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a. Genotypes of the same species always help each other ob There can be considerable variation in traits amongst genotypes c.Which statements of theses are correct and why?

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Answer #1

a. wrong - Genotypes are simply gene composition of an organism. Genotypes of the same species, some with dominant genes and some with recessive do not necessarily help or fight with each other. It depends on the environment.
b. True - organisms with the same genotype can have different phenotypes. There can be variable penetrance, expressivity, extrachromosomal inheritance...etc that shape the phenotype.
c. False - Again, genotypes do not necessarily compete or help each other.
d - True - Niche means the space occupied for food and other requirements, it is different from habitat. Organisms with the same genotype may have different phenotypes, and thus different preferences. This leads to niche compartmentalization.

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