A short piece of DNA 30 base pairs long was analyzed to find the number of nucleotide bases in each of the polynucleotide strands. Some of the results are shown below. How many nucleotides containing guanine were present in strand 1?
Correct answer: C. 4
- A. 2
- B. 3
- C. 4
- D. 6
Explanation
The number of adenine base pairs on one strand is equal to thymine base pairs on the other strand and the cytosine base pairs are equal to the guanine base pairs on the other strand. According to the given condition, there are 30 base pairs thus;
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Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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