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.
It will take about three to four weeks (depending on weather conditions) for the grass seed to germinate. The reason why thatch has been appearing on your lawn is due to the length of the grass and you will need to mow your turf shorter-approximately half to one inch.t will take about three to four weeks (depending on weather conditions) for the grass seed to germinate. The reason why thatch has been appearing on your lawn is due to the length of the grass and you will need to mow your turf shorter-approximately half to one inch.