Which of the following form Right-handed alpha helices? a ds RNA b ds DNA, ds RNA, and proteins c ssDNA and ss RNA d ds DNA
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Which of the following form Right-handed alpha helices?
a |
ds RNA |
|
b |
ds DNA, ds RNA, and proteins |
|
c |
ssDNA and ss RNA |
|
d |
ds DNA |
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- Which of the following form Right-handed alpha helices? ds DNA, ds RNA, and proteins ssDNA and ss RNA ds RNA ds DNAGiven DNA strand: 5' T G T T A G T C G A A T 3' Write its complementary DNA and its mRNA.There is a chemically synthesized DNA oligonucleotide is 5’–AUCG–3’. Pleasedraw the all-atom structure of this RNA strand, including that of the phosphategroup, the pentose (ribose), and the base for each nucleotide. The structure is inthe 5’→3’ direction
- Below is the 5’–3’ strand of a double-stranded DNA molecule with the following nucleotidesequences (all belong to an exon):5’ C C T A T G C A G T G G C C A T A T T C C A A A G C A T A G C 3’ 1. If the above DNA strand is the template (antisense) strand and the DNA molecule is transcribed that produced a functional mRNA. Assuming there are no mutations, the said mRNA is then brought to the site of protein synthesis,a. what would be the amino acid sequence of the synthesized polypeptide chain?b. how many possible kinds of tRNA molecule that will bring the 2nd amino acid observing wobble hypothesis? List down their anticodons.Use the codon chart to determine the following RNA strand in amino acids (Remember to write it the same way the strand is): ACA-AGG-UUA-UGA second letter C A UAU Tyr U UUU UCU UGU Phe Cys UUC UCC UAC UGC C Ser UAA stop | UGA stop| A UAG stop UGG Trp UUA UCA UUG Le UCG CUU CCU CAU CGU His CUC ССС CAC CGC Leu Pro Arg CUA ССА САА CGA Gln СCG CAG CGG CUG AGU AAU Asn AUU ACU Ser AGC S AGA Arg AAC AUC } lle A AUA АСC Thr AAA Lys АСА AUG Met ACG AAG AGG GUU GCU GAU GGU Asp GAC GGC Gly GGA GCC GUC Val Ala GAA GAG } GUA GCA Glu GGG GUG GCG Your answer first letter ACUCAGUCAGUCAG third letterHow many residues are there in one full turn of the double helix options: 10 20 3.4 34
- The DNA STRAND IS 3’ TAC-AGC-ACT-CAG-TCA 5’ and Non-template strand = 5' - ATG-TCG-TGA-GTC-AGT - 3' . If on the non-coding strand of DNA there is suddenly one T base that sneaks into the 4th sequence (from the left), or causes a mutation, then how will the RNA be formed and the chain arrangement of the amino acids produced by this mutation? 4th sequence (from the left) should be = TCG right?What is the complementary sequence of the following DNA strand: AATCGTCTAAGGCCWhich of the following does cytosine pair with? a. guanine b. thymine c. adenine d. a pyrimidine
- Using Figures 8.7 and 8.9 as a guide, draw a dinucleotide composed of C and A. Next to this, draw the complementary dinucleotide in an antiparallel fashion. Connect the dinucleotides with the appropriate hydrogen bonds. FIGURE 8.9 The two polynucleotide chains in DNA run in opposite directions. The left strand runs 5 to 3, and the right strand runs 3 to 5. The base sequences in each strand are complementary. An A in one strand pairs with a T in the other strand, and a C in one strand is paired with a G in the opposite strand. FIGURE 8.7 Nucleotides can be joined together to form chains caled polynucleotides. Polynucleotides are polar molecules with a 5 end (at the phosphate group) and a 3 end (at the sugar group). An RNA polynucleotide is shown at the left, and a DNA polynucleotide is shown at the right.A certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon for each codon? What is the amino acid sequence of the polypeptide? (Use Figure 13-5 to help answer this question.) Figure 13-5 The genetic code The genetic code specifies all possible combinations of the three bases that compose codons in mRNA. Of the 64 possible codons, 61 specify amino acids (see Figure 3-17 for an explanation of abbreviations). The codon AUG specifies the amino acid methionine and also signals the ribosome to initiate translation (start). Three codonsUAA, UGA, and UAGdo not specify amino acids; they terminate polypeptide synthesis (stop).The genetic code is defined as a series of _______________ in _______________. (a) anticodons; tRNA (b) codons; DNA (c) anticodons; mRNA (d) codons; mRNA (e) codons and anticodons; rRNA