Something called nondisjunction can cause too many chromosomes. Most result in the death of the fetus.
Polyploidy is the condition of having multiple complete sets of chromosomes in a cell or organism. This can occur in plants and some animals, and often leads to increased genetic diversity and potentially altered physical characteristics in the organism.
Elephants have a total of 56 chromosomes. This includes 2 sex chromosomes and 54 autosomes.
An ape typically has 48 chromosomes.
Unlike animals, plants are a lot more varied in the number of chromosomes they can have. 'Anywhere between 2 and at least 12(?)' is a decent starting assumption.
If the fertilized egg does not have a normal number of chromosomes, this can leads to problems with the child later on. An example is Down syndrome, which is caused when chromosome 21 does not split properly.
Both can carry many different kinds of diseases.
I think there are diseases that we have not found yet
2
Polyploidy
Many kinds of insect pests destroy forests by eating the shoots and spreading diseases.
Obesity.
down syndrome
I believe it is Meiosis that produces new cells with each having half as many chromosomes as the original parent cells.
46 Chromosomes 22 Homologous Pairs in men (& X + Y), 23 in women (X+X is homologous) 22 Pairs of autosomes and 1 pair of sex chromosomes
thier are many, if curious ask you're doctor or GP(England)
They were exposed for the first time to some kinds of sicknesses. This then spread.
Viruses cause the common cold, AIDS, herpes, meningitis, smallpox (currently extinct in the wild), influenza, and many other diseases.