Homework Answers
DNA methylation is a process in which methyl groups are added to the DNA chain where promoter bashing can lead to increased rate of the concerned process.
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Question 1 Which of the following statements is true? Promoter bashing can lead to increased DNA...
AS Part A Which of the following events occurs during DNA replication? All methylation of the...
AS Part A Which of the following events occurs during DNA replication? All methylation of the DNA is lost at the first round of replication Methylated DNA is copied in the cytoplasm, and unmethylated DNA is copied in the nucleus Methylation of the DNA is maintained because DNA polymerase directly incorporates methylated nucleotides into the new strand opposite any methylated nucleotides in the template. Methylation of the DNA is maintained because methylation enzymes act at DNA sites where ane strand...
Could you please provide the best answer for following MCQs. Thank you. Question 1 The imprinting...
Could you please provide the best answer for following MCQs. Thank you. Question 1 The imprinting control region is best defined as a promoter that regulates the expression of MeCP2 a sequence that can be methylated or unmethylated to control the expression of one or more genes by regulating promoter-enhancer interactions a sequence that when unmethylated can bind RNA polymerase II to induce promoter activation an enhancer that is inhibited when methylated Question 2 Imprinting is best described as a...
1) The Innocence Project uses DNA fingerprint testing to explore the potential innocence of selected people...
1) The Innocence Project uses DNA fingerprint testing to explore
the potential innocence of selected people convicted of crimes. The
Innocence Project discovered that the main reason that people are
wrongly convicted is because of
Select one:
a) trial judicial procedural errors.
b) police and legal system corruption.
c) mistakes made by the defense legal team.
d) mistakes made in forensic DNA testing.
e) incorrect eyewitness identification.
2) Gene expression in eukaryotic cells requires a change from a
highly condensed...
The following statements apply to concepts and material discussed in Chapter 15; identify which statement is TRUE....
The following statements apply to concepts and material discussed in Chapter 15; identify which statement is TRUE. Answers: A common ancestor of two species on evolutionary trees can be found at the point where the two branches meet. Humans evolved from Neanderthals about 50,000 years ago. Mitochondrial DNA is not particularly useful when trying to determine the movement pattern of humans historically across the globe. Scientists can estimate when species diverged from a common ancestor by comparing their Karyotypes. We...
Which of the below is true about aerobic cellular respiration? All of these It oxidizes carbon...
Which of the below is true about aerobic cellular respiration? All of these It oxidizes carbon compounds and reduces oxygen It is endergonic It is an anabolic process It includes the Calvin Cycle and Glycolysis Does the average mutation rate in humans accurately describe the pattern of mutations across the genome? Yes. The mutation rate is the same between males and females. No. Mutation rates vary with geographic location – they are higher in some parts of the world than...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dyst...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
This question concerns cell division. For each of the following statements, say whether it is true...
This question concerns cell division. For each of the following statements, say whether it is true for mitosis only, meiosis only, both, or neither (1 mark per statement): (a) The DNA is replicated before cell division starts. (b) The homologous chromosomes pair up during division. ( c) The cell divides only once during the process. (d) The daughter cells contain precisely the same genetic material as each other. (e) The number of chromosomes in each cell increases during the process...
Which of the following statements about mutations is/are incorrect? Choose all that apply. O Mutations in...
Which of the following statements about mutations is/are incorrect? Choose all that apply. O Mutations in RNA during transcription are not inherited by daughter cells over multiple generations. O Mutations arise from sources other than just mistakes made during DNA replication. O Germ-line mutations can be passed down to offspring. O DNA replication machinery generates errors at a lower rate than RNA transcription machinery. O Mistakes in DNA replication do not lead to heritable mutations. Somatic mutations are often passed...
answer all the questions 1) All of the following contribute to promoter binding by RNA polymerase...
answer all the questions
1) All of the following contribute to promoter binding by RNA polymerase I in bacteria except: a)-10 consensus sequence b)-35 consensus sequence c) rho factor d) sigma factor e) none of the above 2) Common structural changes or lesions found in DNA after exposure to ultraviolet light are: a) thymine dimers b) cytosine dimers c) purine dimers d) adenine dimers e) none of the above 3) What is the function of the sigma subunit in the...
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells...
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if colchicine is added to a sample of cells in G2? The chromosomes would segregate but in a disorderly pattern. The chromosomes would still line up along across the middle of the cell, but the chromatids would not end up segregating The cells would immediately die. Each resultant daughter cell would...
AS Part A Which of the following events occurs during DNA replication? All methylation of the DNA is lost at the first round of replication Methylated DNA is copied in the cytoplasm, and unmethylated DNA is copied in the nucleus Methylation of the DNA is maintained because DNA polymerase directly incorporates methylated nucleotides into the new strand opposite any methylated nucleotides in the template. Methylation of the DNA is maintained because methylation enzymes act at DNA sites where ane strand...
1) The Innocence Project uses DNA fingerprint testing to explore
the potential innocence of selected people convicted of crimes. The
Innocence Project discovered that the main reason that people are
wrongly convicted is because of
Select one:
a) trial judicial procedural errors.
b) police and legal system corruption.
c) mistakes made by the defense legal team.
d) mistakes made in forensic DNA testing.
e) incorrect eyewitness identification.
2) Gene expression in eukaryotic cells requires a change from a
highly condensed...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
Which of the following statements about mutations is/are incorrect? Choose all that apply. O Mutations in RNA during transcription are not inherited by daughter cells over multiple generations. O Mutations arise from sources other than just mistakes made during DNA replication. O Germ-line mutations can be passed down to offspring. O DNA replication machinery generates errors at a lower rate than RNA transcription machinery. O Mistakes in DNA replication do not lead to heritable mutations. Somatic mutations are often passed...
answer all the questions
1) All of the following contribute to promoter binding by RNA polymerase I in bacteria except: a)-10 consensus sequence b)-35 consensus sequence c) rho factor d) sigma factor e) none of the above 2) Common structural changes or lesions found in DNA after exposure to ultraviolet light are: a) thymine dimers b) cytosine dimers c) purine dimers d) adenine dimers e) none of the above 3) What is the function of the sigma subunit in the...
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if colchicine is added to a sample of cells in G2? The chromosomes would segregate but in a disorderly pattern. The chromosomes would still line up along across the middle of the cell, but the chromatids would not end up segregating The cells would immediately die. Each resultant daughter cell would...
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