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no they don't necessarily have to have the same alleles but they have the same genes. Homozygous chromosomes would have the same allele for a particular gene and heterozygous chromosomes would have different alleles for a particular gene.
Wiki User
∙ 11y ago
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∙ 15y agoHomologus chromosomes have same number of genes because these are special kind of chromosomes which have everything same from colour to their shape. The only thing they have different is that they dont have the same genetic information.
Wiki User
∙ 11y agoHomologous chromosomes are those chromosomes that occur in pairs. The chromosomes are homologous doe not mean that they are identical. For example, there is a pronounced difference between the pair in sex chromosome.
Wiki User
∙ 11y agoAre homologous chromosomes identical to each other? I'd have to say, "Yes", because "Homologous chromosomes are two chromosomes- one inherited from the mother, one from the father- that have the same length and general appearance. More importantly, these chromosomes have copies of the same genes, although the two copies may differ." -McDougal Littell, Biology, by Stephen Nowicki.
Hope this helps!
Wiki User
∙ 13y agoHomologous chromosomes are similar but not identical.
Wiki User
∙ 10y agoNo, homologous chromsomes are not genetically identical.
This is because in sexually reproducting animals - one is inherited from each parent - so they are different.
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∙ 12y agoyes, except for genetic information.
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∙ 12y agoyes they do
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∙ 10y agoNope
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∙ 11y agoyes
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Chromosomes that contain genes that will determine the sex of an individual are called?
XX=female XY=male the male's second allele determines the sex (gender) of the offspring. If it is a Y, congratulations you're having a boy. If it is an X, you're having a girl. The sex linked genes are always carried along the X chromosome. The female's chromosome is always XX.
Why are identical twins always the same gender?
fraternal twins have two different chromosomes
As a result of mitosis the two new cells have?
After Mitosis, you have a single cell with one nucleus, but inside that nucleus, you have two identical sets of chromosomes. . Mitosis is almost always immediately followed by cytokinesis, which is the process of dividing the nuclei (each with one set of chromosomes), cytoplasm, organelles, and cell membrane into two nearly identical cells.
How many divisions will a cell with 16 chromosomes have during meiosis?
Even if there was that kind of sex cell, I don't think it would survive! Sex cells ALWAYS have 46 chromosomes. At the end of meiosis, as long as there are no mistakes, each sperm or egg cell would have 23 chromosomes.
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.
What does alleles always come in?
Alleles are generally inherited in pairs, except for alleles on the X and Y sex chromosomes in males.
Why does a puppy always have two alleles for every trait?
Because of homologous pairs of chromosomes. One chromosome from the puppies mother and one from the father make up the 78 chromosomes of dogs. One allele on the mom chromosome and one on the dad chromosome, even if there are more than two alleles for the trait only two will be represented in the genome.
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.
What type of chromosome always carry gene for the same trait at the same location on both chromosome?
homologous chromosomes
Which gender is homozygous?
Homozygous means "the same egg." That refers to identical twins. Identical twins are always the same gender since they have the same chromosomes.
Chromosomes that contain genes that will determine the sex of an individual are called?
XX=female XY=male the male's second allele determines the sex (gender) of the offspring. If it is a Y, congratulations you're having a boy. If it is an X, you're having a girl. The sex linked genes are always carried along the X chromosome. The female's chromosome is always XX.
Why can fraternal twins different genders but identical are always the same gender?
fraternal twins have two different chromosomes
Why are identical twins always the same gender?
fraternal twins have two different chromosomes
What are the chromosomes called following this duplication?
they always start with genetics and end with biology. Never underestimate the power of science. It always comes with god tidings. So dont give up fair maiden always believe in your dreams and soon enough you will find your answer.
Why Can fraternal twins be different gender but identical twins are always the same gender?
fraternal twins have two different chromosomes
As a result of mitosis the two new cells have?
After Mitosis, you have a single cell with one nucleus, but inside that nucleus, you have two identical sets of chromosomes. . Mitosis is almost always immediately followed by cytokinesis, which is the process of dividing the nuclei (each with one set of chromosomes), cytoplasm, organelles, and cell membrane into two nearly identical cells.
What alleles always produce and effect?
Dominant alleles.
