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Question

According to the chromosomal theory of inheritance, the hereditary unit which occurs in pair is known as

A
DNA
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B
RNA
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C
Proteins
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D
Genes
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Solution

The correct option is D Genes
  • The chromosomal theory of inheritance states that there are certain factors that are passed on from one generation to the next in pairs.
  • These factors were later described as the genes. There are two alleles of genes that are present on the homologous chromosomes.
  • One of the alleles is obtained from the mother and the other allele is obtained from the father. The genes were considered as the heredity unit.

Thus, the correct answer is option D.

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