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Having additional or missing chromosomes can have a variety of effects, ranging from mild to fatal. For example, females missing an X chromosome (they would normal have two) suffer from a condition known as Turner syndrome, which can cause problems like stunted growth and infertility.
An example of a condition involving an additional chromosome is Trisomy 21, more commonly known as Down syndrome. In this instance, the individual has an extra 21st chromosome--they should have two, but instead have three. This tends to lead to growth defects and mental retardation.
More severe chromosome abnormalities can be fatal--some will result in miscarriage during fetal development.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoWell first of all the normal chromosome number in a somatic cell is 46, two pairs of 23 from each parent. In order for the individual to have an excess of this number would be the result of non-disjunction in gamete formation in one of the parents. This would result in gametes which instead of having 23 chromosomes, could potentially have more than this. Once combined with another gamete this would give rise to what is known as a polyploid individual. Humans that have more than the normal chromosal number are generally sterile. The reason for this is that since they have the incorrect chromosome number, the gametes they produce are non-functional. Furthermore, there are several different conditions, individuals can have a variety of different syndromes. Many include individuals with mental development problems. Individuals with extra X or Y chromosomes, which are the sex determining chromosomes, can have problems in the development of their sexual organs. Males with an extra X chromosome, develop enlarged breasts, and have small testis.
Anonymous
The person would have a genetic disorder. For example, Macrogaly, Dwarfism, Down Syndrome, and many more genetic dosorders.
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What happens if you have more or less chromosomes?
If you have one additional pair of CHROMOSOME 23, you have DOWN SYNDROME.If a person has fewer than 46 chromosomes, they will die. With more than 46 chromosomes, it depends on the chromosome type , but mostly disorders or syndromes will occur. Death is also a possibility in this case.AnswerThe condition wherein the number of chromosomes in a individual is more or less than the expected number of chromosomes is called aneuploidy.Examples include Down's Sydrome (three sets of chromosome 21), Klinefelter's syndrome (one extra X chromosome in males), Turner's syndrome (one X chromosome less in females), Edward syndrome (extra chromosome 18).
What happens for Dna to become more visible in the Cell?
The Chromosomes undergo Chromosomal Condensation.
What might be the effect of inheriting more than the normal number of chromosomes in a human?
The implications of too many or too few chromosomes from the normal chromosomes are birth defects. With too many chromosomes a child could have Down Syndrome. With too few chromosomes a child could have Turner Syndrome.
What happens during the first division of meiosis that does not happen in meiosis?
In Meiosis I: Separates homologous chromosomes In Meiosis II: Separates sister chromatids
A human cell may have more or less than 46 chromosomes as a result of nondisjunction a process in what?
chromosomes fail to separate during cell division
What happens if a person have more chromosomes?
If it had more chromosomes it will cause to down's syndrome
What happens if you have more or less chromosomes?
If you have one additional pair of CHROMOSOME 23, you have DOWN SYNDROME.If a person has fewer than 46 chromosomes, they will die. With more than 46 chromosomes, it depends on the chromosome type , but mostly disorders or syndromes will occur. Death is also a possibility in this case.AnswerThe condition wherein the number of chromosomes in a individual is more or less than the expected number of chromosomes is called aneuploidy.Examples include Down's Sydrome (three sets of chromosome 21), Klinefelter's syndrome (one extra X chromosome in males), Turner's syndrome (one X chromosome less in females), Edward syndrome (extra chromosome 18).
What happens for Dna to become more visible in the Cell?
The Chromosomes undergo Chromosomal Condensation.
What will happen if a human have more or less chromosomes?
If you have more or less chromosomes,you will have a rare disease called "anti-chromosome".it is also known as Down Syndrome.You may suffer from brain damage or cancer too.This is a very rare disease.
What might be the effect of inheriting more than the normal number of chromosomes in a human?
The implications of too many or too few chromosomes from the normal chromosomes are birth defects. With too many chromosomes a child could have Down Syndrome. With too few chromosomes a child could have Turner Syndrome.
What happens to the chromosomes when more cells are produced?
As a new baby grows, more cell must be made. This happens by the process of cell division. Each new cell has its own set of chromosomes carrying exactly the same information as the original fertilized cell.
What happens during the first division of meiosis that does not happen in meiosis?
In Meiosis I: Separates homologous chromosomes In Meiosis II: Separates sister chromatids
What happens if there are no more trees?
there will be less oxygen
What is the process call when a human cell may have more or less than 46 chromosomes as a result of nondisjunction?
Chromosomes fail to separate during cell division (its in the lesson)
A human cell may have more or less than 46 chromosomes as a result of nondisjunction a process in what?
chromosomes fail to separate during cell division
Some relatively simple eukaryotes such as the adder's tongue fern may have many more chromosomes than a more-complex eukarytoe such as a mammal what might this suggest about the size and organizatr?
Relatively simple organisms with more chromosomes might have smaller chromosomes containing less DNA. Also, some of the DNA in an organism's chromosomes may not carry information that is actually used by the organism.
Why is it important the the number of chromosomes is reduced when gametes are formed?
poo come out the bum
