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Q: Gene mutation in which only 1 condon is affected?
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A mutation that involves a single nucleotide is called a(an)?

Point Mutation- a type of gene mutation in which only a single nucleotide in a gene has been changed.


What is the role of heredity in myotonic dystrophy?

DM is inherited through autosomal dominant inheritance. This means that equal numbers of males and females are affected. It also means that only one gene in the pair needs to have the mutation in order for a person to be affected.


How many chromosome do you have when you have fragile x syndrome?

Fragile X syndrome is caused by a mutation that prevents the Fragile X mental retardation (Fmr-1) gene from being transcribed. This gene is located on the X chromosome (the sex chromosome). Since males only carry one of these chromosomes, they are twice as likely to be affected by the mutation than females.


How is progeria inherited?

According to the Progeria Research Foundation progeria is caused by a 'sporadic autosomal dominant' mutation.A mutation is a change in a gene.Sporadic means that the mutation occurs at random, and is not usually inherited from a parent.Autosomal means that the gene is located on one of the 22 pairs of non-sex chromosomes in the cell nucleus. In fact research has shown that the gene is on chromosome number one.Dominant means that you only need one copy of the gene to develop the disease. So one chromosome in the pair can have a normal gene and the other chromosome can have the mutant gene.


What are 3 types of mutation?

Three types of gene mutations are substitution, insertion, and deletion. Another gene mutation would be frame shift. All these mutations can cause deformities of the gene.


Which chromosome contains the gene for hemophilia?

The X chromosome. That's why it's more common in males; females have 2 X chromosomes, but males only have 1. So if a woman has the hemophilia mutation on one of her chromosomes, she probably won't be affected by it.


Blue Rubber Bleb Nevus Syndrome how does it inherited?

From Wikipedia: "the condition follows autosomal dominant inheritance. Dominant genetic disorders occur when only a single copy of an abnormal gene is necessary for the appearance of the disease. The abnormal gene can be inherited from either parent, or can be the result of a new mutation (gene change) in the affected individual. The risk of passing the abnormal gene from affected parent to offspring is 50% for each pregnancy regardless of the sex of the resulting child."


What form of Niemann Pick can be inherited?

All forms of NPD are inherited autosomal recessive disorders, requiring the presence of an inherited genetic mutation in only one copy of the gene responsible for the disease. Both males and females are affected equally.


Is progeria autosomal?

yes it is, only 1 mutation to the lmna gene is sufficent for someone to express traits regarding progeria


Does gene mutation affect metabolism?

yes and no,some mutations are only inward and affect inward organisms. Some are only outward like apperacance.


Why does a single gene mutate?

A single gene will mutate when DNA replication did not occur properly. It means that when replicating, the DNA only slipped up on a single gene when copying, causing a mutation. Mutations are accidental and are not done on purpose.


What process produces new alleles of a gene?

There isn't ONLY one way, except for genetic manipulation (from an injected virus which is NOT for immunization); the only other way is via reproduction.