DNA mutations are the only way evolution can make changes in life for evolution to be true.
Yet, there are no genetic mutations ever found that make a life better for a species.
There is however an enormous number of mutations that makes life worse.
This is a list of only some of the diseases caused by genetic disorders, and this list is only
humans.  
Aceruloplasminemia
Achondrogenesis type II
Achondroplasia
Acute intermittent porphyria
Adenylosuccinate lyase deficiency
Adrenoleukodystrophy
ALA dehydratase deficiency
Alexander disease
Alkaptonuria
Alpha-1 antitrypsin deficiency
Alstrom syndrome
Alzheimer disease
Amelogenesis Imperfecta
Amyotrophic lateral sclerosis
Androgen insensitivity syndrome
Anemia
Angelman syndrome
Apert syndrome
Ataxia-telangiectasia
Beare-Stevenson cutis gyrata syndrome
Benjamin syndrome
Beta thalassemia
Biotinidase deficiency
Bladder cancer
Bloom syndrome
Bone diseases
Breast cancer
Birt-Hogg-Dubé syndrome
CADASIL
CGD Chronic Granulomatous Disorder
Camptomelic dysplasia
Canavan disease
Cancer
Celiac Disease
Charcot-Marie-Tooth disease
Cockayne syndrome
Coffin-Lowry syndrome
Collagenopathy, types II and XI
Colorectal Cancer
Congenital erythropoietic porphyria
Congenital heart disease
Congenital hypothyroidism
Connective tissue disease
Cowden syndrome
Cri du chat
Crohn’s disease, fibrostenosing
Crouzon syndrome
Crouzonodermoskeletal syndrome
Degenerative nerve diseases
Developmental disabilities
DiGeorge syndrome
Distal spinal muscular atrophy, type V
Down syndrome
Dwarfism
Ehlers-Danlos syndrome
Erythropoietic protoporphyria
Fabry disease
Facial injuries and disorders
factor V Leiden thrombophilia
Familial adenomatous polyposis
Familial dysautonomia
FG syndrome
Fragile X syndrome
Friedreich’s ataxia
G6PD deficiency
Galactosemia
Gaucher disease
Genetic brain disorders
Harlequin Ichthyosis
Head and brain malformations
Hearing disorders and deafness
Hearing problems in children
Hemochromatosis
Hemophilia
Hepatoerythropoietic porphyria
Hereditary coproporphyria
Hereditary Multiple Exostoses
Hereditary nonpolyposis colorectal cancer
Homocystinuria
Huntington’s disease
Hyperoxaluria, primary
Hyperphenylalaninemia
Hypochondrogenesis
Hypochondroplasia
Incontinentia Pigmenti
Infantile-onset ascending hereditary spastic paralysis
Infertility
Jackson-Weiss syndrome
Joubert syndrome
Klinefelter syndrome
Kniest dysplasia
Krabbe disease
Lesch-Nyhan syndrome
Leukodystrophies
Li-Fraumeni syndrome
Lipoprotein lipase deficiency, familial
Male genital disorders
Marfan syndrome
McCune-Albright syndrome
McLeod syndrome
Mediterranean fever, familial
Menkes syndrome
Metabolic disorders
Methemoglobinemia#beta-globin type
Methylmalonic acidemia
Micro syndrome
Microcephaly
Movement disorders
Mowat-Wilson syndrome
Mucopolysaccharidosis (MPS I)
Muenke syndrome
Muscular dystrophy
Muscular dystrophy, Duchenne and Becker type
Myotonic dystrophy
Neurofibromatosis type I
Neurofibromatosis type II
Neurologic diseases
Neuromuscular disorders
Nonsyndromic deafness
Noonan syndrome
Osteogenesis imperfecta
Otospondylomegaepiphyseal dysplasia
Pantothenate kinase-associated neurodegeneration
Patau Syndrome (Trisomy 13)
Pendred syndrome
Peutz-Jeghers syndrome
Pfeiffer syndrome
Phenylketonuria
Porphyria
Prader-Willi syndrome
Primary pulmonary hypertension
Prion disease
Propionic acidemia
Protein C deficiency
Protein S deficiency
Pseudo-Gaucher disease
Pseudoxanthoma elasticum
Retinal disorders
Retinoblastoma
Rett syndrome
Rubinstein-Taybi syndrome
Severe achondroplasia with developmental delay and acanthosis nigrans
Sickle cell anemia
Skin pigmentation disorders
Smith Lemli Opitz Syndrome
Speech and communication disorders
Spinal-bulbar muscular atrophy
Spinal muscular atrophy
Spinocerebellar ataxia
Spondyloepimetaphyseal dysplasia, Strudwick type
Spondyloepiphyseal dysplasia congenita
Stickler syndrome
Tay-Sachs disease
Tetrahydrobiopterin deficiency
Thanatophoric dysplasia
Thiamine-responsive megaloblastic anemia with diabetes mellitus and sensorineural deafness
Thyroid disease Tourette’s Syndrome
Treacher Collins syndrome
Triple X syndrome
Tuberous sclerosis
Turner syndrome
Usher syndrome
Variegate porphyria
Von Hippel-Lindau disease
Waardenburg syndrome
Weissenbacher-Zweymüller syndrome
Wilson disease
Wolf-Hirschhorn syndrome
Xeroderma Pigmentosum
X-linked severe combined immunodeficiency

X-linked sideroblastic anemia