ECOLOGY
BIODIVERSITY AND ITS CONSERVATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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number of different species in an ecosystem
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the number of species on the planet
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variety in genotypes across a population
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number of populations in an ecosystem
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Detailed explanation-1: -Genetic variation is a measure of the genetic differences that exist within a population. The genetic variation of an entire species is often called genetic diversity. Genetic variations are the differences in DNA segments or genes between individuals and each variation of a gene is called an allele.
Detailed explanation-2: -Genetic Diversity is the diversity of genetic characteristics (expressed or recessive) within a species (i.e. between individuals and populations of the same species).
Detailed explanation-3: -Genetic Diversity refers to the range of different inherited traits within a species. In a species with high genetic diversity, there would be many individuals with a wide variety of different traits.
Detailed explanation-4: -Which of the following best describes the genetic variation of a population? Genetic variation refers to the fact that different individuals of a population have different alleles of genes.
Detailed explanation-5: -The diversity of alleles and genotypes within a population is called genetic variance. When scientists are involved in the breeding of a species, such as with animals in zoos and nature preserves, they try to increase a population’s genetic variance to preserve as much of the phenotypic diversity as they can.