EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
similarities in the inherited traits of different individuals
|
|
|
similarities between species in an ecosystem
|
|
|
differences in the inherited traits of different individuals
|
|
|
differences between various species’ mating preferences
|
Detailed explanation-1: -Genetic variation is the presence of differences in sequences of genes between individual organisms of a species. It enables natural selection, one of the primary forces driving the evolution of life.
Detailed explanation-2: -Genetic variation is the difference in DNA sequences between individuals within a population. Variation occurs in germ cells i.e. sperm and egg, and also in somatic (all other) cells.
Detailed explanation-3: -The variation in the traditional genetic expression is termed genetic variation. Genetic variations are caused by mutation and recombination occurring at the time of meiosis. Chemical or biological mutagens play an important role in inducing mutations. Random mating among organisms also affects genetic variation.
Detailed explanation-4: -Genetic variation is a term used to describe the variation in the DNA sequence in each of our genomes. Genetic variation is what makes us all unique, whether in terms of hair colour, skin colour or even the shape of our faces.
Detailed explanation-5: -Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.