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Two chromosomes that have the same length centromere position and staining pattern are called?
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∙ 14y ago
Homologous Chromosomes
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∙ 14y ago
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What is a pair of replicated homologous chromosomes?
Those chromosomes having pairs of approximately the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci are known to be homologous chromosomes. One homologous chromosome is inherited from the organism's mother; the other from the organism's father. They are usually not identical, but carry the same type of information.
What is the difference between Homologous chromosomes or homologues?
Homologous chromosomes are chromosome pairs of the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci. One homologous chromosome is inherited from the organism's mother; the other from the organism's father.[1]They pair (synapse) during meiosis, or cell division that occurs as part of the creation of gametes.Each chromosome pair contains genes for the same biological features, such as eye color, at the same locations (loci) on the chromosome. Each pair, however, can contain the same allele (both alleles for blue eyes) or different alleles (one allele for blue eyes and one allele for brown eyes) for each feature.i answered my own question... =p
What can karyotypes determine?
Determine whether the chromosomes of an adult have an abnormality that can be passed on to a child.Determine whether a chromosome defect is preventing a woman from becoming pregnant or causing miscarriages.Determine whether a chromosome defect is present in a fetus. Karyotyping also may be done to determine whether chromosomal problems may have caused a fetus to be stillborn.Determine the cause of a baby's birth defects or disability.Help determine the appropriate treatment for some types of cancer.Identify the sex of a person by determining the presence of the Y chromosome. This may be done when a newborn's sex is not clear.http://www.webmd.com/baby/karyotype-test
Description of chromosomes?
Chromosomes are counted differently depending on the stage of the cell cycle. To count the number of chromosomes, one could count the number of functional centromere. The number of DNA molecules is usually the number of chromatids.
A karyotype shows chromosomes arranged by?
Karyotypes show chromosomes arranged by banding, pattern, size, and shape.
Two chromosomes that have the same lenght centromere position and staining pattern are called?
homologous chromosomes
A is a display of a cell's chromosomes which have been stained and organized into matching pairs based on their length centromere position and staining pattern?
This sort of organized arrangement of chromosomal staining patterns is called a karyotype
What are 'homologous pairs' of chromosomes?
It means they are the same.Homologous chromosomes (also called homologs or homologues) are chromosome pairs of approximately the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci. One homologous chromosome is inherited from the organism's mother; the other from the organism's father.
What is another name for a chromosome?
Homologous chromosomes are chromosome pairs of the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci. One homologous chromosome is inherited from the organism's mother; the other from the organism's father.[1]
What does a pair of homologous mean?
Those chromosomes having pairs of approximately the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci are known to be homologous chromosomes. One homologous chromosome is inherited from the organism's mother; the other from the organism's father. They are usually not identical, but carry the same type of information.
What are homologs?
Homologs are another term for homologous chromosomes.They are a pair of chromosomes of the same length, centromere position, and staining pattern that posses genes for the same characters at corresponding loci.
What is a pair of replicated homologous chromosomes?
Those chromosomes having pairs of approximately the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci are known to be homologous chromosomes. One homologous chromosome is inherited from the organism's mother; the other from the organism's father. They are usually not identical, but carry the same type of information.
How can one determine the sex of a chromosome?
In a karyotype chromosomes are distinguished by number, size and centromere position. This is obtained by certain staining methods. The G method (geimsa staining) indicating the banding pattern of the chromosome by light and dark staining of the bands which are unique to each chromosome or by the Q method (quinicrine fluorescence) where bands indicate fluorescently that are Adenine and Thiamine rich. Other methods are the R method (reverse banding) where chromosomes are first heated before being geimsa stained and indicate in reverse to that of the G method, and the C method (centromeric heterochromatin) involving the staining of the centromere.
How are karyotypes contructed?
A cell karyotype is produced by looking at chromosomes through a light microscope. A karyotype is produced by factoring in the length of individual chromosomes under the microscope, as well as their banding pattern, position of centromeres, and other physical characteristics.
When do homologues pair?
A homologous pair is a pair of chromosomes that exist in diploid cells. One of the pair you inherit from your father, the other from your mother. A human has 22 pairs of homologous chromosomes (these do not include sex chromosomes). They are the same length and shape. They also share the same genes. The sequences of the genes may be different, which is what results in genetic variation, but the genes are the same.
In what ways are homologous chromosomes similar?
They are similar in size shape , position of centromere and genes .Homologous chromosomes are similar in the pattern they are stained, their lengths, and most importantly they have genes of the for a certain characteristics in the same area.
What are the features used to identify homologous pairs of chromosomes?
they derive from a common ancestor. a homology is a "structural correspondence".Homology among proteins and DNA is often concluded on the basis of sequence similarity, especially in bioinformatics. For example, in general, if two or more genes have highly similar DNA sequences, it is likely that they are homologous. But sequence similarity may also arise without common ancestry: short sequences may be similar by chance, and sequences may be similar because both were selected to bind to a particular protein, such as a transcription factor. Such sequences are similar but not homologous.
