Chromosomes are "what make up a persons DNA." When a person reproduces to make a baby they will be given 12 chromosomes from their father and another 12 from their mother which created the genetic makeup of that person which includes:facial features, height, etc..
Hope this helps!
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.
This would be the punnet square:
PT Pt pT pt
pt PpTt Pptt ppTt pptt
pt PpTt Pptt ppTt pptt
The first stage of cellular respiration is most commonly referred to as glycolysis!
Think recessive phenotypes as paper and dominant phenotypes as teared paper. Once paper is teared, it can't be fixed. Not even tape. It'll just leave that mess exposed. Same with dominant phenotypes. It just takes one dominant trait to change the looks of future offspring.
If you don't tear the paper, everything is fine. Same with recessive phenotypes. As long as there's no contact with any dominant phenotypes, the looks of future offspring will change.