Drosophila has four pairs of chromosomes. How many linkage groups does it have?
Correct answer: C. Four
- A. Eight
- B. One less than the pairs of chromosomes
- C. Four
- D. One more than the pairs of chromosomes
Explanation
Number of linkage groups in an organism is equal to number of chromosomal pairs.Hence 4 chromosomal pairs means it has 4 linkage groups.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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