Provide answers to each of the following. You may consult your text and fellow students. Each numbered item counts 2 points.
1. If one strand of a DNA double helix has the sequence GTCCAT, what is the sequence of the other strand?
a. ACTTGC
b. CUGGTU
c. CAGGTA
d. CAGGUA
e. TGAACG
2. If a strand of DNA has the sequence AAGCTC, transcription will result in a(n) ______.
a. single DNA strand with the sequence TTCGAG
b. single RNA strand with the sequence TTCGAG
c. DNA double helix with the sequence AAGCTC for one strand and TTCGAG for the complementary strand
d. single RNA strand with the sequence UUCGAG
e. RNA double helix with the sequence UUCGAG for one strand and AAGCUC for the complimentary strand
3. The DNA codon AGT codes for an amino acid carried by a tRNA with the anticodon ______. a. TCA b. TCU c. AGT d. AGU e. UCA
4. If the sequence of an mRNA is AUGUUUACUCCA, what is the sequence of amino acids in the polypeptide translated from it? Use the genetic code in your text. a. Met-Phe-Thr-Pro b. Met-Thr-Arg-Thr c. Met-Ser-Thr-Arg d. Met-Trp-Thr-Arg e. Met-Ser-Phe-Thr
5. What is the sequence of amino acids in the polypeptide translated from the mRNA in #4 if a mutation results in a G inserted after the AUG codon? a. Met-Phe-Thr-Arg b. Met-Val-Tyr-Ser c. Met-Phe-Val-Ser d. Met-Ala-Gln-Ser e. Met-Val-Ser-Tyr
You May Also Find These Documents Helpful
-
c) What would be the resulting mRNA, assuming RNA polymerase will use the DNA sequence, -GATTGACCGTAA- ? (4 points)…
- 276 Words
- 3 Pages
Satisfactory Essays -
RNA: RNA is similar to DNA except that instead of deoxyribose as the sugar, it has ribose. It is single stranded, and instead of thymine, there is uracil. There are 3 forms involved in polypeptide synthesis:mRNA: Messenger RNA carries the genetic code outside the nucleus, into the cytoplasm, where it can be read by ribosomestRNA: Transfer RNA carries the amino acids to the ribosomes to link and form a polypeptide chain. tRNA are shaped like clover leaves; there is a different type for every amino acid. At the bottom of every tRNA molecule is an anti-codon that binds to the codon on the mRNA strand. That is how the amino acid is linked to the codon.…
- 7073 Words
- 23 Pages
Good Essays -
During translation, Ribosomal RNA combines with proteins to form a ribosome. tRNA (transfer RNA) brings individual amino acids to the ribosome, mRNA binds the ribosome. 3 nucleotides at a time equal 1 codon or an amino acid. Therefore the resulting amino acid sequence from the previous mRNA is AUG, GGA, AAU, CAU, CGG, UGA = Methionine, Glycine, Asparagine, Hisitdine, Proline, Stop. The first codon of the sequence (AUG), is the start of the sequence. The significance of this codon is that it symbolizes where the mRNA should start copying. The last codon of the sequence (UGA) is the end of the sequence or mostly known as "Stop". This symbolizes where the mRNA should stop copying.…
- 565 Words
- 3 Pages
Good Essays -
f) It would not be possible to obtain the same DNA nucleotide sequence because the introns that have been removed would have been part of the DNA sequence when translated backwards. So if a protein were to be translated…
- 366 Words
- 2 Pages
Satisfactory Essays -
Which type of replication results in 2 duplexes made of one parental strand and one newly synthesized strand?…
- 1248 Words
- 5 Pages
Good Essays -
B. RNA polymerase moves along DNA, adding complimentary ribonucleotides, until the end of the gene is reached…
- 1541 Words
- 6 Pages
Satisfactory Essays -
5 Was the mutational effect greater in a substitution or a deletion? Explain your answer clearly.…
- 518 Words
- 2 Pages
Good Essays -
RNA is generally single stranded and not double stranded. Lastly RNA contains uracil in place of thymine.…
- 275 Words
- 2 Pages
Satisfactory Essays -
Describe the structure of DNA.DNA is thread formed by two strands, related together to form a double helix. The double helix looks like a twisted ladder. The sides of this ladder are long unites called nucleotides and are made of three parts; a nitrogenous base, a sugar, and a phosphate group. The sides of the ladder or the nucleotides from the two separate strands of the DNA are attached by an appendage made of one of four separate bases. These appendages represent the rungs of the DNA ladder and are attached to the complimentary strand of the DNA. The bases or rungs are made of either Adenine (A) OR Thymine (T) or Cytosine (C) and Guanine (G). The attachment of the strands by the bases is specific Adenine can only join with Thymine, and Cytosine can only join with Guanine. Since this base pairing is specific, if one knows the sequence of bases a long one strand of the DNA one will also know the strand of the DNA one will also know the sequence along the complimentary strand.…
- 491 Words
- 2 Pages
Satisfactory Essays -
DNA is made up of two strands. At one end of each strand there is a phosphate group attached to the carbon atom number 5 of the deoxyribose (this indicates the 5' terminal) and at the other end of each strand is a hydroxyl group attached to the carbon atom number 3 of the deoxyribose (this indicates the 3' terminal). The strands run in opposite directions and so we say that they are antiparallel. One strand runs in a 5'-3' direction and the other runs in a 3'-5' direction. Adjacent nucleotides are attached together via a bond between the phosphate group of one nucleotide and the carbon atom number 3 of the deoxyribose of the other nucleotide.…
- 2219 Words
- 9 Pages
Powerful Essays -
1. A portion of specific DNA molecule consists of the following sequence of nucleotide triplets.…
- 510 Words
- 3 Pages
Satisfactory Essays -
The flow of information from gene to protein is based on the triplet code. The genetic instructions for the amino acid sequence of a polypeptide chain are written in DNA and RNA as a series of three-base words called codons. The three-base codons in DNA are transcribed into complementary three-base codons in RNA, and then the RNA codons are translated into amino…
- 459 Words
- 2 Pages
Good Essays -
The mRNA encodes the amino acid sequence of a protein. During the translation, ribosomal RNA combines with other proteins to form a ribosome which amino acids are transported to the ribosome. The combination of mRNA and tRNA converts the mRNA into the amino acid sequence of the protein.…
- 438 Words
- 2 Pages
Satisfactory Essays -
ii) Do all codons code for amino acids? If not, what do the other codons code for?…
- 792 Words
- 4 Pages
Good Essays -
DNA polymerase ignites the replications next to primer & adds complementary nucleotides in the 5’ to 3’ direction & moving away from the replication fork Okazaki fragments are the short lengths of DNA formed between RNA primers on the lagging strand…
- 406 Words
- 2 Pages
Satisfactory Essays