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Multiple Choice
Which of the following statements regarding gene linkage is correct?
A
Gene linkage is only observed in prokaryotic organisms.
B
Gene linkage can be broken by mitosis.
C
Gene linkage occurs when genes are located close together on the same chromosome.
D
Gene linkage results in independent assortment of alleles during meiosis.
Verified step by step guidance
1
Understand the concept of gene linkage: Gene linkage refers to the tendency of genes that are located close to each other on the same chromosome to be inherited together during meiosis. This is because they are less likely to be separated by recombination events.
Evaluate the first statement: 'Gene linkage is only observed in prokaryotic organisms.' This statement is incorrect because gene linkage is observed in eukaryotic organisms, where chromosomes are linear and genes can be linked.
Evaluate the second statement: 'Gene linkage can be broken by mitosis.' This statement is incorrect because mitosis is a process of cell division that results in two identical daughter cells and does not involve recombination or separation of linked genes.
Evaluate the third statement: 'Gene linkage occurs when genes are located close together on the same chromosome.' This statement is correct as it accurately describes the concept of gene linkage.
Evaluate the fourth statement: 'Gene linkage results in independent assortment of alleles during meiosis.' This statement is incorrect because gene linkage actually results in the non-independent assortment of alleles, as linked genes tend to be inherited together.