For a monohybrid cross, you are crossing two alleles with two alleles. in a dihybrid cross, you are crossing four alleles with four alleles.
This is because the traits like height, are influenced by environmental conditions around the individual. For example, there are two children born to same mother. But one is given best facilities, nutrition and care, whereas other one is brought up by a poor family, which hardly get good food to eat. His condition is much worse than the first case. In such a situation, the former child will grow up healthy and fit, and will have more height than the later one. Although, both got genes from same parent, but the environmental conditions influenced the expression of those genes differently.
Answer:
Create a punnet square for both problems the 2. with pods yellow is going to be yy while the green pod which would be Gg and you would put that on the side.
1. is with guinea pigs so the top of your square is going to be BB on the side and BB on the top. Genotype is what you are putting the the different squares and the phenotype is the physical trait like black hair or a green pod.
Explanation:
B1 (Thiamine), because chronic alcoholics often have poor nutrition, and Thiamine deficiency in the brain can lead to "Wernicke Encephalopathy."
