Question

In the Galapagos islands, the weather causes a variation in algae growth year to year. Marine iguanas eat the algae, and during the years with more algae growth, the marine iguanas lay more eggs. What is the benefit of this overproduction of eggs?

Overproduction increases the likelihood of mutations, introducing genetic variation.
Overproduction decreases competition for resources, leading to a larger overall population.
Overproduction decreases the chance for genetic mutations, leading to a healthier population.
Overproduction ensures that there will be enough food for the smaller and weaker animals.

Answer 1

The correct answer is option A

Genetic variation refers to the variation in DNA sequence in genome of each individual of a population. It is increased due to mutation, random fertilization, random mating, and crossing over during meiosis.  

Thus, overproduction of eggs would increase the likelihood of genetic variation in a population.  

Increased genetic variations favors natural selection and thus, prevent the extinction of species in varying environment.

Answer 2

The benefit of the overproduction of the eggs should be option A. Overproduction increases the likelihood of mutations, introducing genetic variation.

What is genetic variation?

It means the variation that is made in DNA sequence with respect to each individual of a population. It should be increased because of the mutation, random fertilization. Due to this, the overproduction of the eggs should be increased the variation arise in the population. Also, it considered the natural selection also the species extinction should be prevented.

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