Who performed classic experiments that supported the semiconservative model of DNA replication?

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#Question id: 8717

#XL - T Zoology

Molecular clocks are more reliable when ________.

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#Question id: 3797

#XL - Q Biochemistry

Throughout interphase, _______ are synthesized at a relatively constant rate, whereas _______ are synthesized only during the S phase.

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#Question id: 5091

#XL - T Zoology

In all vertebrate animals, development requires ________.

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#Question id: 34196

#XL - S Microbiology

Which of the following are reasons for the onset of the death phase?

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#Question id: 8925

#XL - R Botany

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

1. tetrapods

2. vertebrates

3. deuterostomes

4. amniotes

5. bilaterians