How natural selection could lead to a change in allele frequency

Allele frequency can be described as a phenomenon which measure how common an allele is in a particular population. It tells about the genes which are richest in a gene pool and it also shows the genetic diversity in a population. Allele frequency is often expressed in percentages.

Natural selection tends to favour those organisms that are best adapted to live in an environment and which can withstand changes occurring in the ecosystem. If due to some circumstances, a trait becomes less useful to organisms in a population then by natural selection the allele frequency for those alleles will reduce with time. Similarly, the alleles which code for better genes for an environmental change will be increased due to the phenomenon of natural selection.

Natural selection can cause micro evolution, or a change in allele frequencies over time, with increase fitness alleles, that becoming more common in the population over generations.

Explanation:

NATURAL SELECTION:

Natural selection is refer to how the offspring organisms or particular genotype or phenotype steps into  the next generation. It  lead to changes in the allele frequency; natural selection can causes small number of evolution and  that causes allele frequencies changed  for long  time; and  the increases in  the allele becoming more common in the population over generation;  

ALLELE FREQUENCY:

Natural selection, genetic drift, mutations, genetic flow are the four factors that changes the population generation. This made the natural selection leads to change in the allele frequency.

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up