Why do chromosomes come in homologous chromosome pairs?
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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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… that helped!. 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 that helped! ( Full Answer )
Synapsis is the pairing of two homologous chromosomes that occursduring meiosis in prophase I or prometaphase I.
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…ed in the same order. the main definition is Chromosomes that have the same length, appearance and copies of genes, although the alleles may differ ( Full Answer )
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…omes may have genes encoding eye color, but one may code for brown eyes, the other for blue. Homologous chromosomes are pairs of chromosomes that synapse (pair) during meiosis. Sections of DNA can sometimes cross over between homologous pairs. One homologous chromosome is inherited from the organism's mother and the other from the father. They are usually not identical. ( Full Answer )
This are chromosomes that have exactly the same length that contain the same gene but those genes have different alleles.
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.
Homologous chromosomes do not pair during mitosis. they only pair in meiosis to form tetrads.
There huge chromosomes there like a tomato or you could say an apple as well but not those small apples
The exceptions to the rule that every chromosome is part of ahomologous pair are the gametes. Gametes are eggs and sperm, andeach cell has only 23 chromosomes, which form pairs in the zygoteafter fertilization.
\nA chromosome pair consists of an identical pair with the same genes and same biological features. A homologous chromosome pair consists of a non-identical pair with the same biological features and contain the same genes at the same loci but each have different alleles (genetic information) at tho…se genes. ( Full Answer )
Homologous pairs of chromosomes carry the same genes. Thesechromosomes are found in the same loci and contain the samecentromere position.
There are 44 left after the 2 sex cells there are 22 homologeous pairs of chromosomes.
Homologous chromosomes are identified by two main characteristics viz, size and position of the centromere. Homologous chromosomes always have the same size. According to the position of the centromere, they may be acrocentric, metacentric, sub-metacentric and telocentric.
same traits the same traits as each other. Different chromosome pairs code for different traits than other chromosome pairs do though. Only homologous chromosomes (chromosome pairs) code for the same trait as each other.
The homologous chromosomes are separated and one of each is carried to each daughter cell.
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…alled synapsis , and the resulting homologous pair is called a bivalent in reference to the two chromosomes or a tetrad in reference to the four sister chromatids involved. During synapsis, pieces of the homologous chromosomes may exchange places, so that each chromosome of a homologous pair contains alleles from both parents. This process is called crossing over .. ( Full Answer )
if an organism has 18 chromosome they must have nine homologous pairs because each chromosome pairs up with another one to form a homologue
Paired homologous chromosomes are found at the spindle equatorduring metaphase. During metaphase the chromosomes line up on theplate and attach to the fully formed spindle.
Its either the same traits or DNA. i tried the other 2 and they were wrong. good luck : )
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…nism's father. They are usually not identical, but carry the same type of information. ( Full Answer )
A human gamete does not have any pairs of homologous chromosomes. A single human gamete contains 23 chromosomes, or a half set. None of these chromosomes are homologous with each other.
well it is form in a two pair image where they are side by side
yes they are arranged in pairs and they are arrainged from the biggest to smallest hope this help:)
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.
Chromosomes normally occur as homologous pairs in a diploid cell.These refers to matching pairs of chromosomes which are found inthe cell.
The process where the chromosomes form the homologous pairs iscalled the prophase. The homologous chromosomes pair usually formthe synapses during this process.
The pairing of homologous chromosomes during prophase 1 is calledcrossing over. The chromosomes make a copy of themselves. The 4cells can now twist together and exchange pieces.
Homologous chromosomes are different because the genetic materialcomes from two different parents. Chromosomes have 23 pairs ofgenes that come from the parents.
in a homologous chromosome there are two chromosomes ( a chromosome and a sister chromosome)
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.
if homologous chromosomes didn't pair up in Prophase 1 the DNA between the parents isn't distributed equally to the offspring, or variation would not occur.
In humans (males and females) there are 46 chromosomes. This meansthere are 23 homologous pairs.
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.
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 …is researching into the exact mechanism that is why there is not yet widely spread pictures of it. This complex keeps the homologous chromosome pairs togethor after replication. It also promotes the attatchment on a spindle and repairs an damage from recombination. It is broken open at anaphase. ( Full Answer )
\n \n Banding pattern â the size and location of Giemsa bands on chromosomes make each chromosome pair unique \n Centromere position â centromeres are regions in chromosomes that appear as a constriction. They have a special role in the separation of chromosomes into daughter cells …during mitosis cell division ( Full Answer )
They encode the same information (except for the few differences between your mother and your father).
In the metaphase stage of mitosis. They line up in the equatorial plate and spindle fibers from the centrioles attach to their kinetochores
the pair is made up of one chromosome from a female and another from a male
The X (female) and Y (male) chromosomes. A person with XX is female. A person with XY is male.
Sex cells do not have homologous chromosomes because the homologous chromosomes seperate during the production of sex cells.
Autosomes are the non-sex chromosomes. The 23rd pair is the sex chromosomes. Autosomal homologous pairs are all shaped like Xs. The sex chromosomes, as we know, can either be XX or XYType your answer here...
A pair of homologous chromosomes can be found within any regular diploid cell. Basically, this is any cell in the human body that is not egg or sperm.
Yes! Of course its very cronoloigcally falso that they are the same, Many people do think so but no. Its not.-Hope it helps ......................................................,-Jesus-
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. ( Full Answer )
Therefore when two chromosomes of the exact structure exist, theyare able to pair together to form homologous chromosomes
Humans have 46 chromosomes (or 23 pairs). One pair is known as the sex chromosomes X and Y. The remaining 22 pairs that do not determine the gender of offspring are the homologous chromosomes
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.
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…ossing over, or synapse, occurs during meiosis, which is the process of exchanging genetic material for recessive or dominant genes between the two homologous chromosomes for better genetic combinations in the formation of gamets. ( Full Answer )
A diploid human cell has 23 pairs of homologous chromosomes. The exception is the male sex chromosomes, which are not exactly homologous, but are treated as such during meiosis.
Moths and butterflies have a varying number of chromosomal pairs,depending on geographic location and species. The number can be aslow as 52 and as high as 320.