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  • The X-chromosome was discovered by ______ in _____.Option: 1 Henking; LizardsOption: 2 Henk

The X-chromosome was discovered by ______ in _____.

Option: 1

Henking; Lizards


Option: 2

Henking; Humans


Option: 3

Henking; Insects


Option: 4

Henking; Drosophila


Answers (1)

best_answer

 

 

As we have discussed in Sex Determination -

  • Henking (1891) could trace a specific nuclear structure all through spermatogenesis in a few insects
  • Henking gave a name to this structure as the X body but he could not explain its significance.
  • Further investigations by other scientists led to the conclusion that the ‘X body’ of Henking was, in fact, a chromosome and that is why it was given the name X-chromosome. 
  • Due to the involvement of the X-chromosome in the determination of sex, it was designated to be the sex chromosome.

Hence, the correct answer is option c.

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