Aplant is homozygous for flower color. its flowers are pink.

which conclusion is best supported by the information?

a. flower color is a recessive trait.

b. flower color is a dominant trait.

c. both parents had an allele for pink flower color.

d. only one parent had an allele for pink flower color.

The correct answer is A. Flower color is a recessive trait.

The recessive gene does not show its effect in heterozygous condition according to Mendel’s law of dominance. Thus, in heterozygous condition, dominant gene determines the phenotype for a trait. In this question a plant is homozygous for flower color. This indicates that pink flower determining gene can only be expressed in homozygous condition. Therefore, flower color is a recessive trait.  

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).