Explanation:
Russian-American biochemist Phoebus Levene (1869-1940), who had discovered ribose sugar in 1909 and deoxyribose sugar in 1929, suggested the structure of nucleic acid as a repeating tetramer. He called the phosphate - sugar - base unit a nucleotide.
The answer is mRNA. mRNA or mechanical RNA creates the framework of most ribosomes.
I think the correct answer from the choices listed above is option A. A property of the stem of a dicot plant is that the ground tissue is differentiated into pith and cortex. Vascular bundles are not arranged sporadically instead arranged in a ring. Also, cambium does exist between xylem and phloem.
Answer:
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D.<em> A formal method used to answer specific questions is Correct</em>
Explanation
In Simple terms, the scientific process is a way for scientists to study and learn things And to test new things, and Use the scientific method Steps Below
- Ask a question.
- Gather information and observe
- Make a hypothesis
- Experiment and test your hypothesis.
- Analyze your test results.
- Modify your hypothesis, if necessary.
- Present a conclusion.
- Retest
Therefore, The Answer is Option D.
