choose the correct answer Use the following information to answer question 22. Y
ID: 266451 • Letter: C
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choose the correct answer
Use the following information to answer question 22. You have a segment of DNA that contains the following sequence: S-GGACTAGACAATAGGGACCTAGAGATTCCGAAA-3 You know that the RNA transcribed from this segment contains the following sequence 5-GGACUAGACAAUAGGGACCUAGAGAUUCCGAAA-3 22. Which of the following choices best describes how transcription occurs? a. the top strand is the template strand; RNA polymerase moves along this b. the top strand is the template strand; RNA polyme c. the bottom strand is the template strand; RNA polymerase moves along th d. the bottom strand is the template strand; RNA polymerase moves along this strand from 5' to 3 from 3' to 5' strand from 5' to 3' strand from 3' to 5 rase moves along this strand is 23. Which of the following statements about the genetic code is correct? a. All codons specify more than one amino acid b. The genetic code is redundant c. All amino acids are specified by more than one codon. d. All codons specify an amino acid 24. Below is the sequence from the 3' end of an mRNA. 5-CCGUUACCAGGCCUCAUUAUUGGUAACGGAAAAAAAAAAAAAA-3 If you were told that this sequence contains the stop codon for the protein encoded by this mRNA, what is the anticodon on the tRNA in the P site of the ribosome when release factor binds to the A site? a. 5-CCA-3 b. 5-CCG-3' c. 5-UGG-3 d. 5-UUA-3 e. None of the above 25. Adult stem cells are multipotent. This means they are Are to become any cell of the developed organism, but cannot produce a placenta and other fetal tissue needed to support organismal development Can become any cell of the developed organism and are able to produce fetal tissues as well a. b. c. Can become a range of cell types, but not all possible cell types d. Are able to divide numerous times, but are terminally differentiated and can only exist as one type of cellExplanation / Answer
22 Option D is correct.
The bottom strand shows sequence complementarity to the RNA.
23. Option B is correct.
The genetic code is redundant.
24. Option A is correct.
Stop codon = 5'-UUG-3'
Anticodn sequence = 5'-CAA-3'
25. Option C is correct.
Multipotent stem cells can give rise to a set of cell types but not all possible cell types
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