Explain why polygenic traits are expressed through quantitative variation

Polygenic attributes are quantitative in light of the fact that their phenotype articulation relies upon a few unique alleles found on various chromosomes. The latent alleles of these three qualities (a, b and c) control light pigmentation since lower measures of melanin are created.

Quantitative characteristics are likewise called consistent attributes, and they remain as opposed to subjective, or intermittent, qualities that are communicated as unmistakable phenotype's looked over a discrete set.

the answer is "meiosis ii in the mother".

the procedure of meiosis includes two divisions of the hereditary material. the main division is known as the decrease division – or meiosis i – on the grounds that it lessens the quantity of chromosomes from 46 chromosomes or 2n to 23 chromosomes or (n depicts a solitary chromosome set). in people, the decrease division results in two sperm cells each with 23 chromosomes or an egg cell with 23 chromosomes and one disposed of polar body. the second division – or meiosis ii – is called equational division. the two sperm cells split again creating four sperm cells, each with 23 or n chromosomes. in oogenesis, the egg cell and polar body partition to shape the ovum and two extra polar bodies. along these lines, the posterity are guaranteed to get one portion of the chromosomes from the mother and one half from the dad.