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crossing over can unlink genes because when crossing over occurs it a portion of one chromosome is replaced by a region of a homologous chromosome and during this the alleles that were presently on that linked gene could possibly be separated
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Gene maps are based on?
the frequencies of crossing over between genes
Does crossing over affect one or many genes?
Crossing over can effect on more then one gene i.e. at least two as in crossing over the genes of homologus chromatin get interchanged so it effect at least two genes and can effect or change more then two genes depend upon the linking and crossing over capability
What is the exchange of genes between homologous pairs of chromosomes?
homologous chromosomes exchange alleles during crossing over.
Compare any differences in the appearance of genes on chromosomes in gamete cells when crossing over occurs and when it does not occur?
The genes are different because crossing over causes some of the genes on the homologous pair to shuffle, creating variation.
Genetic mixing of genes that result from crossing-over?
Recombination is the genetic mixing of genes that result from crossing over.
Gene maps are based on?
the frequencies of crossing over between genes
What is a sentence for crossing over?
Crossing over is the exchanging of genes in a homologous pair.
What is a sentence for crossing-over?
Crossing over is the exchanging of genes in a homologous pair.
Does crossing over affect one or many genes?
Crossing over can effect on more then one gene i.e. at least two as in crossing over the genes of homologus chromatin get interchanged so it effect at least two genes and can effect or change more then two genes depend upon the linking and crossing over capability
What is the exchange of genes between homologous pairs of chromosomes?
homologous chromosomes exchange alleles during crossing over.
How does crossing over incrase phenotypicvariation in a population?
crossing over allows new genes to be made by the crossing over itself or by mutations that occur in the genes as crossing over occurs. since the phenotype is the physical appearance of the gene, the crossing over can change the genotype which can change the phenotype.
When crossing-over occurs what genes stay together?
linked genes
How does crossing over explain genetic variability?
Normally the genes on a chromosome are inherited as a complete set. If you get that chromosome you get all the genes on it. In the process of crossing over similar sections of DNA are swapped from one chromosome to another. This means that different pairings of genes will be inherited together going forward.
Why does the frequency of the cross overs give information about the relative locations of genes?
its simple the crossing over of genes ha a location looc for a chromosomes with a different chromatid you have the location
Compare any differences in the appearance of genes on chromosomes in gamete cells when crossing over occurs and when it does not occur?
The genes are different because crossing over causes some of the genes on the homologous pair to shuffle, creating variation.
Genetic mixing of genes that result from crossing-over?
Recombination is the genetic mixing of genes that result from crossing over.
What results from the process of crossing over during prophase I?
During crossing-over, chromosomes of a homologous pair breaks and exchange genes.
