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.
Comments. Submit. The amount of time needed for grass seed to germinate depends on the type of grass planted. Bluegrass is visible after 20 to 30 days. Bermuda grass sprouts after 10 to 30 days.Rye grass can grow in as little as five days.omments. Submit. The amount of time needed for grass seed to germinate depends on the type of grass planted. Bluegrass is visible after 20 to 30 days. Bermuda grass sprouts after 10 to 30 days.