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Breast cancer, as all cancers, is highly complex and caused by mutations in numerous genes - each cancer, however, will likely have different gene mutations.
However, there are some genes which are commonly mutated in a small proportion of breast cancers (a mutation in these genes shows increased susceptibility in a number of families) - the most commonly referred to are BRCA1 and BRCA2.
BRCA1 is found on 17q21 (chromosome 17, q arm, band 21) and BRCA2 on 13q12.
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What various types of genetic material in order from simplest to most complex?
nucleus → chromosome → gene
What is BRCA2 6174 del T?
brca2 is a gene associated with breast and other types of cancer. 6174 del t is the identification of a particular mutation of the brca2 gene. The 6174 del t mutation occurs with a relative high frequency in ashkenazic Jewish populations and is associated with familial pancreatic cancer, among other cancers.
What chromosome is the HBB gene on?
chromosome 11
Gene A occurs on chromosome 5 gene B on chromosome 21 Therefore these two parts of a chromosome cannot be what?
alleles
A segment of chromosome responsible for a particular characteristic?
DNA or genens these are the segments of the chromosome.
What various types of genetic material in order from simplest to most complex?
nucleus → chromosome → gene
List these in order from smallest to largest chromosome gene cell?
Smallest to largest: Gene (a place on a chromosome); chromosome (there are 46 in human cells); and DNA (because it accounts for all the genetic material in a cell).
What is BRCA2 6174 del T?
brca2 is a gene associated with breast and other types of cancer. 6174 del t is the identification of a particular mutation of the brca2 gene. The 6174 del t mutation occurs with a relative high frequency in ashkenazic Jewish populations and is associated with familial pancreatic cancer, among other cancers.
Gene is it the same as a chromosome?
no, the gene is not actually the chromosome but a part of chormosome...
What is the sry gene?
The SRY gene is a gene on the Y chromosome required for the development of testes. It stands for Sex determining Region on Y chromosome.
What chromosome is the HBB gene on?
chromosome 11
Gene A occurs on chromosome 5 gene B on chromosome 21 Therefore these two parts of a chromosome cannot be what?
alleles
Which chromosome contains the sex gene?
chromosome 1 chromosome 1
Whats a change in gene or chromosome?
A change in a gene or chromosome is called a: Mutation
What does it mean to say that a gene is linked to a chromosome?
This means that the gene is physically located on that particular chromosome.
What is a sex linked gene?
It is a gene located on either sex chromosome (X or Y chromosome).
What gene is sex-linked?
It is a gene located on either sex chromosome (X or Y chromosome).
