Which may be or is an RNA molecule?
A) AGCCTAC
B) GGGCCCA
C) GCCCUUA
D) AGCCTAC AND GGGCCCA
E) GGGCCCA AND GCCCUUA
To determine which option may be or is an RNA molecule, we need to understand the basic structure of RNA and compare it with the given options.
RNA (ribonucleic acid) is a molecule that plays a crucial role in various biological processes. It consists of a single strand of nucleotides that are made up of a sugar molecule (ribose), a phosphate group, and one of four nitrogenous bases: adenine (A), guanine (G), cytosine (C), and uracil (U).
Let's analyze each option:
A) AGCCTAC: This sequence contains the bases adenine (A), guanine (G), cytosine (C), and thymine (T). Thymine is not found in RNA, so this option is not an RNA molecule.
B) GGGCCCA: This sequence contains the bases guanine (G) and cytosine (C), which are found in RNA. However, it lacks the presence of adenine (A) and uracil (U). Therefore, this option is not an RNA molecule.
C) GCCCUUA: This sequence contains the bases guanine (G), cytosine (C), and adenine (A), which are all found in RNA. It also contains the base uracil (U), which is specific to RNA. Therefore, this option is a possible RNA molecule.
D) AGCCTAC AND GGGCCCA: This option combines option A and option B. Since option B is not an RNA molecule, the combination of the two options also cannot form an RNA molecule.
E) GGGCCCA AND GCCCUUA: This option combines option B and option C. As mentioned earlier, option B is not an RNA molecule. Therefore, the combination of the two options also cannot form an RNA molecule.
In summary, option C (GCCCUUA) may be an RNA molecule since it contains the appropriate bases (adenine, guanine, cytosine, and uracil) found in RNA.