In which type of linkage, chromosomes do not undergo any breakage during gametogenesis and no independent assortment occurs between the pairs of genes ?
Answers
Explanation:
Two genes close together on the same chromosome tend to be inherited together and are said to be linked.
Linked genes can be separated by recombination in which homologous chromosomes exchange genetic information during meiosis; this results in parental, or nonrecombinant genotypes, as well as a smaller proportion of recombinant genotypes.
Geneticists can use the amount of recombination between genes to estimate the distance between them on a chromosome
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Answer:
In linked genes
Explanation:
Genes or characters or traits which are linked and are situated on the same chromosome, cannot separate during gametes formation or production and hence cannot assort independently'
When the linked traits (or genes) are inherited together over two or more generations, the linkage is said to be complete. This phenomenon is very rare and is found in male Drosophila. This occurs when the chromosomes do not undergo any random breaks during gametogenesis.
When linked genes tend to split on certain occasions during heredity, the phenomenon is known as incomplete linkage. This occurs during crossover during gametogenesis. Genes located on homologous segments of sex chromosomes exhibit incomplete association. Linkage can be autosomal linkage if the linked genes are on autosomal chromosomes or it can be sex linked if linked genes are on sex chromosomes.
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