What is DNA and why is it important to reproduction
What is a recessive trait?
Why is variation (differences) in individuals important to a specie’s survival?
DNA stands for deoxyribonucleic acid, which is a molecule that carries the genetic instructions for the development, functioning, and reproduction of all living organisms. DNA is important in reproduction because it contains the information necessary for the creation of offspring. During reproduction, DNA is passed from parent to offspring, ensuring that the genetic information is inherited.
A recessive trait refers to a genetic trait that is only expressed or observed in an individual when two copies of the gene responsible for the trait are present. In other words, the trait is masked or overshadowed by a dominant trait when only one copy of the gene is present.
Variation in individuals is important for a species' survival because it allows for adaptation to changing environments and increases the chances of survival in the face of new challenges, such as diseases and predators. With variation, some individuals may possess traits that make them better suited to their environment, increasing their ability to reproduce and pass on their advantageous traits to future generations. Additionally, variation provides a genetic pool from which natural selection can act upon, allowing a species to adapt to changing conditions over time.