Can you explain what a recessive disease is and what causes it??
Answers: Bevan, keep in mind that you generally have two good copies of every gene,one from your mother and one from your father. In many cases, your cells can function fine as long as at least one copy is ok. So, even if you inherit a mutated copy from one parent, you are usually still ok, since the normal copy encodes enough normal protein to get the job done. The disease is recessive because you have to have two bad mutated copies of the gene before you see ill effects. Keep in mind that by mutated , here I am referring to a gene that makes either no protein, or a non-functional protein *that does not interfere with the function of the normal protein.*
However, there are cases of diseases where one bad copy can cause a disease.
Let us say a mutation causes a protein to be made that actually interferes with the normal function of the cell. Maybe a mutation causes too much of the
protein to be made, or a mutation causes the protein to fold in a way that it acts like the proverbial monkey wrench thrown into a machine. This would be
a case of a disease caused by a dominant mutation, since the presence of the
other, normal copy of the gene cannot overcome the problem created by themutant copy.
In purely statistical terms, there are many more possibilities to have a mutation that knocks out the function of a protein, than there are ways to have a mutation that causes a dominant, crazy-acting protein. So, more diseases arise from recessive mutations than from dominant mutations.
Paul Mahoney, PhD
recessive disease is genetic i believe. basically it circulates your family blood line, sometimes it shows up, sometimes it doesnt. if a child has recessive genes alone then the disease will most likely express themselves. if a child has the recessive gene but also carry a dominant gene, then the dominant gene will suppress the recessive disease from expressing. in this case then that person will just be a carrier of the disease. hope this helps
Recessive: A condition that appears only in individuals who have received two copies of a mutant gene, one copy from each parent. The individuals with a double dose of the mutated gene are called homozygotes. Their parents, each with a single dose of the mutated gene, appear normal and are called heterozygotes, or gene carriers.
There are two types of recessive diseases -- autosomal recessive and X-linked recessive -- that describe different patterns of inheritance.
The opposite of recessive is dominant. See also Autosomal recessive; Dominant; and X-linked recessive.
However, there are cases of diseases where one bad copy can cause a disease.
Let us say a mutation causes a protein to be made that actually interferes with the normal function of the cell. Maybe a mutation causes too much of the
protein to be made, or a mutation causes the protein to fold in a way that it acts like the proverbial monkey wrench thrown into a machine. This would be
a case of a disease caused by a dominant mutation, since the presence of the
other, normal copy of the gene cannot overcome the problem created by themutant copy.
In purely statistical terms, there are many more possibilities to have a mutation that knocks out the function of a protein, than there are ways to have a mutation that causes a dominant, crazy-acting protein. So, more diseases arise from recessive mutations than from dominant mutations.
Paul Mahoney, PhD
recessive disease is genetic i believe. basically it circulates your family blood line, sometimes it shows up, sometimes it doesnt. if a child has recessive genes alone then the disease will most likely express themselves. if a child has the recessive gene but also carry a dominant gene, then the dominant gene will suppress the recessive disease from expressing. in this case then that person will just be a carrier of the disease. hope this helps
Recessive: A condition that appears only in individuals who have received two copies of a mutant gene, one copy from each parent. The individuals with a double dose of the mutated gene are called homozygotes. Their parents, each with a single dose of the mutated gene, appear normal and are called heterozygotes, or gene carriers.
There are two types of recessive diseases -- autosomal recessive and X-linked recessive -- that describe different patterns of inheritance.
The opposite of recessive is dominant. See also Autosomal recessive; Dominant; and X-linked recessive.
More questions & answers:
- Probability?
- Is down syndrome sex linked/recessive/or dominant?
- Name a homozygous recessive genetic disorder? due tomorrow?
- Is Spina Bifida a Recessive or Dominant Trait?
- What are the genetics of Trisomy 21? (autosomal, sex-linked, recessive, dominant, etc)?
- Recessive genetic disorder?
- What recessive X-linked disorder runs in the english royal family?
- Is angelman syndrome dominant or recessive and is it autosomal or sex-linked?
- What is the difference between dominant and recessive?
- What determines whether an allele is dominant, recessive, or codominant?
- What is the difference between homozygous dominant, homozygous recessive, and heterozygous?
25% chance of having a girl with it, 25% chance of having a boy with it ...50% total chance of having a child with it.
25% chance of having a girl that is a carrier.
25% chance of ha
25% chance of having a girl that is a carrier.
25% chance of ha
none of the above. Down syndrome occurs when the creation of sperm or egg cells (meiosis) does not occur properly. an extra chromosome (#21) is inadvertently left inside the cell. you and I have two o
I agree. Do your own homework.
Spina Bifida is caused by not having enough folic acid in the mother's diet during pregnancy. Chances can be decreased greatly by taking a folic acid supplement prior to conception and during pregnanc
What are the genetic changes related to Down syndrome?
Down syndrome is related to chromosome 21.
Most cases of Down syndrome result from trisomy 21, which means each cell in the bod
Down syndrome is related to chromosome 21.
Most cases of Down syndrome result from trisomy 21, which means each cell in the bod
Please do not quote my answers... it has been a while since AP Bio!! Recesive genetic disorders just mean that both parents have to be carriers of a disease for a child to have it!! If i am not mistak
It's believed to be porphyria - the malady that affected poor King George III - but nowadays they can test for it at birth and administer an appropriate medication to stop it developing.
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Still studying the genetic link to angelman's syndrome. From the research I have done, and who knows how much information on the internet is correct but I believe it is a sex-linked gene.
dominate traits can be expressed in the heterozygous gene state. This means if you have one dominant and one recessive gene the dominant will prevail. ie one blue and one brown, brown will prevail.
the genes of your parents.
Let
R= Dominant trait
r= Recessive trait
Homozygous dominant= RR
Homozygous recessive= rr
Heterozygous= Rr
Heterozygous individuals will have both traits, but its ph
R= Dominant trait
r= Recessive trait
Homozygous dominant= RR
Homozygous recessive= rr
Heterozygous= Rr
Heterozygous individuals will have both traits, but its ph