Which is true about eukaryotic cDNA? Choose all that apply. a. it is constructed from mRNA that is reverse transcribed b. it is made up of only introns c. it is single stranded d. one gene may generate more than one cDNA
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- Which is true about eukaryotic cDNA?
Choose all that apply.
| a. |
it is constructed from mRNA that is reverse transcribed |
|
| b. |
it is made up of only introns |
|
| c. |
it is single stranded |
|
| d. |
one gene may generate more than one cDNA |
Step by step
Solved in 2 steps
- In Eukaryotes, DNA is a long molecule inside a tiny nucleus. a. How can this long chain fit in such space? b. How does it affect gene expression?Choose the combination of answers that most accurately completes the statement.The function of ligase is to a. rejoin segments of DNA c. synthesize cDNA b. make longitudinal cuts in DNA d. break down ligamentsGive typing answer with explanation and conclusion to all parts The pairing of the U1 snurp and the donor site signals what particular event? A. Identify the donor splice site. B. Identify/recognize intron. C. Keep the U6 RNA free from binding to the U1 RNA. D. Base pair with the nucleotides in the Branch site. E. De-branch the lariat and release the intron.
- Which rRNA plays a major role in the aligning of the transcript in the ribosome of prokaryotes? A. 28S rRNA B. 23S rRNA C. 16S rRNA D. 18S rRNAa. Give the sequence of mRNA that would be transcribed off of the bottom strand and label its 5' and 3' ends. b. translate this RNA sequence in 1a into a protein sequence c. Give the sequence of mRNA that would be transcribed off of the top strand and label its 5' and 3' ends. d. Translate this RNA sequence in 1c into a protein sequenceWhich statement is true of the translocation phase of elongation during protein synthesis? a. The empty tRNA moves to the A site of the ribosomal complex. b. The empty tRNA moves to the T site of the ribosomal complex. c. The dipeptide moves from the A site to the P site of the ribosomal complex. d. The dipeptide moves from the P site to the A site of the ribosomal complex.
- A promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA nucleotides c. a protein that binds to DNA d. an enzyme that synthesizes RNAHow are rare bases incorporated into tRNAs? a. Encoded by guide RNAs b. By chemical changes to one of the standard bases c. Encoded by rare bases in DNA d. Encoded by sequences in intronsConsider how histone proteins bind to DNA and then explain why a salt solution with a high concentration can remove them from DNA (as shown in Figure 12.21b).
- Use your genetic code (codon) table to answer the next two questions: What type of mutation would result if the sequence of a gene were altered so that the sequence of the mRNA was changed from: AUGCCGUGCAGUAAC to AUGCCAUGCAGUAAC A) a silent mutation B) a nonsense mutation C) a frame-shift mutation D) a missense mutation E) a base insertion mutationWhich statement regarding UTRs is TRUE? a) Transcription begins at the start of the 5' UTR b) Translation begins at the start of the 5' UTR c) The 5' and 3' UTRs are spliced from the mRNA transcript d) The translation stop codon is found downstream of the 3' UTRAddition or deletion of bases causes which kind of mutation? Select one: a. Frameshift mutation b. Transversion c. Transition d. Transcription