GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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forms different groups depending upon their relative distance
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form one linkage group
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will not form any linkage groups
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forms interactive group that affect the phenotype
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Detailed explanation-1: -All the genes located on the same chromosome form one linkage group. A linkage group can be explained as all the genes on a chromosome that moves as a single unit during the cell division. These genes do not tend to separate, until the crossing-over.
Detailed explanation-2: -Genes on separate chromosomes are never linked (center). But not all genes on a chromosome are linked. Genes that are farther away from each other are more likely to be separated during a process called homologous recombination (right).
Detailed explanation-3: -Genes that are located on the same chromosome are called linked genes. Linkage explains why certain characteristics are frequently inherited together.
Detailed explanation-4: -Genes that are present on a homologous pair of chromosomes are known as linkage groups and they inherit together except for crossing over. The number of linkage groups present in an organism corresponds to the haploid number of chromosomes in the organism.
Detailed explanation-5: -Genetics. There are twelve linkage groups corresponding to the haploid chromosome number.