. Advertisement .
..3..
. Advertisement .
..4..
An African violet grower observes that genetically identical African violet plants growing near the walls of the greenhouse have white flowers, that plants growing farther away from the walls have pale blue flowers, and that plants growing nearest the center of the greenhouse have dark blue flowers.
Which of the following best explains the differences in flower color of the African violets in the greenhouse?
A majority of the elements possess common effect characteristics that are which are expressed in three levels: minimal and optimal, as well as maximum. When an element is located in its optimal area, it will develop and grow to its maximum potential and at the highest growth rate. If this element has either a maximum or minimum impact, the organism ceases growing or even dies. External factors that influence the lives of living organisms are physical biological, and chemical with physical factors are the most obvious. Physical elements include temperatures, humidity, light.
Warmer temperatures result in genotypic alterations, which result in flower color differences. The plants along the walls of the greenhouse are homozygous recessive and therefore have white flowers. An enzyme responsible for flower color does not fold correctly in cooler temperatures, and the greenhouse is warmest in the center. More light is available along the walls of the greenhouse, so the flowers need less pigment to absorb sunlight for photosynthesis.