Punnet Square Practice

Worksheet by Amina Gaffar
Punnet Square Practice worksheet preview image
Subjects
Biology
Grades
9
Language
ENG
Assignments
28 classrooms used this worksheet

The EdPuzzle videos I have assigned leading up to this assignment would be helpful to watch before you attempt to turn this in! Let's do some vocab recap first Match the terms to their definitions or examples Heterozygous Bb Homozygous dominant BB Homozygous recessive bb Genotype represented by letters Phenotype physical expression of genotype For this first set of questions be are going to use SpongeBob as our example. Spongebob is heterozygous for his square shape and recessive for his blue eyes. Which of the following would best represents Spongebob's genotype of his square shape? RR Rr rr Which of the following would best represent Spongebob's genotype for his blue eyes? EE Ee ee SpongeBob's genotype for his four fingers is ff, meaning he is homozygous recessive. The punnet square pictured before shows a cross between him and SpongeSusie, his girlfriend, who is heterozygous for five fingers. What is the probability their child will have four fingers like SpongeBob?***The picture is below the answer options*** 100% 50% 25% 0% Use the punnet square below to help you answer the questions below SpongeBob is homozygous recessive for his blue eyes. Based on the punnet square above, what is SpongeSusie? Homozygous dominant Heterozygous Homozygous recessive If you filled in the punnet square above, what is the probability that their child will be heterozygous? 100% (4 50% (2 25%(1 Use the punnet square below to answer the questions below it The punnet square above is showing SpongeBob's heterozygous genotype for his square shape. SpongeSusie is recessive for her round shape. What is her genotype? SS Ss ss The punnet square above is showing SpongeBob's heterozygous genotype for his square shape. If he had a baby with SpongeSusie, who is recessive for her round shape, what is the change their child will be square? 100% (4 75% (3 50%(2 0% (0 Now try one on your own! SpongeBob's brother, SpongeBill, is homozygous dominant for his square shape. His wife SpongeSally is heterozygous for her square shape. Their baby is round. SpongeBill and SpongeSally are sure the hospital mixed up their baby. Did they? How do you know?

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