1 The tree RNA players are ____________, _____________, and _______________. The
ID: 49613 • Letter: 1
Question
1 The tree RNA players are ____________, _____________, and _______________. They are produced during the ________________ phase of protein synthesis. This phase occurs in the ______________ of the cell.
2.The _________________ is a special sequence of DNA that signals the start of the gene. Other proteins fit onto the promoter to help direct the DNA polymerase to begin. Those other protein are called:
3.Transfer (t)RNA is a ___________ strand of RNA that folds back on itself to form a specific shape.
4. One side of the tRNA consists of an anticodon, which is: ______________________________________________________________________________. The other side of the molecule is bonded to 1 of 20 different _________________.
5. List the sequences of the mRNA molecules transcribed from the following DNA template sequences. Also, translate the associated amino acid sequence for each. You will need to use the Genetic Code from the book or slide 27 in the chapter 15 power point.
T T A - C A C - T T G - C T T - G A G - A G T
m RNA =
A A =
G G A - A T A - C G T - C T A - G C T - A G C
m RNA =
A A =
6.A protein-encoding region of a gene has the following DNA sequence:
G T A - G C G - A C G - C A A - A C A - A T T
m RNA =
A A =
Using the DNA sequence in #15 above, determine how each of the following mutations alters the amino acid sequence. What specific type of mutation is it (e.g. missense)?
Explanation / Answer
1 The tree RNA players are mRNA, rRNA, and tRNA. They are produced during the elongation phase of protein synthesis. This phase occurs in the cytoplasm of the cell.
2.The 'AUG' is a special sequence of DNA that signals the start of the gene. Other proteins fit onto the promoter to help direct the DNA polymerase to begin. Those other protein are called: initiation complex.
3.Transfer (t)RNA is a specific strand of RNA that folds back on itself to form a specific shape.
4.4. One side of the tRNA consists of an anticodon, which is: of 64 different types and complementary to the codon in mRNA. The other side of the molecule is bonded to 1 of 20 different aminoacid.
5.mRNA=AAU GUG AAC GAA CUC UCA
AA=L H L L E S
mRNA=CCUUAUGCAG AUCGAUCG
AA=G I R L A S
6.mRNA=GUAGCGACGCAAACAAUU
AA=V A T Q T I
which is the #15 sequence? in this question it is not clear here.
however missence mutation changes the coding part of an mRNA, as a result amino acid sequence.
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