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.
The pre-sprout phase is most critical. You must maintain a strong commitment to watering new grass seed. The germination time for grass seed ranges from 10 to 15 days depending on the variety. This is how long it will take to actually see the grass growing. It can be even longer in cooler temperatures. Until this point, the seed, or the soil, must stay moist.