During metaphase 1 of meiosis of the cell cycle chromosomal translocation occur.
Explanation:
Chromosomal translocation is abnormal phenomenon when a fragment of chromosomes detaches and gets stick to the non-homologous chromosome in an individual. These are causative of aneuploid, cancer and infertility in organism.
In metaphase 1 of meiosis the chromosomes gets aligned on the metaphase plate. This leads to surety of equal number of chromosome in the cell.
Chromosomal translocation are seen in metaphase 1 because it is the phase of rearrangement of chromosomes where fragments easily gets attach to the other chromosome.
The pollutants in 1970 were the highest since recorded history and are declining steadily.
Its called osmosis and it only happens with water. now I'm just adding words to be able to post this. its moving down the concentration gradient.
Answer:
invertebrates. animal's without backbone.
verterbrates- animals with backbone