Fishing Licenses, Packages & Tags. Valid Sep. 1, 2016 through Aug. 31, 2017. A valid fishing license with a freshwater or saltwater endorsement is required to take fish, mussels, clams, crayfish or other aquatic life in the public waters of Texas. A hunting license is required to take turtles and frogs.
Transcription is when RNA is made from DNA. During transcription, RNA polymerase makes a copy of a gene from the DNA to mRNA as needed. This process is similar in eukaryotes and prokaryotes.s in DNA, mRNA genetic information is in the sequence of nucleotides, which are arranged into codons consisting of three bases each. Each codon encodes for a specific amino acid, except the stop codons, which terminate protein synthesis.
How DNA Encodes for Proteins: 1. Transcription: DNA to mRNA. During transcription, DNA is converted to messenger RNA (mRNA) by an enzyme called RNA polymerase. RNA is a molecule that is chemically similar to DNA, and also contains repeating nucleotide subunits. However, the âbasesâ of RNA differ from those of DNA in that thymine (T) is replaced by uracil (U) in RNA. DNA and RNA bases are also held together by chemical bonds and have specific base pairing rules. In DNA/RNA base pairing, adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G). The conversion of DNA to mRNA occurs when an RNA polymerase makes a complementary mRNA copy of a DNA âtemplateâ sequence. Once the mRNA molecule has been synthesized, specific chemical modifications must be made that enable the mRNA to be translated into protein. 2. Translation: mRNA to protein During translation, mRNA is converted to protein. A group of three mRNA nucleotides encodes for a specific amino acid and is called a codon.