Bikini Bottom Genetics
IncompleteDominance
Name
SpongeBoblovesgrowing flowers for his pal Sandy! Her favorite flowers, Poofkins,are found in red,
blue, and purple. Use the information provided and your knowledgeof incompletedominanceto
completeeachsectionbelow.
a bluegene.
a red geneandB represents
1. Write thecorect genotypefor eachcolorif R represents
Red--
Blue-
Purple-
2. What would happenif SpongeBobcrosseda Poofkin with red f'lowerswith a Poofkin with blue flowers
Completethe Punnettsquareto determinethe chancesof eachflower color.
(a) Give the genotypesand phenotypesfor the offspring.
(b) How many of the plantswould have red flowers? -%
(c) How many of the plantswould have purplc flowers?-',tr
(d) How many of the plantswould haveblue flowers?-%'
3. What would happen i1 SpongeBob crossedtwo Poofkins with purple I'lowers'l Conrpletethe Punrtett
squareto show the probability fbr eachflower color.
(a) Give the genotypesand phenotypesfbr the offspring.
(b) How many of the plantswould have red flowers?-tk
(c) How many of the plantswould have pulple flowers?-'/n
(d) How niany of the plantswould have blue tlowers'l -t/"
4. What would happen if SpongeBob crossed a Poofkin with purple flowers with a Poofkin w'ith blue
flowers? Completethe Punnettsquareto show the probabilityfor plants with eachf-lowercolor.
(a) Give the genotypesand phenotypesfor the offspring.
(b) If SpongeBobplanted 100 seedsfiorn this cross,how many shouldhc
expectto have of eachcolor?
Purpleflowers
Blue f-lowers- -
Red flowers -
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SpongeBob and his pal Patrick love to go jellyfishing at Jellyfish Fields! The fields are home to a
special type of green jelll.fish known as Goobers and only really great jellyfishermen are lucky enough
to catch someon eyer]' trip. Nlany of the jellyfish are yellow (YY) or blue (BB), but some end up green
as a result of incomplete dominance. Use this information to help you complete each sectionbelow.
5. What would happenif SpongeBoband Patrick crossedtwo "goobers" or greenjellyfish? Completethe
Punnettsquareto help you determinethe probability for eachcolor of jellyfish.
(a) Give the possiblegenotypesand phenotypesfor the ofTspring.
(b) What percentageof the offspring would be yellow'/ -%'
(c) What percentagewould be blue'?-"/o
(d) What percentagewould be "goobers" (green)'?-o/,'
6. What would happenif they crosseda yellow jellyf-ishwith a goober?Conipletethe Punnettsqlrareto help
you detenninethe probabilityfor eachcolor of jellyfish.
(a) Give the possiblegenotypesand phenotypeslor the offspring.
(b) What percentageof the oll.springwould be ycllow'?-'/,
(c) What percentagewould be blue'?-"/,,
(d) What percentagewould be "goobers" (green)'/-%
7. What would happenif they crosseda blue jellyfish with a yellow jellyflsh'/ Completethe Punnettsquare
t o h c l p y o u c n s w c rt h eq u c s t i o n s .
If 100jellyfish were producedfrorn this cross,how many rvould you
expcctfor euch?
Yellow -
Blue -
Goobers-
8. What would happenil'thev crosseda blue jellyfish with a goober? Cornpletethe Punnettsquareto help
vou answerthe clt-tc-sttotts.
If 100jellyfish were producedfiom this cross,how many would you
c\pect for each?
Yellow -
Blue -
\l ttrkslteel created ln'T. Trirrrltt')llt)-l
Goobers-
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