In a certain plant tall T is dominant to short t Red flowers

In a certain plant, tall, T is dominant to short, t. Red flowers, R is dominate to white flowers, r. A gardener crosses a TtRr plant with a ttrr plant. Seeds from this cross produced 52 plants which are tall and red and 48 plants that are short and white. Explain these results.

Solution

Answer:

The genes for height of the plant and color of the flower are completely linked. The configuration is cis linkage.

TR/TR & tr/tr

Cross:

TR/tr x tr/tr

Tall & Red (1) : Short & White (1)

52 : 48 = 1 : 1