Although all of the DNA in the human genome may be important for gene regulation or other functions, the amount of DNA that is actually part of the coding regions for proteins is less than 2% about 50% 26.4% only about 90%

Although all of the DNA in the human genome may be important for gene regulation or other functions, the amount of DNA that is actually part of the coding regions for proteins is less than 2% about 50% 26.4% only about 90%

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter15: From Dna To Protein

Section: Chapter Questions

Problem 1TYK: Eukaryotic mRNA: usessnRNPs to cut out introns and seal together translatableexons. uses a...

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Question

Although all of the DNA in the human genome may be important for gene regulation or other
functions, the amount of DNA that is actually part of the coding regions for proteins is
less than 2%
about 50%
26.4%
only about 90%

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Which of the following describe how the order of nucleotide bases along a gene in the DNA ultimately determines the primary structure of a protein and how the primary structure ultimately determines the three-dimensional shape and function of the protein coded for by that gene. A Certain amino acids in a protein interact with other amino acids in that same protein and so the order of amino acids ultimately determines the 3-dimensional tertiary structure of that protein. B The order of nucleotide bases along the DNA is transcribed into complementary tRNA which is translated into the correct amino acid sequence for the protein by mRNA. C The order of nucleotide bases along a gene determines the order of amino acids in the resulting protein. The order of amino acids in the protein is called its secondary structure.
Eukaryotic mRNA: usessnRNPs to cut out introns and seal together translatableexons. uses a spliceosome mechanism made of DNA to recognizeconsensus sequences to cut and splice. has a guanine cap on its 39 end and a poly(A) tail on its 59 end. is composed of adenine, thymine, guanine, and cytosine. codes the guanine cap and poly(A) tail from the DNAtemplate.
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Protein synthesis is a complicated process involving DNA being transcribed to RNA, which is then translated into amino acids. Complete the DNA-to-amino acid table for three consecutive codons with the appropriate nucleotides and amino acids using a codon table. Nucleotide and amino acid options can be used multiple times or not at all. 5' to 3' DNA strand T T A G A G 3' to 5' DNA strand A A T C T C G C G transcribed mRNA U U A G A G C G C TRNA anticodon A. A U C U G C G amino acid leucine glutamic acid Answer Bank A glutamic acid leucine cysteine arginine proline U
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The following is the DNA sequence of the entire protein-coding region for some small gene in a eukaryote. Shown is the coding strand. The first row is the original sequence with no mutations. Subsequent rows represent a single mutation. Mutation DNA Sequence None 5' ..A TGGGCGAGGT ATTATA G.. 3 5' ..A TGGGCGAGAT AT TA TA G.. 3' 5' ..A TGGGCGAG GTA CTATA G.. 3' C 5'..A TG GCCGAGG TATTATA G.. 3' The region without a mutation is transcribed, and then translated. Give the protein that is translated from this section of DNA. Use the single letter abbriviations for amino acids with no spaces. N- -C Determine the molecular basis for each mutation and what effect there would on the protein. Mutation Molecular Basis Effect on Protein
What is the sequence of the following?
Which of the following mutations would be most likely to have the most negative effect on the functioning of a protein produced by the gene? Group of answer choices a deletion of one nucleotide at the beginning of the coding sequence a substitution of one nucleotide at the beginning of the coding sequence an insertion of three nucleotides near the end of the coding sequence a substitution of one nucleotide near the end of the coding sequence
Base substitutions in a gene exon might not result in a change in the gene product because _________________________________. more than one codon may specify the same amino acid mutations in exons do not affect the final protein sequence of amino acids single base substitutions cannot alter the amino acid sequence of a protein exon most of the DNA is non-coding they are reversed during intron-splicing
How many introns and exons are there in this picture below.