Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. In fact, each species of plants and animals has a set number of chromosomes. A fruit fly, for example, has four pairs of chromosomes, while a rice plant has 12 and a dog, 39. Top of page.
The germination time for grass seed ranges from 5 to 30 days depending on the variety. It can be even longer than this in cooler temperatures. This is how long it will take to actually see the grass growing. Until this point, the seed, or the soil and mulch in contact with the seed, must stay moist.
A soil temperature range of 50 to 65 degrees Fahrenheit, with air temperature of 60 to 75 degrees, is ideal for germination of fescue. Fescue grass will take as little as seven days to germinate, but it can take as many as 21 days for maximum germination. Keep the seedbed moist for best results. Planting grass seed on a well-prepared site with good soil and drainage will produce a light green, thin lawn in a week.