Yes they can. Such changes are called mutations. They can be caused by the environment, e.g. by various radiations and chemicals. DNA is copied every time we make a new cell, and as it is an extremely complex process errors can occur, and these too are mutations.
Genes and chromosome numbers vary from animal to animal
By definition, mutation is the change in the DNA structure and/or genes of a plant or animal. Often, radiation can cause this change. Other (less often) times, a chemical can cause this same effect. Because this is a change in DNA and/or genes, this trait can (and possibly will) be carried on through the animal/plant's offspring unlike, say, a broken wing or dyed fur would.
the answer to this is thAT WHEN other animals have sex they reproduce and have other baby animals that inherit the same genes. but this animal can also change its genes over time when mating with another animal that isnt its species
Damage genes
Hox genes are responsible for controlling the development of body segments in animals. Changes in the expression of Hox genes can lead to modifications in body segment patterning, leading to the diverse body plans seen in animals. Therefore, variations in Hox gene expression among different species contribute to the diversity of animal body plans.
Its called mutation. It sometimes happens when something is exposed to radiation too long
dBecause the animal is adapted to its environment. :)
The phenotype of an animal typically does not depend on the animal's genotype.
of course, it how the animal appears or act
The animal with the most genes is theorized to be the marbled lungfish, which has around 132,000 genes. This is significantly more than the average number of genes in most animals, which typically range from 20,000 to 40,000.
no as eyes are among the many things of which an animal posses which will never change as it is part of all of their genes. if an animal is born without eyes it is either a deformity at birth of had human interference.
No, cloned animals do not lose their genes. The genetic material in a cloned animal is identical to the original animal it was cloned from. The process of cloning involves replicating the DNA of the original animal to create an exact genetic copy.