You are the head of the research division of the Leafy Lettuce Company. Your company is experimenting with growing lettuce using hydroponic technology. Hydroponic technology involves growing plants in containers of growth solution in a greenhouse. No soil is used. The growth solution that the company uses contains water, nitrogen, and phosphorus. The company wants to know if adding iron to this formula will improve lettuce growth.

Explanation below

Explanation:

Generally, Iron is one of the essential elements for the accurate growth of the plant.

The Iron is considered to be important to the formation and right functioning of the chlorophyll, which is the photosynthetic pigment of the leaf and allow the absorption of oxygen into the plant.

It was discovered after an experiment on two type of lettuce that, the fresh weight and total leaf area and leaf number were significantly reduced under iron deficiency.

Therefore, it is concluded that the addition of iron to lettuce is very important to its growth.

The probability that the offspring will have round seed is 1. 100 of the offsprings will have round see, that is all the offsprings will have round seed.

Explanation: Let R represent the allele for round seed while r represent the allele for wrinkled seed. A homozygous dominant round seed plant will have a genotype of RR while a heterozygous plant will have a genotype of Rr. A cross between RR and Rr will produce 2RR and 2Rr. Since R is dominant to r, Rr will manifest outwardly as round seed, therefore all the offsprings will have round seeds.

See the punnett square below:

_ R R

R RR RR

r Rr Rr