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Does the number of chromosomes correspond to the size of an organism?
Wiki User
∙ 12y ago
No. Chromsomes are subject to breakage and fusion over evolutionary time, which can result in an increase or decrease in chromosome number, and the forces behind that are independent of an organism's size.
Wiki User
∙ 16y ago
Wiki User
∙ 16y agoChromosome pairs are numbered according to the desending order of their length. That is the longest pair gets the number 1. Humans' DNA consists of 23 pairs of chromosomes. 22 of them are called autosomes. The 23rd pair is sex chromosome pair.
Wiki User
∙ 13y agoThere is no relationship between the number of chromosomes in an organism and its complexity. Humans are considered to be the most complex species with a total of 46 chromosomes. However, a horse has 64 chromosomes and a fern 1,262. A horse is far larger than a human and a fern much smaller than a human. The number of chromosomes within an organism doesn't represent its complexity over another organism.
Wiki User
∙ 12y agoNo. All nuclei in every cell in every organism are roughly the same size, no matter the number of chromosomes.
Since all corresponding cells (neural cells in elephants and neural cells in humans, egg cells in chickens and egg cells in squirrels) are the same size, the size of the organism depends on the NUMBER of cells, not the size. Thus, the number of chromosomes has no effect on the size of the cell, and thus no effect on the organism's size.
Wiki User
∙ 11y agostarting with the first chromosome they start off bigger containing more information as the progress they get smaller.
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What are chromosomes with same size and shape?
The chromosomes with the same gene content, size, and shape in diploid organism is called homologous chromosomes. The set of chromosome each came from maternal and paternal chromosome.
When the cells of an organism increase in number size or volume this is called?
development
Why do larger organisms not need more chromosomes?
There is no correlation between number of chromosomes and size, nor is there a correlation between number chromosomes or genes and complexity. More chromosomes or genes aren't needed to maintain a larger animal because there is a copy of the genome within each cell.
Homologous chromosomes is terms of the number of genes and the type of genes they have?
Homologous chromosomes are pairs of chromosomes (one from the female and one from the male), each of which contains genes which correspond to the genes on the other chromosome in the pair. For example, if a chromosome contains a gene for eye color, the corresponding chromosome will also have a gene for eye color in the same place.
What is a karytype?
The number, form, and size of the chromosomes in a cell/individual. It can also be used to describe a photomicrograph of chromosomes arranged according to a standard classification.
What is the complete set of chromosomes of an organism arranged and displayed in pairs and ordered by size?
This is called the organism's karyotype.
What are chromosomes with same size and shape?
The chromosomes with the same gene content, size, and shape in diploid organism is called homologous chromosomes. The set of chromosome each came from maternal and paternal chromosome.
What is showed in a Karyotype?
The number, size, shape and size of the chromosomes
What is a rat karyotype?
chromosomes having centromere of same size and position
How do organisms grow?
Organisms grow by cell division or mitosis which causes increase in number of cells , and then by increase in size of cell .
What is a chromosomal defect?
A abnormality in the size, shape, or number of chromosomes.
Some relatively simple eukaryotes such as the adder's tongue fern may have many more chromosomes than a more-complex eukarytoe such as a mammal what might this suggest about the size and organizatr?
Relatively simple organisms with more chromosomes might have smaller chromosomes containing less DNA. Also, some of the DNA in an organism's chromosomes may not carry information that is actually used by the organism.
What is another word for correspond in size?
Fit.
When the cells of an organism increase in number size or volume this is called?
development
What might this suggest about the size and organization of chromosomes in different species?
they contain the same number of chromosome's :)
Why do larger organisms not need more chromosomes?
There is no correlation between number of chromosomes and size, nor is there a correlation between number chromosomes or genes and complexity. More chromosomes or genes aren't needed to maintain a larger animal because there is a copy of the genome within each cell.
Homologous chromosomes is terms of the number of genes and the type of genes they have?
Homologous chromosomes are pairs of chromosomes (one from the female and one from the male), each of which contains genes which correspond to the genes on the other chromosome in the pair. For example, if a chromosome contains a gene for eye color, the corresponding chromosome will also have a gene for eye color in the same place.
