Why do chromosomes come in homologous chromosome pairs?

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Basically we are all made up from 50% mum and 50% dad. Chromosomes are a condensed version of our DNA; these chromosomes (DNA) contain the genes that tell our body what to do during development and throughout our lives. We have 23 chromosome pairs in total we get one chromosome from the mother and one from the father. The chromosomes are called homologous since each chromosome pair will contain the same genes on it but the genes will not necessarily code for the same thing. For example a chromosome will have the genes for eye color on it and since we have one from the mother and father we will have a pair of chromosomes with the gene with eye color on it. This would be a homologous chromosome pair, however one gene may say blue eyes the other may say brown eyes. The genes are still the same however each color would be a different allele for the gene.
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How do Members of homologous pairs of chromosomes differ?

They have the same length and gene locus but differ in terms of alleles.. An allele is a form of a gene, differing from other alleles of the gene by a few bases at most and occupying the same locus as the other alleles of that gene.. The gene locus is the position of a gene on a chromosome.. Hope ( Full Answer )

What are homologous chromosomes?

homologous chromosomes are chromosomes that are paired during meiosis. They consists of four chromatids. One pair comes from the father and the other, from the mother.The homologous chromosomes are the same size, their centromeres are in the same postition, they have the same number of genes, arrang ( Full Answer )

What are homologous chromosome?

Answer . chromosomes in a biological cell that pair during meiosis, or alternatively, non-identical chromosomes that contain information for the same biological features and contain the same genes at the same loci but possibly different genetic information at those genes. For example, two chromos ( Full Answer )

What is a homologous chromosome?

This are chromosomes that have exactly the same length that contain the same gene but those genes have different alleles.

What are a pair of homologous chromosomes in meiosis called?

synapsis (if you need proof then go to http://www.sumanasinc.com/webcontent/animations/content/meiosis.html)(Click to Animation, then go to Step-Through, then go to the 3rd slide of 11 and there is your proof.) The pair of homologous chromosomes is called a tetrad and synapsis is the process.

What is Homologous Chromosomes?

There huge chromosomes there like a tomato or you could say an apple as well but not those small apples

What is the pairing of homologous chromosomes in meiosis?

Homologous chromosomes are pairs of chromosomes, one from the mother and one from the father, in which each homolog has the same genes at the same loci along their lengths. During prophase I in meiosis, the two chromosomes in each homologous pair line up next to each other. This pairing process is c ( Full Answer )

What does a pair of homologous chromosomes 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 orga ( Full Answer )

Why does Chromosomes occur in homologous pairs in diploid cell?

you need one chromosome from one parent and one from the other parent. These homologous pairs each have the same genes but different alleles. For instance, one may code for black hair while the other codes for brown hair. You need both to be present in order to have both the parents traits.

Where do chromosome pairs come from?

Humans have 23 pairs of chromosomes. Males have 1 X chro. and 1 Y chro. in a pair. Females just have 2 X's. The first 22 pairs are evenly spaced between male and female, but the 23rd depicts which gender you are. Chromosomes are an important part of your DNA.

Homologous pairs of chromosomes are?

Pairs of chromosomes with approximately the same size and centromere position, with the exception of XY pairs. You get one from the maternal side and one from the paternal side.

What keeps homologous pairs of chromosomes together before they separate?

Cohesin. a protein complex that forms a ring around the pair. It is composed of four subunits, called a globular head, and a twisted chain. 3 of these globular heads connected togethor (diagramaically) forms a triangle. (the four subunits of each chain are the red dots.) My university ( Full Answer )

What are the features used to identify homologous pairs of chromosomes?

\n \n Banding pattern – the size and location of Giemsa bands on chromosomes make each chromosome pair unique \n Centromere position – centromeres are regions in chromosomes that appear as a constriction. They have a special role in the separation of chromosomes into daughter cells ( Full Answer )

What homologous pairs of chromosomes are?

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 ( Full Answer )

Why is the 23rd pair of chromosomes not always homologous?

The 23rd pair of chromosomes are the sex chromosomes. In female humans, both sex chromosomes are homologous, and characterized as XX. In male humans, one sex chromosome is an X chromosome and the other is a much smaller, nonhomologous Y chromosome, and is characterized as XY.

How can you tell if 2 chromosomes were a homologous pair?

Homologues are chromosome pairs of the same length, centromere position, and staining pattern with genes for the same characteristics at corresponding locations. One homologous chromosome is inherited from the organism's mother, the other from the organism's father during sexual reproduction. The cr ( Full Answer )