To a plant, leaves are food producing organs. Leaves "absorb" some of the energy in the sunlight that strikes their surfaces and also take in carbon dioxide from the surrounding air in order to run the metabolic process of photosynthesis. The green color of leaves, in fact, is caused by an abundance of the pigment "chlorophyl" which is the specific chemical agent that acts to capture the sunlight energy needed for photosynthesis. The products of photosynthesis are sugars and polysaccharides. An important "waste product" of photosynthesis is oxygen. To an animal, a leaf may be a food source or a place to live on or under.
Answer:
WwNn
Explanation:
- Long wings (W) are dominant over short wings (w)
- Brown pigments (N) are dominant over yellow pigments (n)
A fly that is homozygous dominant for both traits (WWNN) is crossed with a fly that is homozygous recessive for both traits (wwnn).
All gametes produced by the WWNN individual will be <em>WN,</em> and all gametes produced by the homozygous recessive individual will be <em>wn</em>.
When the gametes from the two parents combine, the zygote will be heterozygous for both genes, with the genotype WwNn.
