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How does the order of genes in one member of a chromosome pair compare to the order of genes on the other chrososme?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
What is it called when a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction?
an inversion
What results if a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction?
an inversion.
How does the significance of meiosis maintained the chromosome number?
No. Meiosis results in halving of chromosome number. Chromosome number after one round of meiosis is half that of original chromosome number. Generally, meiosis takes place during gamete formation. So when two gametes fuse, they lead to restoration of the chromosome number. Hence chromosome number can be maintained in sexually reproducing organisms.
How is chromosome gene linkage and exception to the law of independent assortment?
Independent assortment can take place only if genes are located on different homologous chromosomes .Mendel was lucky because 7 traits he studied were located on different homologous chromosomes .Bateson 1906 noted first deviation from Mendles law and it was explained by Morgan . Linked genes can't assort independently as they are transfered en block .
How is a linkage map related to crossovers that take place during meiosis?
The more space there is between two genes on the same chromosome, the more likely it is that crossing over will take place between those two genes. Thus, by studying lots of examples of meiosis with crossing over, it is possible to make a map of the chromosome, with the genes (and the relative distances between them) laid out along it.
How is a linkage map related to cross overs that take place during meiosis?
The more space there is between two genes on the same chromosome, the more likely it is that crossing over will take place between those two genes. Thus, by studying lots of examples of meiosis with crossing over, it is possible to make a map of the chromosome, with the genes (and the relative distances between them) laid out along it.
How is linkage map related to cross overs that take place during meiosis?
The more space there is between two genes on the same chromosome, the more likely it is that crossing over will take place between those two genes. Thus, by studying lots of examples of meiosis with crossing over, it is possible to make a map of the chromosome, with the genes (and the relative distances between them) laid out along it.
How is a linkage related to a cross-overs that take place during meiosis?
The more space there is between two genes on the same chromosome, the more likely it is that crossing over will take place between those two genes. Thus, by studying lots of examples of meiosis with crossing over, it is possible to make a map of the chromosome, with the genes (and the relative distances between them) laid out along it.
How does the order of genes in one member of a chromosome pair compare to the order of genes on the other chrososme?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
The change in the position of a gene on a chromosome is called a?
Transposons are the ' jumping genes ' that move from one place to another in the genome.
Homologous chromosomes is terms of the number of genes and the type of genes they have?
Homologous chromosomes are pairs of chromosomes (one from the female and one from the male), each of which contains genes which correspond to the genes on the other chromosome in the pair. For example, if a chromosome contains a gene for eye color, the corresponding chromosome will also have a gene for eye color in the same place.
What are mixed chromosome twins?
A twin gene is called an Allele - One of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Do the continental plates remain in one place?
No, both the continental and oceanic plates are always moving. Moving slowly, but always moving.
When chromosome pairs separate into different sex cells does the alleles genes stay together?
During meiosis exchange of chromatid takes place by crossing over among the homologous chromosomes and chromatids of two chromosomes facing each other are involved in crossing over. Thus 50% of the gametes formed have new arrangement of alleles and rest 50% remain like those of parent cells.
What results if a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction?
an inversion.
What is it called when a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction?
an inversion
