DNA sequences found in introns provide a amino acid sequence information b

Dna sequences found in introns provide a amino acid

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29. DNA sequences found in introns providea. amino acid sequence information.b. regulatory information.c. no known useful information.d. structure for the gene.e. alternative DNA splicing possibilities.Answer: c30. A gene family is a set of genes that over time has changed slightly, extensively, or not at all. Which of the following statements is true for gene families?31. The different members of the β-globin gene family
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32. Which of the following is a posttranscriptional modification of mRNA found in eukaryotes?33. Which of the following is notpart of RNA processing in eukaryotes?a. Splicing of exonsb. Reverse transcriptionc. Addition of a 5′ capd. Addition of a poly A taile. Intron removalAnswer: b34. Consensus sequences (short segments of DNA) appear in the transcribed regions of various genes. These sequences appear to be involved in35. The tail added to pre-mRNA36. The expression of some genes can be regulated in part by the pattern of RNA splicing. This is an example of
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37. Which of the following best describes the function of the addition of a methylated guanosine cap to the 5′ end of primary mRNA?a. It contains all of the coding and noncoding sequences of the DNA template.b. It provides the mRNA molecule with a poly A tail.c. It facilitates the binding of mRNA to ribosomes.d. It forms hydrogen bonds.e. It helps transfer amino acids to the ribosomes.Answer: c
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