Moderate

Number of pairs of autosomes in humans in:

Correct answer: D. 22

  • A. 23
  • B. 24
  • C. 21
  • D. 22

Explanation

Humans have 22 pairs of autosomes, which are the non-sex chromosomes. These autosomes are numbered from 1 to 22 and carry genetic information for various traits, functions, and characteristics of an individual.

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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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