Homework Answers
telomeres are located at the ends of the chromosome.
the chromosome is the condensed form of chromatin, chromatin contains, the DNA wrapped around a histone octamer, histones are proteins used in the packaging of DNA.
eukaryotes have mitochondria, mitochondria contain circular DNA, so all the DNA is not isolated in the nucleus.
the chromosomes in the nucleus are linear chromosomes.
so the answer is a) nuclear chromosomes are linear molecules.
chromosomes contain molecules of DNA and protein.
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Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply....
Question 6 5 pts Which statement(s) about chromatin structure is correct? Select all that apply. Hint:...
Question 6 5 pts Which statement(s) about chromatin structure is correct? Select all that apply. Hint: • DNA Packaging e video Genome and Ploidye video Textbook chapter 10 section 10.1 Nucleosomes are composed of proteins called histones DNA is wrapped around sugar molecules. The DNA packaging amount/level/degree is adjustable depending on the cell's needs. The DNA will always be tightly wound around proteins,
Question 8 4 pts Which statement best describes the overall function/purpose of interphase? Hint: Cell Cycle...
Question 8 4 pts Which statement best describes the overall function/purpose of interphase? Hint: Cell Cycle and Interphase video • Textbook chapter 10 section 10.2 To divide a parent cell into two identical daughter cells. To double the number of chromosomes. To duplicate all of the cellular contents. To convert a haploid nucleus into a diploid nucleus. To condense and package the DNA into tightly wound chromosomes. Which statement does NOT correctly describe the bacterial chromosome? Hint: • Binary Fission...
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...
D Question 15 4 pts Select all of the following statements that apply to prophase and...
D Question 15 4 pts Select all of the following statements that apply to prophase and prometaphase: Hint: • Mitosis Phases video Textbook chapter 10 section 10.2 Chromosomes become visible. The nuclear envelope forms around the chromosomes Centrosomes separate and migrate towards opposite sides of the cell Polar microtubules (aka non-kinetochorespindles lengthen. The chromosomes become tightly coiled with condensin proteins The microtubules become attached to the kinetochores. i Cohesin proteins become degraded.
D Question 15 4 pts AD Select all of the fdllowing statements that apply to prophase...
D Question 15 4 pts AD Select all of the fdllowing statements that apply to prophase and prometaphase: Hint:- • Mitosis Phases video • Textbook chapter 10 section 10. 2 3 The microtubules become attached to the kinetochores The nuclear envelope forms around the chromosomes Cohesin proteins become degraded. The chromosomes become tightly coiled with condensin protei Chromosomes become visible Polar microtubules laka non-kinetochore spindes) lengthen Centrosomes separate and migrate towards opposite sides of the celli
Question 3 8 pts Diploid cells contain homologous chromosomes. While homologous chromosomes are very similar and...
Question 3 8 pts Diploid cells contain homologous chromosomes. While homologous chromosomes are very similar and contain the same loci, they are not identical. Which statement correctly explains why homologous chromosomes are not identical? Hint: Homologous Chromosomes e video Textbook chapter 10 section 10.1 The two members of a homologous pair are frequently mutated prio The two members of a homologous palc exchange pleces of DNA through the process of crossing over, The two members of a homologous pais tend...
Which of the following statements is true? 1 a. All cells need a highly acidic environment...
Which of the following statements is true? 1 a. All cells need a highly acidic environment to function b. Long strands of human DNA coil into 10 pairs of chromosomes. e c. Most genes contain instructions for making fat molecules. d. Each cell's nucleus contains DNA. e. Cells do not need nutrients for their growth.
thank you!! Question 1 0.5 pts It has been shown that inhibition of a key chromatin...
thank you!!
Question 1 0.5 pts It has been shown that inhibition of a key chromatin remodeling complex known as NURD. by deleting one of its subunits, can result in a significant increase in the efficiency of reprogramming of somatic cells into pluripotent stem cells. The reprogramming is normally done by the induced expression of a battery of transcription factors in the somatic cells, but is typically not very efficient. Such an observation suggests that the NURD complex is normally...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
Question 5 9 pts How is meiosis anaphase I distinctly different from mitosis anaphase? Select all...
Question 5 9 pts How is meiosis anaphase I distinctly different from mitosis anaphase? Select all that apply. Hint • Meiosis Phases Part 2 u video • Textbook chapter 11 section 11.1 During melosis anaphase I the non-kinetochore spindles will separate the chromosomes, while during mitosis anaphase the kinetochore spindles will separate the chromosomes, During melosis anaphase I crossing over will take place, while mitosis anaphase does not contain any crossing over. During meiosis anaphase I the homologous chromosomes will...
Question 6 5 pts Which statement(s) about chromatin structure is correct? Select all that apply. Hint: • DNA Packaging e video Genome and Ploidye video Textbook chapter 10 section 10.1 Nucleosomes are composed of proteins called histones DNA is wrapped around sugar molecules. The DNA packaging amount/level/degree is adjustable depending on the cell's needs. The DNA will always be tightly wound around proteins,
Question 8 4 pts Which statement best describes the overall function/purpose of interphase? Hint: Cell Cycle and Interphase video • Textbook chapter 10 section 10.2 To divide a parent cell into two identical daughter cells. To double the number of chromosomes. To duplicate all of the cellular contents. To convert a haploid nucleus into a diploid nucleus. To condense and package the DNA into tightly wound chromosomes. Which statement does NOT correctly describe the bacterial chromosome? Hint: • Binary Fission...
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...
D Question 15 4 pts Select all of the following statements that apply to prophase and prometaphase: Hint: • Mitosis Phases video Textbook chapter 10 section 10.2 Chromosomes become visible. The nuclear envelope forms around the chromosomes Centrosomes separate and migrate towards opposite sides of the cell Polar microtubules (aka non-kinetochorespindles lengthen. The chromosomes become tightly coiled with condensin proteins The microtubules become attached to the kinetochores. i Cohesin proteins become degraded.
D Question 15 4 pts AD Select all of the fdllowing statements that apply to prophase and prometaphase: Hint:- • Mitosis Phases video • Textbook chapter 10 section 10. 2 3 The microtubules become attached to the kinetochores The nuclear envelope forms around the chromosomes Cohesin proteins become degraded. The chromosomes become tightly coiled with condensin protei Chromosomes become visible Polar microtubules laka non-kinetochore spindes) lengthen Centrosomes separate and migrate towards opposite sides of the celli
Question 3 8 pts Diploid cells contain homologous chromosomes. While homologous chromosomes are very similar and contain the same loci, they are not identical. Which statement correctly explains why homologous chromosomes are not identical? Hint: Homologous Chromosomes e video Textbook chapter 10 section 10.1 The two members of a homologous pair are frequently mutated prio The two members of a homologous palc exchange pleces of DNA through the process of crossing over, The two members of a homologous pais tend...
Which of the following statements is true? 1 a. All cells need a highly acidic environment to function b. Long strands of human DNA coil into 10 pairs of chromosomes. e c. Most genes contain instructions for making fat molecules. d. Each cell's nucleus contains DNA. e. Cells do not need nutrients for their growth.
thank you!!
Question 1 0.5 pts It has been shown that inhibition of a key chromatin remodeling complex known as NURD. by deleting one of its subunits, can result in a significant increase in the efficiency of reprogramming of somatic cells into pluripotent stem cells. The reprogramming is normally done by the induced expression of a battery of transcription factors in the somatic cells, but is typically not very efficient. Such an observation suggests that the NURD complex is normally...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
Question 5 9 pts How is meiosis anaphase I distinctly different from mitosis anaphase? Select all that apply. Hint • Meiosis Phases Part 2 u video • Textbook chapter 11 section 11.1 During melosis anaphase I the non-kinetochore spindles will separate the chromosomes, while during mitosis anaphase the kinetochore spindles will separate the chromosomes, During melosis anaphase I crossing over will take place, while mitosis anaphase does not contain any crossing over. During meiosis anaphase I the homologous chromosomes will...
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