Analyze the results of a cross between two organisms that are both heterozygous for two different genes (AaBb). Use a Punnett square to evaluate the possible genotypes. (1) List all the genotypes from you Punnett square in the answer space. (2) Determine how many phenotypes can be produced in the offspring. (3) Determine the probability of producing offspring with the aabb genotype. (3 points)
Can anyone help explain this ? I really need a good grade !

Question

Analyze the results of a cross between two organisms that are both heterozygous for two different genes (AaBb). Use a Punnett square to evaluate the possible genotypes. (1) List all the genotypes from you Punnett square in the answer space. (2) Determine how many phenotypes can be produced in the offspring. (3) Determine the probability of producing offspring with the aabb genotype. (3 points) 
Can anyone help explain this ? I really need a good grade !

anonymous · Answer

@tarot98 This website clearly explains it. If you need help just ask. http://www.biology.arizona.edu/mendelian_genetics/problem_sets/dihybrid_cross/03t.html