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Genetic recombination occurs during meiosis cell division. As genes cross over during this process, scientists track the genes to study their linkage.
Not at a fundamental level, chromosomes are just the way that genes are clumped together. But on a practical level, chromosomes are what the cells manipulate during growth and (especially) during reproduction.
Yes. A protein produced by multiple genes are cased by fusion genes. Usually a protein is translated from a mRNA which is transcribed from a DNA. After transcription, RNA is rearranged by so-called RNA splicing in which some of short sequences are selected(Exon) or deleted(Intron). During the splicing two different genes can join together and it is called trans-splicing. After trans-splicing, mRNA is translated into a protein, so the protein has two genes. Most cases these fusion genes are oncogenes which cause Cancerous diseases.
linked genes
Learned
Genetic recombination occurs during meiosis cell division. As genes cross over during this process, scientists track the genes to study their linkage.
Not at a fundamental level, chromosomes are just the way that genes are clumped together. But on a practical level, chromosomes are what the cells manipulate during growth and (especially) during reproduction.
when genes cross over during meiosis, then split they from genes that differ.
Polygenic genes are usually dominant genes.
Yes. A protein produced by multiple genes are cased by fusion genes. Usually a protein is translated from a mRNA which is transcribed from a DNA. After transcription, RNA is rearranged by so-called RNA splicing in which some of short sequences are selected(Exon) or deleted(Intron). During the splicing two different genes can join together and it is called trans-splicing. After trans-splicing, mRNA is translated into a protein, so the protein has two genes. Most cases these fusion genes are oncogenes which cause Cancerous diseases.
the number of genes that usually determine a trait
linked genes
If the distance between two genes on a linkage map is 7 units, the cross over frequency between the two genes is still 7 units.
It is impossible to cross a cat with a dog. The genes and chromosomes are incompatible.
4 genetically different daughter cells
there are many other types of inheritance types such a polygenic, pleitrophy, codominance, etc. Also, some genes are linked (close together on the same chromosome) so that they stay usually together during crossing over ex: red hair and freckles, blonde hair and blue eyes