In a plant species, flower color has two traits: purple flowers and white flowers. For the flower tree purple self-pollinated, giving birth to 100 plants, including 23 plants with white flowers.

a) Which trait is dominant? Explain.

b) Determine the genotype of purple-flowered plant in P and write a hybrid diagram for the above hybridization.

c) In the F1 plants, how many plants are heterozygous for flower color?

What causes temperature extremes in the desert

Look at the photo of the leaf. which term best describes this leaf?

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.