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Changes in a DNA sequence that affect an entire chromosome or multiple chromosomes?
Wiki User
∙ 13y ago
The DNA sequence of an entire chromosome is affected by a nitrogen base. A mutation is any mistake or change in the DNA sequence.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoChromosomal mutations
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What does it mean that the chromosomal aberration has a position effect?
Chromosomal aberrations occur when any of a number of structural changes in chromosomes. These changes result from abnormal divisions within the chromosomes, and may occur as a loss of the chromosome or the duplication of the chromosome.
What chromosomes can be affected by changes in chromosome numbers?
Any chromosome can be affected by aneuploidy. However, generally, the larger the chromosome, the larger the likelihood that the change in chromosome number will be fatal.
How do chromosome mutations affect an individual?
Chromosome mutations can result in changes in the number of chromosomes in a cell or changes in the structure of a chromosome. Unlike a gene mutation which alters a single gene or larger segment of DNA on a chromosome, chromosome mutations change and impact the entire chromosome.
What is the difference between gene and chromosomal mutation?
A gene mutation is a permanent change in the DNA sequence that makes up a gene. Mutations range in size from a single DNA building block (DNA base) to a large segment of a chromosome. A chromosomal mutation is a mutation involving a long segment of DNA, it is a any change in the structure or arrangement of the chromosomes. These mutations can involve deletions, insertions, or inversions of sections of DNA. In some cases, deleted sections may attach to other chromosomes, disrupting both the chromosomes that loses the DNA and the one that gains it.It is also referred to as a chromosomal rearrangement The differences between Gene mutation and Chromosome mutation are ; 1- Chromosome mutations involve changes in the structure of a chromosome OR the loss or gain of a chromosome while Gene mutations involve a change in the nucleotide -base sequence of a gene on a DNA molecule. 2- Chromosomal mutations are changes in the structure or the numbers of chromosomes (a gain or loss). Gene mutations involve changes in the nucleotide sequence of the DNA molecule. 3-A gene mutation is a permanent change in the DNA sequence that makes up a gene. Mutations range in size from a single DNA building block (DNA base) to a large segment of a chromosome while a chromosomal mutation is a mutation involving a long segment of DNA, it is a any change in the structure or arrangement of the chromosomes. These mutations can involve deletions, insertions, or inversions of sections of DNA. In some cases, deleted sections may attach to other chromosomes, disrupting both the chromosomes that loses the DNA and the one that gains it.It is also referred to as a chromosomal rearrangement 4-gene mutation is just a substitute in any old random nucleotide for any old random nucleotide chromosome mutation is missing of chromosome or +1 chromosome (down's syndrome).
Does the chromosome number changes throughout the human life cycle?
No a normal human will always have 46 chromosomes.
What chromosomes can be affected by changes in chromosome numbers?
Any chromosome can be affected by aneuploidy. However, generally, the larger the chromosome, the larger the likelihood that the change in chromosome number will be fatal.
What does it mean that the chromosomal aberration has a position effect?
Chromosomal aberrations occur when any of a number of structural changes in chromosomes. These changes result from abnormal divisions within the chromosomes, and may occur as a loss of the chromosome or the duplication of the chromosome.
How do chromosome mutations affect an individual?
Chromosome mutations can result in changes in the number of chromosomes in a cell or changes in the structure of a chromosome. Unlike a gene mutation which alters a single gene or larger segment of DNA on a chromosome, chromosome mutations change and impact the entire chromosome.
Does the chromosome number changes throughout the human life cycle?
No a normal human will always have 46 chromosomes.
What is the difference between gene and chromosomal mutation?
A gene mutation is a permanent change in the DNA sequence that makes up a gene. Mutations range in size from a single DNA building block (DNA base) to a large segment of a chromosome. A chromosomal mutation is a mutation involving a long segment of DNA, it is a any change in the structure or arrangement of the chromosomes. These mutations can involve deletions, insertions, or inversions of sections of DNA. In some cases, deleted sections may attach to other chromosomes, disrupting both the chromosomes that loses the DNA and the one that gains it.It is also referred to as a chromosomal rearrangement The differences between Gene mutation and Chromosome mutation are ; 1- Chromosome mutations involve changes in the structure of a chromosome OR the loss or gain of a chromosome while Gene mutations involve a change in the nucleotide -base sequence of a gene on a DNA molecule. 2- Chromosomal mutations are changes in the structure or the numbers of chromosomes (a gain or loss). Gene mutations involve changes in the nucleotide sequence of the DNA molecule. 3-A gene mutation is a permanent change in the DNA sequence that makes up a gene. Mutations range in size from a single DNA building block (DNA base) to a large segment of a chromosome while a chromosomal mutation is a mutation involving a long segment of DNA, it is a any change in the structure or arrangement of the chromosomes. These mutations can involve deletions, insertions, or inversions of sections of DNA. In some cases, deleted sections may attach to other chromosomes, disrupting both the chromosomes that loses the DNA and the one that gains it.It is also referred to as a chromosomal rearrangement 4-gene mutation is just a substitute in any old random nucleotide for any old random nucleotide chromosome mutation is missing of chromosome or +1 chromosome (down's syndrome).
What is the definition of chromosome mutation?
A chromosome is an organized structure of DNA and protein that is found in cells.In biology, mutations are changes to the nucleotide sequence of the genetic material of an organism.
Why are the majority of genes listed for chromosomes 11 and the other chromosomes associated with diseases?
The reason is that most of the genetic conditions are related to changes in particular genes on chromosome 11.
What mutation cause changes in the number of chromosome?
Aneuploidy mutation causes a change in the number of chromosomes. Aneuploidy occurs during cell division when the chromosomes do not separate properly resulting in a change in the number of chromosomes.
What are the genetic changes related of turner syndrome?
Having one X chromosome instead of the two X chromosomes other females have.
How is a karyotype created?
Karyotype: This is a method to detect defects in the chromosome. You make an image of the chromosomes and then order them according to number ( in human 23 pairs) and you match the 2 chromosomes of a pair. Now gross changes such as extra numbers of a pair or missing numbers. Using a method called FISH you can also give each individual chromosome a color. In this way you can detect translocations, meaning that a part of the chromosome has attached itself to another chromosome. Small changes such as deletions of a nucleotide are not detectable, for that you need to do a DNA analysis. It is used in medecine to detect the cause of certain syndromes and diseases mostly inborn, or to detect the changes in cancer cells that underlie the disease
What is an autosomal dominant disorder?
Chromosomes can be divided into autosomes and sex chromosomes. The sex chromosomes (eg X and Y in humans) carry genes concerned with sex determination. The remaining chromosomes are called autosomes. They carry genes which are the same in males and females. Aberrations are changes or mutations in the chromosomes. So autosomal aberrations are mutations in the non-sex chromosomes.
What are 2 possible end results of meiosis?
There could be 4 daughter cells with half the chromosomes as the original. Another outcome is crossing over in which one allele from one chromosome changes positions with an allele from another chromosome.
