does each person receive? Answer:2, one from mom and one from dad

Question #29 Complete the following: Blood Types ____ and ____ are dominant over Type O Answer:A and B

Question #30 Complete the following: Blood Types ____ and ____ are codominantly expressed, meaning they are expressed together Answer:A and B

Question #31 What blood type is known as the universal donor and why? Answer:Type O blood, because it has no antigens on its surface and therefore can be given to any person

Question #32 What blood type is known as the universal receiver and why? Answer:Type AB blood, because it will not react poorly to antigen A or B and a person with this blood type can receive a tranfusion from anyone

Question #33 If a mother is homozygous for type A blood and a father is heterozygous for type B blood, what are the chances of having a child with type O blood? Answer:0% AB AO AB AO O B A A

Question #34 If a mother has type B blood and her son has type O blood is the mother homozygous B or heterozygous B? Answer:Heterozygous, because he had to get one O from dad and one O from mom

Question #35 A woman and her husband claim that their child was mixed up on the hospital because of its dark hair. The mother has type B blood and the father has type A blood. The alleged child has type O blood. Should the parents be concerned? Answer:No, the mom and dad could both be heterozygous resulting in a child with type O blood.