GENE
Genetic variation determines inherited differences between individuals . Our height or eye color are inherited from our parents, but our phenotype is also affected by environment such as the food we eat (diet), drugs we take, toxins surrounding us, climate, location, culture, physical accidents and lifestyle.A person may inherit a gene to be tall, but poor diet during childhood may cause stunted growth.<span>A Plant may have the potential for strong growth, but if the soil does not have sufficient minerals, the plant may hardly grow at all.</span>
An alteration to chromosome structure which only involves one chromosome is called MONOSOMY.
Alterations in chromosomes structures usually leads to mutation. Monosomy refers to the condition of heaving a diploid chromosome complement in which one chromosome lacks its homologous partner.
I’m not sure but it might be the third one
In a survey, it says that human's DNA are 99% the same.
Hope this helps! :)
