Certain alleles may cause serious diseases in a given environment but they may also be beneficial in different environmental conditions. It is a principle of natural selection.
<h3>Natural selection and alleles</h3>
Natural selection refers to the differential survival and reproduction of an organism in a given environment.
Certain alleles such as the allele of sickle cell disease show an evolutionary advantage in specific environmental conditions.
This allele is lethal in homo-zygous individuals, thereby tending to be eliminated from the population.
However, in regions where malaria is endemic, the presence of carriers individual having the sickle cell allele is advantageous to prevent this disease.
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I would say B.
A, umm, don't crash trains, that's bad.
C, Lillian is wondering how fast a train can go, not at what curve will it fall.
D, Lillian isn't wondering about the size of the trains, just the speed.
These steps are characteristic of a diplontic life cycle, in which haploid gametes are produced.
Character displacement differs from resource partitioning because character displacement is directly linked to the evolution of genotypes that have allowed alternate resource use
<h3>What is
genotypes ?</h3>
An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype. The number of copies of each chromosome found in that species, also known as ploidy, determines how many alleles a person can have for a certain gene.
In diploid organisms like humans, there are two complete sets of chromosomes, which means that each person has two alleles for each gene. Homozygous refers to a genotype when both alleles are the same. Heterozygous refers to a genotype when there are two distinct alleles.
Phenotype, the observable qualities and attributes of an individual or creature, is influenced by genotype.
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