Homework Answers
(a) replication of specific genes. FALSE
(b) transcription of genes transcribed by RNA polymerase II. TRUE
(c) transcription of housekeeping genes. FALSE
(d) translation of mRNA. FALSE
(e) packing of DNA into nucleosomes in some cells and not others. FALSE
The RNA polymerase II builds the RNA that codes for proteins. Cellular differentiation is determined by the expression of certain areas of the genes. All DNA has the coding for that cell which potentially differentiate cells. The regulation of portion of the DNA controls the cell's function.
Consider a cell from liver. Then the part of DNA that encodes for proteins from liver cells will be transcribed and translated. The specific coding for this lies in the regulation RNA polymerase II. Once it transcribes the correct mRNA sequence and proper protein.
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1. (10 points) The distinct characteristics of different cell types in a multicellulan produced mainly by...
1. Induced pluripotent stem (iPS) cells ______________________. a. Are created by the expression of key transcription...
1. Induced pluripotent stem (iPS) cells ______________________. a. Are created by the expression of key transcription regulators in cells derived from adult tissues so that these cells can differentiate into a variety of cell types. b. Require a supply of donor egg cells, such as embryonic stem cells. c. Can differentiate into a greater variety of adult tissues than embryonic stem cells. d. Are created by nuclear transplantation. 2. The different characteristics of different cell types in a multicellular organism...
Answer the questions: Question 1 Transcription begins at the..... a. operon o b. repressor c. genome...
Answer the questions:
Question 1 Transcription begins at the..... a. operon o b. repressor c. genome 17d. promoter Question 2 0.5 points Save RNA is synthesized on a DNA template in a process called replication, DNA polymerase translation, RNA polymerase transcription, RNA polymerise t ranscription, DNA polymerase Question 3 Which eukaryotic RNA polymerase makes tRNA's? a RNA polymerase IIIb. Any of these RNA polymerase I od RNA polymerase II A Moving to another question will save this response. Question 4...
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would...
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would be best described as... a. 3′- TACCTACG -5′. b. 5′- ATGGATGC -3′. c. 5′- AUGGAUGC -3′. d. 5′- UACCUACG -5′. e. 3′- UACCUACG -5′. Question 2b Which answer best summarizes how eukaryotic and bacterial RNA polymerases are different? a. Eukaryotes have several types of multimeric RNA polymerases, whereas bacteria only have one monomeric RNA polymerase. b. Eukaryotes have several types of RNA polymerases, one...
1. How is the start codon identified in prokaryotic cells? a. It is the only AUG...
1. How is the start codon identified in prokaryotic cells? a. It is the only AUG on the mRNA strand. b. It is the AUG after the Shine-Dalgarno sequence. c. It is the AUG right next to the promoter on the mRNA. d. It is the AUG after the Kozak sequence. e. It is the AUG nearest the 5' end of the mRNA. 2. All of the following are true for eukaryotic transcription EXCEPT: a. Transcription can be terminated when...
Question 1 Match the term with the best definition or description; most topics relate to the...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
In humans, there are about 200 different types of cells. Why are your liver cells different...
In humans, there are about 200 different types of cells. Why are your liver cells different from skin cells, or neurons, or muscle cells? During development, each cell accumulates different mutations changing their DNA They produce the same proteins but some of those proteins are denatured in each cell They have different DNA and thus, each cell produces different proteins They produce the same kind of proteins but not all proteins are active in each cell They have the same...
QUESTION2 Which of the following statements is TRUE? O DNADNA hybrids and RNADNA hybrids are always...
QUESTION2 Which of the following statements is TRUE? O DNADNA hybrids and RNADNA hybrids are always antiparallel O DNA is replicated using the template strand as the template but RNA is transcribed using the sense (or coding) strand as the template. O Both DNA and RNA polymerization require a primer O Introns get spliced out of DNA and out of pre-mRNA QUESTION 3 0. Which of the following statements is FALSE? O Only Eukaryote genes have an A/T rich core...
11. A gene is best defined as a. A segment of DNA b. Three nucleotides that...
11. A gene is best defined as a. A segment of DNA b. Three nucleotides that code for an amino acid. C. A sequence of nucleotides in DNA that codes for a functional product. d. A sequence of nucleotides in RNA that codes for a functional product. e. A transcribed unit of DNA. 12. Which of the following statements is false? a. DNA polymerase joins nucleotides in one direction only. b. The leading strand of DNA is made continuously c....
where does transcription begin 3. List the major types of RNA and include what they code...
where does transcription begin
3. List the major types of RNA and include what they code for, their function in the cell and which type is translated. 4. If a bacterial protein has 2,500 amino acids long, how many nucleotide pairs long is the ger sequence that codes for it? 5. Where does transcription begin? 6. What is the template and nontemplate strands of DNA? 7. Why is only one strand transcribed, and is the same strand of DNA always...
DNA polymerases are processed, which means that they remain tightly associated with the while moving rapidly...
DNA polymerases are processed, which means that they remain tightly associated with the while moving rapidly and adding nucleotides to the growing daughter strand. Which piece of the machinery accounts for this characteristic? (a) helicase (b) sliding elamp (c) single-strand binding protein (d) primase RNA in cells differs from in that _____ (A) it contains the base uracil, which pairs with cytosine (b) it is single stranded and cannot form base pairs (c) it is single stranded and can fold...
Answer the questions:
Question 1 Transcription begins at the..... a. operon o b. repressor c. genome 17d. promoter Question 2 0.5 points Save RNA is synthesized on a DNA template in a process called replication, DNA polymerase translation, RNA polymerase transcription, RNA polymerise t ranscription, DNA polymerase Question 3 Which eukaryotic RNA polymerase makes tRNA's? a RNA polymerase IIIb. Any of these RNA polymerase I od RNA polymerase II A Moving to another question will save this response. Question 4...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
In humans, there are about 200 different types of cells. Why are your liver cells different from skin cells, or neurons, or muscle cells? During development, each cell accumulates different mutations changing their DNA They produce the same proteins but some of those proteins are denatured in each cell They have different DNA and thus, each cell produces different proteins They produce the same kind of proteins but not all proteins are active in each cell They have the same...
QUESTION2 Which of the following statements is TRUE? O DNADNA hybrids and RNADNA hybrids are always antiparallel O DNA is replicated using the template strand as the template but RNA is transcribed using the sense (or coding) strand as the template. O Both DNA and RNA polymerization require a primer O Introns get spliced out of DNA and out of pre-mRNA QUESTION 3 0. Which of the following statements is FALSE? O Only Eukaryote genes have an A/T rich core...
11. A gene is best defined as a. A segment of DNA b. Three nucleotides that code for an amino acid. C. A sequence of nucleotides in DNA that codes for a functional product. d. A sequence of nucleotides in RNA that codes for a functional product. e. A transcribed unit of DNA. 12. Which of the following statements is false? a. DNA polymerase joins nucleotides in one direction only. b. The leading strand of DNA is made continuously c....
where does transcription begin
3. List the major types of RNA and include what they code for, their function in the cell and which type is translated. 4. If a bacterial protein has 2,500 amino acids long, how many nucleotide pairs long is the ger sequence that codes for it? 5. Where does transcription begin? 6. What is the template and nontemplate strands of DNA? 7. Why is only one strand transcribed, and is the same strand of DNA always...
DNA polymerases are processed, which means that they remain tightly associated with the while moving rapidly and adding nucleotides to the growing daughter strand. Which piece of the machinery accounts for this characteristic? (a) helicase (b) sliding elamp (c) single-strand binding protein (d) primase RNA in cells differs from in that _____ (A) it contains the base uracil, which pairs with cytosine (b) it is single stranded and cannot form base pairs (c) it is single stranded and can fold...
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