University:
Eastern Kentucky University
Course:
BIO 315 | Genetics
Academic year:

2020
Views:

486

Pages:

2
Author:

emplanasf3fe

28 Bikini Bottom Genetics Review 1. Use your notes to complete each definition. Purebred Also called Homozygous ous and consists of gene pairs with genes that are the Same Hybrid Also called Heterozygous: and consists of gene pairs with genes that are Genotype is the actual genetic makeup represented by Letters different Name Phenotype is the physical appearance of a trait, such as a yellow or blue boxly color 2. Classify each of the following gene pairs as heterozygous (He) or homozygous (Ho). Bh He did Ho 3. Give the possible genotypes for each trait based on the information provided in the chart. Blue (y) Ff He Rr He Characteristik Body Shape Body Color Dominant Gone Squarepants (5) Yellow (Y) Recessive Cone Roundpanh Eve Shape Round (B) Oval fr Purebred squarepants-SS Hybnd round eyes - Rr Blue body-yy Purebred roundpants SS Heterozygous squarepants - SS Homozygous yellow body. YY 4. Give the phenotypes for cach genotype based on the information provided in the chart. ss. Squarepants x, Yellow body . Oval eyes Rr. Round eyes 85-Round pants rr. Yellow body 5. Spongebob's cousin, Sponge JimBob, is a heterozygous yellow sponge. He receatly married a blue sponge eat Create a Pumett square to help you answer the questions SJB = Yy BSG yy What are the possible genotypes and phenotypes for the offspring? Y y yYy yy Yy, yy What percentage would be yellow? 50% What percentage would be bloe? 50 6. SpongelimBob has oval eyes, while his bride is believed to be homozygous for her round eye shape. Create a Punnett square to help you answer the questions SUB=rr rr BSG=RR What are the possible genotypes and phenotypes, for the offspring? Possible ge notypes = Rr Possible Phenotype = Round What percentage would have round eyes? 100% What percentage would have oval eyes? 0% Shelley, one of Gary's cousins, has a beautiful hot pink shell that is a result of incomplete dominence. The gene for a red shell is represented with an R, while W is used the gene for a white shell. A snail with both of those genes (RW) has a pink shell. Use this information to answer the questions Shelley Rw = Pink 7. If a snail with a red shell were crossed with one with a white shell, what color shell would the children have? Create a Punnett souure to help you. Explain. WW RRW RW RRW RW All of the children would have the Pink Shell because each of the parents were Homozygous for the Red or white Color The colors were Combined M the children. 8. Sherry, who is a pink-shelled snail, would like to have kids with red shells. What type of snail would she need to marry in order for the best chance for kids with red shells? Explain your answer.