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Nucleic Acid set 3
Nucleic Acid Module set 3
Question | Answer |
---|---|
Genetic code is a ________ meaning each three nucleotide codon in the mRNA specifies one amino acid | triplet code |
Genetic code is ______ meaning each codon read only once in translation | non-overlapping |
Genetic code is | Universal |
Genetic code is ______ meaning 18 out of 20 amino acids are coded by two or more codons | degenerate and redundant |
Genetic code has a | start and stop signal |
linear sequence of nucleotides with a fixed start point and end point and encodes a polypeptide, a tRNA, or an rRNA | gene |
gene that encodes a polypeptide | cistron |
organization of codons such that they can be read to give rise to a gene product | reading frame |
In transcription only 1 DNA 3’-5’ strand serves as the | template |
Transcription starts at (TATA box) | promoter DNA |
Transcription ends at | terminator DNA |
What is the enzyme responsible for the production of the RNA molecule? | RNA polymerase |
Breaks nucleotides at the the H-bonds between the bases,Then moves along one of the DNA strands and links RNA nucleotides together causing No “lagging strand” as only one DNA strand is transcribed | RNA polymerase |
RNA has a sugar | ribose |
DNA has a sugar | deoxyribose |
contains uracil (U) | RNA |
has thymine (T) | DNA |
RNA molecule is | single-stranded |
DNA is | double-stranded |
AUG or _____ is the start codon | methionine |