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Can some times occur because of a mutation of a gene?
Yes, some diseases and conditions can occur due to mutations in specific genes. These mutations can lead to abnormal protein function or expression, resulting in a variety of health issues. For example, cystic fibrosis and sickle cell anemia are both caused by genetic mutations that affect normal physiological processes. Such mutations can be inherited or occur spontaneously.
How old do you have to be to get sickle cell anemia?
Sickle cell anemia is a genetic condition that is present at birth. It is inherited when a child receives two sickle cell genes, one from each parent. Therefore, individuals are born with sickle cell anemia rather than acquiring it at a certain age.
How often doese sickle cell anemia occur in the population?
Sickle cell anemia occurs most commonly in people of African, Mediterranean, Middle Eastern, and Indian descent. In the United States, it is estimated that about 1 in 365 African American births and 1 in 16,300 Hispanic Americans are affected by sickle cell anemia. These numbers may vary based on geographic region and population demographics.
Why sickle cell anemia resistance malaria?
Sickle cell anemia comes as the result of having two sickle cell chromosomes. One sickle cell chromosome makes people resistant to malaria. Unfortunately when people have two sickle cell chromosomes they can get sickle cell anemia. That makes it difficult for their blood to carry oxygen and under certain conditions makes their blood clump. The disease can be deadly. Drugs can help. It probably makes that person resistant to malaria. The sickle cell trait evolved in various places around the world where malaria is common such as Africa and Greece.
Is point mutation lethal?
Point mutations can be lethal if they occur in a critical gene or region of the genome that is essential for survival. However, not all point mutations are lethal, as some may have no effect or may even provide a survival advantage. The impact of a point mutation on an organism depends on its location and the specific gene affected.
How frequent does sickle cell occur in the us?
Sickle-Cell Anemia is fairly rare but serious; if you think you have thse symptoms, contact a doctor asap.
How old do you have to be to get sickle cell anemia?
Sickle cell anemia is a genetic condition that is present at birth. It is inherited when a child receives two sickle cell genes, one from each parent. Therefore, individuals are born with sickle cell anemia rather than acquiring it at a certain age.
Is sickle cell anemia substitution random or does it occur under the direction of molecules that direct protein synthesis?
no.people have to get sickle cell from there mother or father and if you have a friend that have sickle cell you can`t catch thank you for leting me tell you your answer!! bye
How often doese sickle cell anemia occur in the population?
Sickle cell anemia occurs most commonly in people of African, Mediterranean, Middle Eastern, and Indian descent. In the United States, it is estimated that about 1 in 365 African American births and 1 in 16,300 Hispanic Americans are affected by sickle cell anemia. These numbers may vary based on geographic region and population demographics.
Why sickle cell anemia resistance malaria?
Sickle cell anemia comes as the result of having two sickle cell chromosomes. One sickle cell chromosome makes people resistant to malaria. Unfortunately when people have two sickle cell chromosomes they can get sickle cell anemia. That makes it difficult for their blood to carry oxygen and under certain conditions makes their blood clump. The disease can be deadly. Drugs can help. It probably makes that person resistant to malaria. The sickle cell trait evolved in various places around the world where malaria is common such as Africa and Greece.
When does point mutation occur?
Bacic Answer:Point mutations occur when a single nucleotode is replaced with another nucleotide tide base. Insertion and come in this category.More Detail Answer:Point mutations occur when a single nucleotide is replaced with another nucleotide tide base. Insertion and come in this category. Error in the process of replication of DNA molecule results in point mutations. Sometimes heat of high level radiation cause the error in DNA replication. There are different effects of point mutations. if this type of mutation occurs in the sequence of DNA molecule or exon, then the protein sequence changes present in the gene. If the mutation occurs in the RNA effecting the codon of gene Sickle cell anemia is cause by the point mutations. Changes occur in the beta hemoglobin. it converts GAC sequence into GUG, Point mutation can be subdivided into three types:1) Nonsense mutations are the ones which code for the same amino acid.2) Misssense mutations occur in the genes which code for different amino acid.3)Silent mutations do not affect the function of the protein and code for different of same amino acid.
Mutations that occur at random are called?
Mutations that occur at random are called spontaneous mutations.
Is point mutation lethal?
Point mutations can be lethal if they occur in a critical gene or region of the genome that is essential for survival. However, not all point mutations are lethal, as some may have no effect or may even provide a survival advantage. The impact of a point mutation on an organism depends on its location and the specific gene affected.
Mutations in DNA often occur during replication During which phase of the cell cycle do such mutations occur?
Interphase
Which mutation is the most dangerous?
There is no definite answer to this question many types of mutations can cause death and I'd say that's the most dangerous effect of a mutation. Large Scale mutations, like deletions or amplifications, usually cause the most damage because they effect whole chromosomes. Small Scale mutations are usually less dangerous because they only effect one gene. The worst small scale mutations are insertions and deletions because they change the reading frame. In my personal opinion, harmful mutations that occur in the tumor suppressor genes are the most dangerous because they are what prevent the mutations in cell from being duplicated and without them working a mutated cell can replicate uncontrollably.
Why are point mutations harmless?
Not all are that harmless. Sickle cell disease is a point mutation. A missense mutation can be harmful, but substituting one purine base for another, or having the same type of amino acid, hydrophobic to hydrophobic for instance, made is not harmful.
Mutations that occur at one single nitrogen base are referred to as?
Mutations that occur at one single nitrogen base are referred to as a point mutation.
