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.
Concerning how long does grass seed take to grow, if the conditions are good and the variety of grass used is of the type that grows fast, within a weekâs time the result may be a lush green patch in the lawn.While it may not be properly grown yet the visible result may take about two to three weeks.The normal duration at which the seed of the grass germinates is between 6 to 10 days after the seed has been planted. However it can also take from minimum 4 days to maximum forty days.The climate condition during which the seed is sown is also very essential for the seeds to germinate faster and to grow.he seed of the grass germinates faster with the availability of proper light, water and nutrition of soil. Excess of heat, over irrigation and over-use of pesticides and insecticides may kill the germination. A temperate and warm condition is most favorable for no matter how long does grass seed take to grow.