Question

28S rRNA is associated with the structure of
A) 60S
B) 40S
C) 50S
D) 30S

Answer 1

Hint:Genetic information is stored in the sequence of bases down a nucleic acid chain. The bases have an added special property, they form exact pairs with one another that are stabilized by hydrogen bonds. The base pairing results in the arrangement of a double helix, a helical structure consisting of two strands.

Complete answer:
Ribonucleic Acid -RNA polymerase enzyme is a multi subunit enzyme that applies its action in the catalyzation of the transcription process of RNA synthesized from a DNA template.And as a result, RNA polymerase enzyme is responsible for the repetition of DNA sequences into RNA sequences throughout transcription.The purpose of RNA polymerase is to manage the process of transcription, through which copying of information stored in DNA into a new molecule of messenger RNA.During transcription, the RNA polymer is up to date to the template DNA that is synthesized in the direction of 5′ to 3′.The enzyme RNA polymerase interacts with proteins to allow it to function in catalyzation of the synthesis of RNA.
28S ribosomal RNA is the structural ribosomal RNA (rRNA) for the large constituent, or large subunit of eukaryotic cytoplasmic ribosomes, and thus one of the basic components of all eukaryotic cells. It is the eukaryotic nuclear homologue of the prokaryotic 23S and mitochondrial 16S ribosomal RNAs.The genes coding for 28S rRNA are known as 28S rDNA. The association of the sequences from these genes are at times used in molecular analysis to construct phylogenetic trees.Ribosomes of eukaryotic cells (80S) are made up of two subunits. They are one larger subunit (60S) and another smaller subunit (40S). The larger subunit has 28S, 5.8S and 5S rRNA. In the case of the smaller subunit it has 18S rRNA.

Hence the correct answer is option (A) 60S.

Note:In all the organisms, RNA synthesis is accepted out by proteins known as RNA polymerases it transcribe the genetic information from DNA in a highly-regulated, multi stage process. RNAP is the key enzyme that is involved in creating an equal RNA copy of a sequence of DNA.