Oak Anthracnose. Anthracnose is a general term used to describe diseases that result in a wide range of symptoms including leaf spots, blotches or distortion, defoliation, shoot blight, twig cankers and dieback on many different deciduous trees and shrubs. In most cases, anthracnose does not cause permanent damage to established trees.
1 Germ cells have only half the number of chromosomes as a diploid cell Â­ one of each pair-and are termed haploid (n) . 2  In a human egg or sperm, there are 23 chromosomes, one of which is an X or Y. 3  The number of chromosomes is reduced from 46 to 23 during the process of meiosis.
W â¦ hen an egg cell is produced, whether it receives the mother's or father's copy of any given chromosome is determined randomly. This alone gives over 8 million possible combinations. Then the chromosomes swap pieces before dividing, randomizing the DNA even more. So no two egg cells have the exact same DNA. And this is just for the egg cells in one person.