Mental retardation occurs when a person cannot process and apply new information. In addition to a decrease in intelligence, social skills are also severely impaired. An intellectual disability can be congenital or acquired. An intellectual disability cannot be cured, however, depending on its severity, it can be treated to allow the affected person to lead … Mental Retardation: Causes, Symptoms & Treatment
Reproduction is part of both human and animal life and ensures the preservation of the species. Reproduction occurs when two people have a child together. What is reproduction? Procreation takes place when two people have a child together. Human procreation differs significantly from animal procreation in one characteristic: most animals do not feel the same … Reproduction: Function, Tasks, Role & Diseases
When they hear the word mutation, many people probably think first of hideously deformed creatures from horror movies and less of biology. Yet mutations play an important role everywhere in biology: for evolution, the emergence of new species, the emergence of new creatures, and ultimately in the emergence of many diseases. However, mutation takes place … Mutation: Function, Tasks, Role & Diseases
Atlanto-axial subluxation is a condition in which a specific joint is incompletely dislocated. The condition is also referred to by the common abbreviation AASL by medical professionals in some cases. The affected joint is usually the one located in the middle of the first and second vertebrae in the neck. The cause of atlanto-axial subluxation … Atlanto-axial Subluxation: Causes, Symptoms & Treatment
Fertilization describes the joining of the egg and the male sperm. Both nuclei fuse and combine a portion of the mother’s DNA with that of the father. After fertilization, the egg begins to divide and develop into a baby ready for birth within 9 months. What is fertilization? Fertilization describes the union of the egg … Fertilization: Function, Tasks, Role & Diseases
Neck fold measurement is a non-invasive examination performed at 12 to 14 weeks of pregnancy. A high-resolution ultrasound machine is used to determine the thickness of the neck fold of the unborn baby. This allows conclusions to be drawn about any genetic disorders. What is nuchal fold measurement? A high-resolution ultrasound machine is used to … Neck Wrinkle Measurement: Treatment, Effect & Risks
Noonan syndrome is a genetic developmental disorder. It is one of the most common genetically caused disorders and occurs equally in girls and boys. There is currently no curative therapy. Therefore, treatment for Noonan syndrome focuses on alleviating symptoms. What is Noonan syndrome? Noonan syndrome is a developmental disorder caused by a genetic defect. The … Noonan Syndrome: Causes, Symptoms & Treatment
Polydactyly describes the existence of more than five fingers on a hand or more than five toes on a foot. Through an autosomal dominant inheritance, the affected individual inherits this deformity from one parent. Polydactyly exists in various classifications and expressions. What is polydactyly? The term polydactyly is used in medicine to describe extra fingers … Polydactyly: Causes, Symptoms & Treatment
Eisenmenger syndrome is a congenital heart defect. As a result of pulmonary arterial hypertension (PAH), it causes severe lung and heart damage. Heart–lung transplantation is the only curative thrapy. In most cases, patients live only until the third decade of life. Eisenmenger syndrome Eisenmenger syndrome is also called Eisenmenger reaction or Eisenmenger complex. It is … Eisenmenger Syndrome: Causes, Symptoms & Treatment
Definition Meiosis is a special form of nuclear division and is also called maturity division. It contains two divisions, which turns a diploid mother cell into four haploid daughter cells. These daughter cells each contain a 1-chromatide chromosome and are not identical. These daughter cells are needed for sexual reproduction. Introduction In men, the germ … Meiosis
What is the difference to mitosis? Meiosis is very similar to mitosis in terms of the second meiotic division, but there are some differences between the two nuclear divisions. The result of the meiosis are germ cells with a simple set of chromosomes, which are suitable for sexual reproduction. In mitosis, identical daughter cells with … What is the difference to mitosis? | Meiosis
How does trisomy 21 occur? Trisomy 21 is a disease caused by the triple presence of the 21st chromosome. In healthy cells the chromosomes are duplicated, so that the human being has a total of 46 chromosomes. A patient with trisomy 21 has 47 chromosomes and suffers from Down syndrome. The triple presence of the … How does trisomy 21 occur? | Meiosis
