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genetics study three
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Question | Answer |
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crossing over | A process occurring during meiosis wherein two chromosomes pair up and exchange segments of their genetic material. |
tRNA | hort-chain rna molecules present in the cell that attach the correct amino acid to the protein chain that is being synthesized at the ribosome of the cell (according to directions coded in the mRNA). |
semi-coservative replication | process whereby the strands of dNA in the double helix are separated and each one is copied to produce a new strand. one of each parent strand is conserrved and remains intact after replication has taken place. |
codon | A set of three adjacent nucleotides, also called triplet, in mRNA that base-pair with the corresponding aniticodon of tRNA molecule that carries a particular amino acid, hence, specifying the type and sequence of amino acids for protein synthesis. |
transcription | It is the process of transcribing or making a copy of genetic information stored in a DNA strand into a complementary strand of RNA (messenger RNA or mRNA) with the aid of RNA polymerases. |
translation | A step in protein biosynthesis wherein the genetic code carried by mRNA is decoded to produce the specific sequence of amino acids in a polypeptide chain. The process follows transcription in which the DNA sequence is copied into an mRNA. |
mRNA | Abbreviated form for messenger ribonucleic acid, the type of RNA that codes for the chemical blueprint for a protein (during protein synthesis). |