Charles Darwin's evolutionary theory enables us to establish cause and effect in biology, including those associated with a person's overall character. The evolutionary biologist Theodosius Dobzhansky wrote: "Nothing in Biology Makes Sense Except in the Light of Evolution". It's a well-known statement on the evolutionary theory and their implications in all spheres of biology
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
20 percent.
Since one strand is 20, the opposite that would connect with it (Thymine) would have the same amount so the total would be 100.
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Answer:
One strand of all the isolated DNA double helices would have C-14 labeled thymidine.
Explanation:
DNA replication is a semiconservative process which means that each newly formed DNA double helix contains one parental strand and one newly formed strand.
Since the medium has thymidine labeled with C-14, all the newly formed strands formed during DNA replication would have radio-labeled thymidine.
Therefore, by the end of 20 minutes, one out of two strands on each double helix would have labeled thymidine nucleotides.
