A gene is a segment of DNA that encodes function. A chromosome consists of a long strand of DNA containing many genes. A human chromosome can have up to 500 million base pairs of DNA with thousands of genes.he total complement of genes in an organism or cell is known as its genome, which may be stored on one or more chromosomes. A chromosome consists of a single, very long DNA helix on which thousands of genes are encoded. The region of the chromosome at which a particular gene is located is called its locus.
Yes. Even the plants and algae that are completely under the surface are exposed to enough sunlight to conduct photosynthesis. Shoreline plants and partially submerged plants are included in water biomes, and these, of course, photosynthesize.
Light energy, carbon dioxide and water must be transported to or obtained by the plantsâ leaves to undertake photosynthesis. Light energy is typically absorbed by the plant in the form of sunlight. Carbon dioxide is procured through the plantsâ stomata, which are tiny pores in the leaves. Water, the third requirement to undertake photosynthesis, is obtained by the plantsâ roots and transferred to the leaves through the plantsâ tissue system. Photosynthesis takes place in two distinct stages, known as light reactions and dark reactions.