Genes situated on the same chromosome that tend to be inherited together are said to be
Correct answer: B. linked
- A. allelic
- B. linked
- C. homologous
- D. codominant
Explanation
All the genes on one chromosome form a linkage group, and the number of linkage groups in a species equals its haploid chromosome number. Alleles are the alternative forms of one gene occupying the same locus on homologous chromosomes, which is a different relationship altogether. Linkage reduces the proportion of recombinant offspring below the Mendelian expectation.
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About Gene Linkage and Crossing Over
Linked genes lie on the same chromosome and tend to pass together, unlike genes that assort independently on different chromosomes. The topic connects linkage with homologous pairing, crossing over during prophase I of meiosis, recombinant and parental offspring, and recombination frequency as an estimate of gene distance.
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