ou work for an agriculture company that plants strawberries. You are given two plants that produce triangle shaped strawberries but do not know what their genotypes are. To determine the genotype, you cross the two triangle strawberry plants and collect F1 progeny. The results are as follows:
76 triangle strawberries
24 square strawberries
You then crossed the F1 square strawberries with the parental triangle strawberries and observe the following results:
48 triangle strawberries
50 square strawberries
A. What's the genotype of the original strawberries? Answer the genotype using the words dominant and recessive. Your answer should have 2 words with no spaces in between. Spelling counts, do not have any extra spaces or punctuations, no exceptions.
B. Which shape is the dominant phenotype?
To determine the genotype of the original strawberries, we can analyze the results of the crosses and identify the patterns.
Firstly, let's consider the cross between the two triangle strawberry plants. The results show that 76 strawberries were triangle-shaped, and 24 were square-shaped in the F1 generation.
We know that in genetics, the square shape is often associated with a recessive trait, while the triangle shape might be associated with the dominant trait. So, if the triangle shape is dominant, we can conclude the genotype of the original strawberries as follows:
A. The genotype of the original strawberries can be described as "dominant recessive."
Moving on to the second cross between the F1 square strawberries and the parental triangle strawberries, the results indicate 48 triangle strawberries and 50 square strawberries.
Since we previously established that the triangle shape might be the dominant trait, we can conclude that:
B. The dominant phenotype is the triangle shape.
By analyzing the patterns, results, and understanding of dominant and recessive traits, we have successfully determined the genotype of the original strawberries and identified which shape represents the dominant phenotype.