AP BIOLOGY

Detailed explanation-1: -mRNA is created during transcription. During the transcription process, a single strand of DNA is decoded by RNA polymerase, and mRNA is synthesized. Physically, mRNA is a strand of nucleotides known as ribonucleic acid, and is single-stranded.

Detailed explanation-2: -Messenger RNA (abbreviated mRNA) is a type of single-stranded RNA involved in protein synthesis. mRNA is made from a DNA template during the process of transcription.

Detailed explanation-3: -Transcription begins when RNA polymerase binds to a promoter sequence near the beginning of a gene (directly or through helper proteins). RNA polymerase uses one of the DNA strands (the template strand) as a template to make a new, complementary RNA molecule. Transcription ends in a process called termination.

Detailed explanation-4: -The process of making RNA from the DNA is called transcription and it occurs in the nucleus. The process of transcription occurs from the DNA strands and results in the formation of a nascent mRNA, which is then further modified.

Detailed explanation-5: -Once transcribed, mRNAs associate with a host of proteins throughout their lifetime. These mRNA–protein complexes (mRNPs) undergo a series of remodeling events that are influenced by and/or influence the translation and mRNA decay machinery.