Why is genetic variation a good thing to have within a population ?
A. Variations makes organisms immune to disease
B. Variation makes a population more adaptable
C. Variation is not a good thing in populations
- SOTTLv 42 months ago
B is the answer.
- hcbiochemLv 72 months ago
Just having variation in a population doesn't make individual organisms immune to disease. However, in a diverse population, the chances that some organisms might be immune to a disease or might be able to better survive changing conditions is higher. That makes the population more adaptable.
- RealProLv 72 months ago
Let's take disease as example. Largely due to genetic variation, some individuals of a population are less prone to a given disease and some are more prone to it. If the disease breaks out it is more likely to elliminate one of the latter. In this way the population is rid of weaker individuals on average in the context of the disease meaning it has now become more adapted to the conditions of the environment.
With no genetic variation a disease that elliminates one individual easily will elliminate all of them easily.
- SparkyLv 62 months ago
I would go with A and / or B.
Look at pedigree dogs and all the problems they often have, compared to a bitser.
Cross-breed dogs are usually hardier and healthier than pedigrees.