0
No, only switches traits inside the crossed over segments
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Gene maps are based on?
the frequencies of crossing over between genes
New genetic combinations result from?
crossing over. sexual reproduction. mutations.
What is the process that further increases the number of different genotypes that can appear in an offspring?
Gene duplication. Mutations that lead to duplications actually increase the number of genes in a genome. When an organism has two copies of a gene, one can perform its function while the other is free to accumulate mutations to the point that it may take on a new and advantageous function.
Gene shuffling includes the independent movement of chromosomes during meiosis as well as?
Crossing-over
Genetic mixing of genes that result from crossing-over?
Recombination is the genetic mixing of genes that result from crossing over.
During meiosis crossing-over gene exchange between chromosomes may occur Crossing-over usually results in?
The result of crossing over is genetic diversity. More specifically, it is a hybrid chromosome with a unique pattern of genetic material. Does this answer help?
Gene maps are based on?
the frequencies of crossing over between genes
New genetic combinations result from?
crossing over. sexual reproduction. mutations.
Is it true that Gene maps are produced by monitoring the frequency of crossing-over between genes?
It is true that gene maps are produced by monitoring the frequency of the crossing-over between genes. Their changes and adaptations are use in the construction of a gene map.
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.
What is the process that further increases the number of different genotypes that can appear in an offspring?
Gene duplication. Mutations that lead to duplications actually increase the number of genes in a genome. When an organism has two copies of a gene, one can perform its function while the other is free to accumulate mutations to the point that it may take on a new and advantageous function.
Genetic mixing of genes that result from crossing-over?
Recombination is the genetic mixing of genes that result from crossing over.
Gene shuffling includes the independent movement of chromosomes during meiosis as well as?
Crossing-over
Explain how crossing over can unlink genes?
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
How does sexual reproduction result in a larger variety of possible gene combinations?
Basically, in three ways. Independent orientation of the chromosomes in meiosis. Crossing over in chromosomes in meiosis. Random fertilization; the random mathching of any sperm/egg combination in fertilization.
Why is it pointless for sister chromatids to crossover?
Crossing-over occurs between non-sister chromatids, since (prior to crossing-over) sister chromatids are genetically identical (i.e. one is a duplication of the other). Therefore, if sister chromatids underwent a cross-over, no genetic variation would occur.
When gene are linked the reason a few of the recombinant genotypes still occur in the offspring is because of?
Crossing over.
