3 years ago

What scientific breakthrough was made in the 1940s and 1950s?

Biology

1 answer:

erastova [34]3 years ago

3 0

A. the dna

DNA your welcome

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I have attached an image that might help you understand the concept a bit better.

I hope this helps! I'm happy to answer any other questions you might have :)

[Image sourced from: http://www.qsstudy.com/biology/define-crossing-importance]

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