Question | Answer |
What is the sequence of bases on the complementary strand of this I-DNA strand? 3' TACCTTCAGCCT 5'. | ATGGAAGTCGGA |
What is the sequence of bases on the strand of mRNA that is synthesized from the original strand of DNA? | AUGGAAGUCGGA |
Name the organelle where-the synthesis of mRna takes place. | Nucleus |
What is the anticodon on the TRNA for the first (1st) codon on mRNA transcribed from this segment of DNA, 3' TACCTTCAGCCT 5'? | TAC |
During "normal conditions' proteins are essential for all the following except _____: | production of energy |
Name the organelle where the codon and anticodon couplings take place. | Ribosome |
____ is coiled in a double helix. | DNA |
____ contains thymine. | DNA |
____ contains cytosine. | DNA and RNA |
The final electron/ hydrogen acceptor in aerobic respiration is ____. | Oxygen |
____ contains uracil. | RNA |
____ brings amino acids to the ribosome. | TRNA |
____ is involved in transcription. | DNA polymerase |
The genetic code depends on bases (nucleotides) in groups of ____. | Three |
If mRNA is transcribed from a chain of DNA with the base sequence 3' CATTAG 5', the mRNA will have the sequence | GUAAUC |
DNA, but not RNA, contains ____. | thymine |
Transfer RNA functions in ____. | carrying amino acids to the correct site on the mRNA |
How many amino acids would the polypeptide encoded by 3' ACCTCCCCGCAT 5' have? | Four |
The second codon on the mRNA derived from the segment will be ____. 3' ACCTCCCCGCAT 5' | AGG |
The anticodon of the tRNA for the third codon on the MRNA will be ____. 3' ACCTCCCCGCAT 5' | CCG |
Through gene codes ultimately for all aspects of a protein's structure, it codes directly only for ____. | a primary structure |
A certain gene codes for a polypeptide that is 126 amino acids long. The portion of the gene that codes for this polypeptide is probably how many nucleotides long? | 378 |
A nonsense mutation is one in which the substitution of one nucleotide for another results in a triplet ____. | that does not code for any amino acid |
The nucleolus is a specialized region of a chromosome where the tRNA is synthesized. | False |
In base substitution mutations only a single nucleotide of a gene is altered. | True |
Some amino acids are specified by several "synonymous" codons. | True |
How many codes are there from the universal genetic code? | 64 |
In the genetic code how many stop codes are there? | 3 |
The genetic code, DNA, carries codes for ____. | Proteins |
In the last stage of aerobic respiration, ____ is the final acceptor of electrons that originally reside in glucose. | Oxygen |
In alcoholic fermentation, ____ is the final acceptor of electrons stripped from glucose. | acetaldehyde |
The germentation pathways produce no more ATP beyond the small yield from glycolysis, but the remaining reactions ____. | Regenerate |
In certain organisms and under certain conditions, ____ can be used as ab energy alternative to glucose. | Fatty acids, amino acids, glycerol. |
Electron transfer chains involve ____. | Enzymes and cofactors, and electron transfers. |