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...
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...
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...
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...
Question 4 9 pts Select all of the following statements that are true concerning the daughter...
Question 4 9 pts Select all of the following statements that are true concerning the daughter cells of meiosis: Hint: • Overview of Meiosis e video Compare Mitosis and Meiosis e video • Textbook chapter 11 section 11.1 The daughter cells are genetically identical to each other, but genetically different from the original parent cell. The daughter cells contain replicated chromosomes. Each daughter cell has half as many chromosomes as the original parent cell Each daughter cell only contains one...
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...
QUESTION Which of the following statements regarding geniet diversity is false? Genetic diversity is enhanced by...
QUESTION Which of the following statements regarding geniet diversity is false? Genetic diversity is enhanced by random fertilization Genetic diversity is enhanced by Independent orientation of chromosomes at me Genetic diversity is enhanced by mitosis Genetic diversity is enhanced by crossing over during meless QUESTION 7 Which of the following statements regarding the differences between mitosis and melosis is false? In melosis four daughter cells are produced, whereas in mitosis two daughter cells are produced. Cells produced by mitosis are...
Which statements about the modification of chromatin structure in eukaryotes are true? 1.DNA is not transcribed...
Which statements about the modification of chromatin structure in eukaryotes are true? 1.DNA is not transcribed when chromatin is packaged tightly in a condensed form 2.Some forms of chromatin modification can be passed on to future generations of cells 3.Acetylation of histone tails in chromatin allows access to DNA for transcription 4.Acetylation of histone tails is a reversible process. 5. Methylation of histone tails in chromatin can promote condensation of the chromatin 6. Deacetylation of histone tails in chromatin loosens...
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...
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...
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...
Question 4 9 pts Select all of the following statements that are true concerning the daughter cells of meiosis: Hint: • Overview of Meiosis e video Compare Mitosis and Meiosis e video • Textbook chapter 11 section 11.1 The daughter cells are genetically identical to each other, but genetically different from the original parent cell. The daughter cells contain replicated chromosomes. Each daughter cell has half as many chromosomes as the original parent cell Each daughter cell only contains one...
QUESTION Which of the following statements regarding geniet diversity is false? Genetic diversity is enhanced by random fertilization Genetic diversity is enhanced by Independent orientation of chromosomes at me Genetic diversity is enhanced by mitosis Genetic diversity is enhanced by crossing over during meless QUESTION 7 Which of the following statements regarding the differences between mitosis and melosis is false? In melosis four daughter cells are produced, whereas in mitosis two daughter cells are produced. Cells produced by mitosis are...
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