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A metacentric chromosome has two equal arms because the centromere can be found in the median position. A telecontric chromosome, on the other hand, is like a straight rod. Its centromere is in the terminal position.
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∙ 9y ago
Wiki User
∙ 11y agotelocentric chromosomes are a type of chromosome like a straight rod with the centromere in terminal position.humans do not posses this type of chromosome
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What are chromosome types?
They are typed as telocentric acrocentric
Is chromosome Y an acrocentric chromosome?
A chromosome is determined to be metacentric, acrocentric or telocentric by the location of its centromere. Centromeres are the point of attachment of two sister chromatids. Sister chromatids are formed during DNA replication prior to mitosis or meiosis. Chromosome Y by itself (when it is not replicating and there are no sister chromatids) is not acrocentric, as it wouldn't even have a centromere location.
What are P and Q arms of a chromosome?
The p arm is the shorter arm of the chromosome. The q arm is the longer arm. For chromosomes which are metacentric, the arms tend to be the same length. For submetacentric, acrocentric, or telocentric, the p and q arms show clear differences in length- and thus are classified accordingly.
When DNA is copied to form chromosomes that have 2 sister chromatids this is called DNA .?
Each chromosome has two arms, labeled p (the shorter of the two) and q (the longer). The p arm is named for "petite" meaning 'small'; the q arm is named q simply because it follows p in the alphabet. (According to the NCBI, "q" refers to the French word "queue".) They can be Metacentric A chromosome is metacentric if its two arms are roughly equal in length. In some cases, a metacentric chromosome is formed by balanced Robertsonian translocation: the fusion of two acrocentric chromosomes to form one metacentric chromosome. Submetacentric If arms' lengths are unequal, the chromosome is said to be submetacentric Acrocentric If the p (short) arm is so short that is hard to observe, but still present, then the chromosome is acrocentric (The "acro-" in acrocentric refers to the Greek word for "peak."). In an acrocentric chromosome the p arm contains genetic material including repeated sequences such as nucleolar organizing regions, and can be translocated without significant harm, as in a balanced Robertsonian translocation. The domestic horse genome includes one metacentric chromosome that is homologous to two acrocentric chromosomes in the conspecific but undomesticated Przewalski's horse. This may reflect either fixation of a balanced Robertsonian translocation in domestic horses or, conversely, fixation of the fission of one metacentric chromosome into two acrocentric chromosomes in Przewalski's horses. A similar situation exists between the human and great ape genomes; in this case, because more species are extant, it is apparent that the evolutionary sequence is a reduction of two acrocentric chromosomes in the great apes to one metacentric chromosome in humans Telocentric A telocentric chromosome's centromere is located at the terminal end of the chromosome. Telomeres may extend from both ends of the chromosome. For example, all mouse chromosomes are telocentric Holocentric With holocentric chromosomes, the entire length of the chromosome acts as the centromere. Examples of this type of centromere can be found scattered throughout the plant and animal kingdoms with the most well known example being in the worm, Caenorhabditis elegans.
What does deletion chromosome consists of?
There is no 'deletion chromosome'. You mean chromosome deletion, and it is a phenomenon where a chromosome disappears from cell's genetic layout.
What are chromosome types?
They are typed as telocentric acrocentric
Are all of cow chromosomes telocentric?
I thought they were acrocentric (centromere positioned so close to the end of the chromosome that the short arm of the chromosome is not visible) rather than telocentric (centromere located completely at the terminal end of the chromosome).
How many acrocentric chromosomes does a mouse have?
Diploid chromosome number in standard laboratory mice (genus Mus) is 40: 19 autosomes and the X and Y sex chromosomes. Whereas the autosomes and the X Chromosome are telocentric (centromere at one end of the chromosome), the Y chromosome is acrocentric
What is metacemtricussubmetacentricus and telocentricus?
Metacemtric is chromosomes where the arms are equal. Submetricus is when the chromosome arms are unequal.A telocentric chromosomes are chromosomes centromere is located at the terminal end of the chromosome.Telomeres may extend from both ends of the chromosome.
Is chromosome Y an acrocentric chromosome?
A chromosome is determined to be metacentric, acrocentric or telocentric by the location of its centromere. Centromeres are the point of attachment of two sister chromatids. Sister chromatids are formed during DNA replication prior to mitosis or meiosis. Chromosome Y by itself (when it is not replicating and there are no sister chromatids) is not acrocentric, as it wouldn't even have a centromere location.
What are P and Q arms of a chromosome?
The p arm is the shorter arm of the chromosome. The q arm is the longer arm. For chromosomes which are metacentric, the arms tend to be the same length. For submetacentric, acrocentric, or telocentric, the p and q arms show clear differences in length- and thus are classified accordingly.
Humans have what kind of chromosomes?
4 basic types of chromosomes , metacentric , submetacentric , acrocentric and telocentric .
When DNA is copied to form chromosomes that have 2 sister chromatids this is called DNA .?
Each chromosome has two arms, labeled p (the shorter of the two) and q (the longer). The p arm is named for "petite" meaning 'small'; the q arm is named q simply because it follows p in the alphabet. (According to the NCBI, "q" refers to the French word "queue".) They can be Metacentric A chromosome is metacentric if its two arms are roughly equal in length. In some cases, a metacentric chromosome is formed by balanced Robertsonian translocation: the fusion of two acrocentric chromosomes to form one metacentric chromosome. Submetacentric If arms' lengths are unequal, the chromosome is said to be submetacentric Acrocentric If the p (short) arm is so short that is hard to observe, but still present, then the chromosome is acrocentric (The "acro-" in acrocentric refers to the Greek word for "peak."). In an acrocentric chromosome the p arm contains genetic material including repeated sequences such as nucleolar organizing regions, and can be translocated without significant harm, as in a balanced Robertsonian translocation. The domestic horse genome includes one metacentric chromosome that is homologous to two acrocentric chromosomes in the conspecific but undomesticated Przewalski's horse. This may reflect either fixation of a balanced Robertsonian translocation in domestic horses or, conversely, fixation of the fission of one metacentric chromosome into two acrocentric chromosomes in Przewalski's horses. A similar situation exists between the human and great ape genomes; in this case, because more species are extant, it is apparent that the evolutionary sequence is a reduction of two acrocentric chromosomes in the great apes to one metacentric chromosome in humans Telocentric A telocentric chromosome's centromere is located at the terminal end of the chromosome. Telomeres may extend from both ends of the chromosome. For example, all mouse chromosomes are telocentric Holocentric With holocentric chromosomes, the entire length of the chromosome acts as the centromere. Examples of this type of centromere can be found scattered throughout the plant and animal kingdoms with the most well known example being in the worm, Caenorhabditis elegans.
Is an x chromosome and chromosome the same thing?
An x chromosome is specifically a feminine chromosome. With a x and y chromosome its male, with a x and x, it is a female.
Which chromosome contains the sex gene?
chromosome 1 chromosome 1
What does deletion chromosome consists of?
There is no 'deletion chromosome'. You mean chromosome deletion, and it is a phenomenon where a chromosome disappears from cell's genetic layout.
What chromosome does tay-sachs disease affect?
chromosome 17 The correct answer is chromosome 15
