A protein that has been reversibly denatured has Multiple Choice temporarily lost part or all of its primary structure. been genetically modified due to errors in the nucleotides in the parent DNA temporarily lost part or all of its secondary or tertiory structure. temporarily lost the hydrogen bonding between nitrogenous bases. temporarily lost its amino acid residues.

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

Which of the following mutations near the beginning of a gene likely results in numerous amino acid changes in the resulting protein?   insertion of three consecutive nucleotides. deletion of three consecutive nucleotides replacement of two consecutive nucleotides with two other nucleotides replacement of one nucleotide for another nucleotide insertion of two consecutive nucleotides

Which of the following mutations will MOST drastically change the polypeptide sequence for which the DNA codes?     1 base pair change     2 base pair changes     3 consecutive insertions     1 insertion

When DNA is copied, sometimes a mutation can occur where an incorrect, base pairing appears within the structure of a DNA molecule replacing original base pairs. This mistake is called a mutation. Deletion Translocation Point (Substitution) Inversion

A polypeptide has the following amino acid sequence: Met-Ser-Pro-Arg-Leu-Glu-Gly The amino acid sequence of this polypeptide was determined in a series of mutants listed in parts a through e.  indicate the type of mutation that occurred in the DNA (single-base substitution, insertion, deletion) and the phenotypic effect of the mutation (nonsense mutation, missense mutation, frameshift, etc.). a. MMutant 4: Met-Ser-Pro-Glu-Gl

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

Identify the type of mutation and how it would affect the protein made (amino acid) if the following changes occurred in the DNA template strand.DNA Strand:  TCT AAC TAT CCC CTA Third codon change from TAT to TAG. Second codon change from AAC to ATC. Nucleotide with adenine (A) base inserted between 14th and 15th nucleotide. Ninth nucleotide changes from T to C.

Draw out the following DNA sequence on a white sheet of paper along with itscomplementary strand. Challenge yourself by not using any notes to begin with.  Use hexagon and hexagon/pentagon shapes within the nitrogenous bases to depict purines and pyrimidines.  Use circles and pentagons to show phosphates and sugars in the backbones.  Label the ends (5’ and 3’) and make sure to associate those ends with the correct functional group.  Include the proper number of hydrogen bonds between base pairs. 3’ CCAGGTACT 5’

The following is the base sequence on the coding strand of a DNA molecule.          AAT GCC AGT GGT TCG CAC   Rewrite the base sequence above and underneath write the base sequence for the template DNA strand. Write the base sequence for the strand of mRNA transcribed from the original strand of DNA or template strand. Remember transcribing means making mRNA from DNA. Write the amino acid sequence translated from this mRNA. Translating means making an amino acid chain from mRNA. A) If the fourth nucleotide in the coding DNA strand was changed from a G to a C, what would be the base sequence of the new strand of mRNA? b) What would the resulting amino acid fragment be? A) If a G were added to the coding DNA strand after the third nucleotide, what would be the base sequence of the resulting mRNA? B) What would the resulting amino acid fragment be?