How many haploid sets of chromosomes are present in an indiv

How many haploid sets of chromosomes are present in an individual cell that is tetraploid (4n)?

I know the answer is 4 sets, but could you please explain it! :)

Solution

Haploid, diploid and other ploidy terms represent number of chromosomes in a set. If there is two chromosomes bear a set then called diploid, three chromosomes in a set- triploid and so on. The chromosomes in a set are homozygous to each other and that’s why they can create a set. Heterozygous cannot create sets. A body is developed through zygote formation; so generally all cells bear same number of sets and chromosomes. It is because they develop in same body through same zygote. In zygote formation, gametes from male and female comes together to form it. The combination doubles the number of chromosomes in a zygote such as haploid gametes meet together to form diploid zygote. So these chromosomes come from parents and get doubled by linking together through similar chromosomal attachment.

The tetraploid means four same like chromosomes in a set; the four homozygous chromosomes.