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How many pairs of homologous chromosomes would be in an offspring?
Wiki User
∙ 7y ago
Since a somatic cell (body cell) has 2n sets of chromosomes, and a gamete has n sets of chromosomes, then in this case: 18 = n, so 2n = 36. This organism has 36 chromosomes in its somatic cells.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThere are 44 left after the 2 sex cells there are 22 homologeous pairs of chromosomes.
Wiki User
∙ 13y agoif an organism has 18 chromosome they must have nine homologous pairs because each chromosome pairs up with another one to form a homologue
Wiki User
∙ 11y agoIf an organism's diploid chromosome number is 18, how many different possible combinations of
Wiki User
∙ 10y agoIf an organism has 24 chromosomes, it has 12 pairs.Every living organism has a set pair of chromosomes. For example a dog has 39 while a human has 23.
Wiki User
∙ 11y ago18
Bonnie Arbuckle
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How can a human with 47 chromosomes be produced?
This occurs due to nondisjunction, in which one or more homologous pairs of chromosomes do not separate during anaphase I, or sister chromatids do not separate properly during anaphase II of meiosis. The resulting daughter cells (gametes) will have either 22 or 24 chromosomes. If the gamete with 22 chromosomes unites with a normal gamete with 23 chromosomes, the offspring will have 45 chromosomes (23 + 22). If the gamete with 24 chromosomes unites with a normal gamete, the offspring will have 47 chromosomes (23 + 24). These are usually lethal conditions.
Why don't sex cells have homologous pairs of chromosomes?
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.
Why do homologous chromosomes cross over?
Homologous chromosomes cross over to start genetic differences. If this didn't happen, then the cells would be too similar to each other. (｡-_-｡) that is all
What are the differences between homologous chromosomes and chromosomes?
Homologous chromosomes are a set of chromosome pairs, one set maternal and the other paternal, that pair up during meiosis, the production of reproductive cells. The pairs have the same genes in the same locations, though once spread out the different pairs segregate out. the biggest way that these chromosomes change up is by exchanging lengths of the material.
How many chromosomes would be in a zygote if the bird has 30 chromosomes?
A zygote is a fertilized egg cell, so it is diploid and thus has a full set of DNA. If the adult has 30 pairs of chromosomes, the zygote would have 30 pairs. If there are 30 chromosomes, then the zygote will have 60 (30 from the mother and 30 from the father). It comes down to whether you meant individual chromosomes or pairs of chromosomes.
How would you know if 2 chromosomes were homologous pairs?
Therefore when two chromosomes of the exact structure exist, they are able to pair together to form homologous chromosomes
What would happen if homologous chromosomes did not pair in prophase 1?
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.
What cell has homologous chromosomes?
A somatic cell (body cell) is a cell that would have homologous chromosomes.
How can a human with 47 chromosomes be produced?
This occurs due to nondisjunction, in which one or more homologous pairs of chromosomes do not separate during anaphase I, or sister chromatids do not separate properly during anaphase II of meiosis. The resulting daughter cells (gametes) will have either 22 or 24 chromosomes. If the gamete with 22 chromosomes unites with a normal gamete with 23 chromosomes, the offspring will have 45 chromosomes (23 + 22). If the gamete with 24 chromosomes unites with a normal gamete, the offspring will have 47 chromosomes (23 + 24). These are usually lethal conditions.
What would happen if homologous chromosomes paired with non-homologous chromosomes in meiosis 1 instead of the matching homolog?
good question!
Why don't sex cells have homologous pairs of chromosomes?
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.
Why do homologous chromosomes cross over?
Homologous chromosomes cross over to start genetic differences. If this didn't happen, then the cells would be too similar to each other. (｡-_-｡) that is all
Do homologous chromosomes always have identical alleles?
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.
How are genes aligned on homologous chromosomes?
The genes are aligned between the pole, since it's involving homologous chromosomes, where all characteristics of chromosomes are the same, it kind of makes sense that identical genes would be aligned between the poles.
What are the differences between homologous chromosomes and chromosomes?
Homologous chromosomes are a set of chromosome pairs, one set maternal and the other paternal, that pair up during meiosis, the production of reproductive cells. The pairs have the same genes in the same locations, though once spread out the different pairs segregate out. the biggest way that these chromosomes change up is by exchanging lengths of the material.
How would the karyotype of an organism that reproduces asexualy differ from a human karyotype?
Characteristics. Also, another difference between karyotype and karyogram is that while karyotype describes the number and appearance of chromosomes and includes their length, banding pattern, and centromere position, karyogram contains chromosomes arranged in an appropriate order.Jul
How many chromosomes would be in an offspring?
In humans : 46.
