Which of the following schemes for molecular information flow never occurs in cellular life forms? a. DNA to rRNA b. mRNA to protein c. DNA to tRNA d. DNA to mRNA e. RNA to DNA
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Which of the following schemes for molecular information flow never occurs in cellular life forms?
a. DNA to rRNA
b. mRNA to protein
c. DNA to tRNA
d. DNA to mRNA
e. RNA to DNA
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- Which of the following statements represent the flow of genetic information in cells? Group of answer choices DNA to RNA to protein protein to DNA to RNA RNA to DNA to protein DNA to protein to RNAYou are working in the lab and have measured the size of mRNA that has been transcribed from a particular gene in your cell population. The length of the gene in the cells you are working, measured from the start to the stop sequence is 9000 nucleotides. When you measure the RNA, however, the size is only 3000 nucleotides. What do you think happened? O a. Three DNA base pairs code for one RNA nucleotide. b. mRNA does not contain exons. c. There must have been a deletion mutation in the DNA in these cells. Od. The poly-A tail is present in the DNA but not on the mRNA. Oe. RNA splicing occurred, so introns are removed in the mRNA.Below is a list of functions related to protein synthesis. Place the number for the function in the blank above its corresponding structure. 1. Copies the genetic code from DNA and carries it to the ribosomes 2. Splits DNA into two strands and transcribes MRNA from the antisense strand 3. Carries amino acids to the ribosome 4. Area on DNA antisense strand that RNA polymerase binds to begin transcription Promoter MRNA RNA TRNA region polymerase
- Two cells use the same segment of DNA to produce two different proteins. The mRNA transcribed by cell A contains more introns than does the mRNA produced by cell B. Which of the following is true about the proteins of these cells? O A The protein for cell A is longer. O B. The protein for cell A is shorter. O C. Cell A produces more of this protein. O D. Cell A produces less of this protein. mswered MacBook Air F3 F4 F7 F9 @ # $ % & * 2 5 6 7 W E R S D H KList and describe the processes that make up the central dogma of biology which provides the path for the flow of genetic information from DNA to the proteins that are synthesized and carry out the functions needed by the cell.In what order does the genetic information flow in living organisms? Choose all that are true. genetic information can be rewritten from protein to DNA genetic information can be translated from RNA to protein genetic information can be rewritten from DNA to RNA genetic information can be rewritten from protein to RNA genetic information can be rewritten from RNA to DNA
- The Selfish Gene is a radical theory that argues that all living creatures are essentially vehicles for their genes- hence, we all are a “survival machine" for our genes. In the light of what you have learned about the molecular structure and function of the gene, is this perspective still relevant? Cite specific biological phenomena to prove your point. References:The "Central Dogma of Life" states that the pattern of information that occurs most frequently in our cells is: O From existing proteins to make new RNA. From new RNA to make DNA. From existing DNA to make new DNA. O From existing DNA to make new DNA. From DNA to make new RNA. From RNA to make new proteins. From existing RNA to make new DNA. From DNA to make new proteins. From existing proteins to make new proteins. All of these occur at different stages of organisms' lives.Give example situation of Clinical Applications of Molecular Biology in your life.
- A few genes produce regulatory molecules that help the cell assemble proteins. The journey from gene to protein is complex and tightly controlled within each cell. Which of the following statements best describes the role of DNA and RNA in protein synthesis? * A. DNA is the primary genetic material contained within a cell. B. DNA is the long-term storage while RNA is the messenger containing instruction from DNA C. DNA creates protein during protein synthesis & converts it into usable molecules while RNA assembles amino acid into a protein. D. All of the above. Humans and chimpanzees share many common characteristics. How would you explain the similarities of the amino acid sequences that can be found in both organisms? * A. Two groups share a relatively common ancestor B. Humans evolved from chimpanzees C. Two groups belong to the same species D. Chimpanzees evolved from…Cells contain genetic information Which of the following sentences describes how genetic information is organized and used? O Genes in DNA molecules encode directions for chromosomes: O Chromosomes are organized into strands of RNA O Genes in DNA molecules encode directions for protein production A single gene is composed of multiple chromosomesBelow is a list of functions related to protein synthesis. Place the number for the function in the blank above its corresponding structure. 1. Copies the genetic code from DNA and carries it to the ribosomes 2. Splits DNA into two strands and transcribes mRNA from the antisense strand 3. Carries amino acids to the ribosome 4. Area on DNA antisense strand that RNA polymerase binds to begin transcription Answer Answer Answer Answer Promoter region mRNA RNA polymerase tRNA