JAMB Biology Past Questions & Answers - Page 5

In genetics, an allele is one of two or more versions of a gene that are found at the same place on a chromosome. Alleles can come in different versions, with each version bringing about different phenotypic traits. For example, a gene for flower color may have one allele that produces red flowers and another allele that produces white flowers. Therefore, the alternate form of a gene is an allele.

The primary products of photosynthesis are glucose and oxygen. During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose, a simple sugar that serves as the main source of energy for the plant. Oxygen is also produced as a byproduct of photosynthesis and is released into the atmosphere.

Red blood cells, also known as erythrocytes, are responsible for carrying oxygen to the body tissues. They contain a protein called hemoglobin, which binds to oxygen in the lungs and transports it to other parts of the body.

The primary source of variation in a population is mutation. Mutation is a spontaneous change in the DNA sequence of an organism's genome. It introduces new genetic variations by altering the existing genetic information.

The heart is a vital organ in the circulatory system responsible for pumping and circulating blood throughout the body.

Carrying capacity refers to the maximum number of individuals of a species that a particular environment can sustain over a prolonged period of time. It represents the balance between the available resources in the environment and the population's demand for those resources.

Population ecology is a branch of ecology that focuses on the study of populations of organisms belonging to the same species. It involves examining how populations are distributed across different habitats and how their numbers change over time.

One of the important characteristics of green plant is that they can manufacture their food (Autotrophic).

The tilapia fish can be classified under chordata phylum in the animal kingdom.

Operculum or gill cover helps the tilapia fish in gaseous exchange.