7. A mad scientist has all the molecules necessary for protein synthesis in a test tube. Included in this test tube are: template DNA from a giraffe, mRNA from a shark, tRNA from a yeast, ribosomes from a donkey and amino acids from a strawberry. If protein synthesis occurred, the proteins would be from which of the above sources? A. Strawberry B. Giraffe C. Shark D. Yeast E. Donkey

7. A mad scientist has all the molecules necessary for protein synthesis in a test tube. Included in this test tube are: template DNA from a giraffe, mRNA from a shark, tRNA from a yeast, ribosomes from a donkey and amino acids from a strawberry. If protein synthesis occurred, the proteins would be from which of the above sources? A. Strawberry B. Giraffe C. Shark D. Yeast E. Donkey

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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1. Using the DNA provided transcribe DNA into MRNA. 2. Use the mRNA strand you created and break it up into codons. 3. Plug the codons into the amino acid chart to determine the correct amino acid needed to build that protein. 4. Identify the protein you made by comparing the sequence to the pictures 5. Answer the questions for each protein molecule you build before moving on to the next. Protein 1: DNA AAGACCGTATAC MRNA Amino Acid Sequence 1. Which kind of protein molecule did this gene make? 2. How does this protein help the body maintain homeostasis?
A eukaryotic cell has a mutation that prevents mRNA from leaving the nuclear envelope. What result should be observed in this cell? 1. DNA will not replicate. 2. A polypeptide will not be synthesized. 3. RNA will not be transcribed from DNA. 4. A cap and poly-A tail will not be attached to the mRNA.
The advantage of yeast cells over bacterial cells to express human proteins is that: a. yeast cells grow faster b. yeast cells are easier to manipulate genetically c. yeast cells are eukaryotic and modify proteins similarly to human cells d. yeast cells are easily lysed to purify the proteins
8. Some antibiotics work by preventing protein synthesis in bacteria by binding to their ribosomes. Which statement explains why these antibiotics kill bacterial cells but not human cells? A. Antibiotics recognize human genes but not bacterial genes B. Ribosomes in human cells have a different structure to those in bacterial cells C. MRNA in bacterial cells is not processed before translation D. Both DNA and ribosomes are located in the cytoplasm in bacteria E. Ribosome in human cells is located inside the nucleus 9. Shine Dalgarno sequence is A. an RNA component of ribosome В. а romoter sequence C. a sequence for initiator tRNA binding D. located upstream of the coding sequence E. a sequence for recognition by RNA polymerase holoenzyme 10. Which of the following statements about ribosome is INCORRECT? A. Ribosome consists of protein and RNA B. 50S subunit can't bind to 30S subunit till IF1 an IF3 dissociate from 30S subunit C. Energy is consumed when ribosome moves along the mRNA in…
8) Which of these describes the function of RNA polymerase? A. Amplifies the “message" by making multiple copies of an mRNA molecule after it has been transcribed from DNA B. Converts a protein sequence to mRNA
1. Describe how the plasmid is cut open by genetic engineers?2. How is the insulin gene removed from the strand of human DNA?3. Explain why the sticky gene fits into the opening of the plasmid.4. How does genetic engineering help those who are insulin dependent diabetics? Explain thoroughly
Section B: True / False 1. The two sequences shown below are complementary to each other. T or F GTCGAC CAGCUG 2. Telomerase possesses RNA polymerase activity. T or F 3. Topoisomerase binds to DNA ahead of the replication fork. T or F snRNA is not transcribed during translation. T or F 5. Promoter is located in the intron of pre-mRNA. T or F Poly-A tail is added to RNA in bacteria. T or F Translation stops when Stop codon arrives E site in ribosome. T or F EF-G is used in translation termination. T or F 9. A subunit of hemoglobin carries more oxygen molecule than a myoglobin does. T or F 10. The formation of carbamate group in hemoglobin reduces its affinity to oxygen. T or F 4. 6. 7. 8.
1. What causes mutations? c. Passed down by genetics d. Mistakes in replication a. The amino acids b. It's how you born 2. Mutations are only passed on to offspring when they happen in a. body cells b. reproductive cells c. prokaryotic cells d. the mitochondria 3. If a mutation occurs in an expressed gene, it will most directly affect the structure of a cell's а. АТР b. energy source c. membrane d. proteins
We want to extract DNA from this culture of bacteria suspended in Media the bacteria cells are floating in the liquid. Our first step is to centrifuge our sample. Do we keep the supernatant or the pellet and why? A. Supernatant because it contains Calais or nutrients B. Pellet because it contained only DNS and the supernatant contains the rest of the cell part C. Supernatant because it contains only dna and the pellet contains the rest of the cell parts D. Pellet because it contains the parts of the bacterial cell with the plasmid DNA
8. Which serves as the template for the assembly of amino acids during protein synthesis? * A. DNA B. MRNA C. FRNA D. TRNA 9. Which of the following is the correct sequence of protein synthesis? * A. replication – translation – transcription B. translation – transcription – replication C. replication – transcription – translation D. translation – replication - transcription 10. Which of the following about mutation is TRUE? * A. Mutations may affect only one gene, or they may affect whole chromosomes. B. Mutations in body cells affect only the individual and are not passed on to the offspring. C. Mutations in eggs or sperm affect future generations by transmitting these changes to their offsprings. D. All of the above 11. 1st The endocrine system consists of glands that secrete chemicals called hormones to control various body processes. 2nd This control system usually brings about slow changes in the body because chemical messengers move more slowly than nerve impulses. A. both…
7. Replication factor C plays which of the following roles in eukaryotic DNA replication?A. the sliding clampB. the clamp loaderC. the DNA ligaseD. a single-stranded DNA binding proteinE. a cofactor required for activating the DNA polymerase 8. Phages that program the host cell for continued particle releasing without killing the cell are called ____________ phages.A. lyticB. lysogenicC. temperateD. chronicE. none of the above 9. Retroviruses use _______ to make a DNA copy of their RNA genome.A. restriction enzymesB. DNA polymerase IC. RNA polymerase IID. reverse transferaseE. reverse transcriptase
Given: 3' TAC CAG TTA AGC CTC GGT ATC CAG GAT ACG 5' What would be the first 10 bases at the 5' end of the complementary strand? A. 5' TCG CGTATC C 3' C. 5' GGC TTA ACT G 3' E. none of the choices B. 5' ATG GTC AATT 3' D. 5' CGT ATC CTG G 3' WRITE THE CAPITAL LETTER OF YOUR ANSWER.