In short-horned cattle, the allele for white coat and the allele for red coat are codominant. A cross between a red bull and a white cow. Show your working. Use R to represent red allele and W to represent white allele.

Life on Earth depends on photosynthesis because it is the primary process that converts light energy into chemical energy, producing glucose (food) for plants and, subsequently, for all other organisms in the food chain. Additionally, photosynthesis releases oxygen into the atmosphere, which is essential for the respiration of most living organisms, including humans and animals. Without these two vital products, most life forms would not be able to survive.

Photosynthesis occurs predominantly in leaves because leaves are specifically adapted for this process. They contain chloroplasts with chlorophyll, the pigment that absorbs light energy. Leaves have a broad, flat surface to maximize light absorption and stomata for efficient gas exchange (taking in carbon dioxide and releasing oxygen). Roots, on the other hand, are typically underground, lack chlorophyll, and are primarily specialized for absorbing water and minerals, not for photosynthesis.