Homework Answers
The correct answer is segregation of mtDNA molecules into daughter cells needs to be equal
In this case, the mtDNA is entirely transferred by the mother to the offspring. All of the offspring posses only the mtDNA for their mother. It is said the the mitochondrial DNA is strictly maternal so it is not equally segregated.
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Question 12 1 pts Which of the following statements is incorrect? O Segregation of mtDNA molecules...
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...
Question 12 4 pts Suppose that a single somatic cell undergoes mitosis and cytokinesis. If you...
Question 12 4 pts Suppose that a single somatic cell undergoes mitosis and cytokinesis. If you compared the original parent cell in G1 with the daughter cells that are produced, which of the following statements would be true? Hint: Overview of Mitosis video • Textbook chapter 10 section 10.2 The daughter cells have the same number of chromosomes and the same amount of DNA The daughter cells have half the amount of cytoplasm and half the amount of DNA. The...
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply....
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply. Hint: DNA Packaging e video Genome and Ploidy video Textbook chapter 10 section 10.1 Nuclear chromosomes are linear molecules. All of the DNA is located inside the nucleus. Chromosomes contain molecules of DNA and protein The structure located between the two chromosome arms is known as a telomere.
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...
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...
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...
QUESTION 14 Which of the following behaviors of melotic chromosomes is responsible for Mendel's law of...
QUESTION 14 Which of the following behaviors of melotic chromosomes is responsible for Mendel's law of segregation? OCondensation of chromosomes during metaphase 1 OSegregation of homologous chromosomes during anaphase OSegregation of sister chromatids during anaphase I O DNA replication in interphase OPairing of homologous chromosomes in prophase QUESTION 15 Which of the tolowing best explains why some autosoma trisomies, such as trisomy 21, are viable in humans, while others die as very early embryos? O The extra gene dosage of...
FLUID o True False 1 pts Question 3 Which of the following statements about MEIOSIS are...
FLUID o True False 1 pts Question 3 Which of the following statements about MEIOSIS are CORRECT? Only haploid cells are produced Sister chromatids are separated during anaphase I and homologous chromosomes are separated during anaphase II After crossing over (recombination) the sister chromatids are still identical There are two rounds of cell division following only one round of DNA synthesis non-disjunction can occur during either anaphase I or Il 1 pts Question 4
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...
As before. Question 1 0.5 pts Which of the following does not cause a mutation? O...
As before. Question 1 0.5 pts Which of the following does not cause a mutation? O replication errors evolution O UV radiation metabolic activity failure of DNA repair systems
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...
Question 12 4 pts Suppose that a single somatic cell undergoes mitosis and cytokinesis. If you compared the original parent cell in G1 with the daughter cells that are produced, which of the following statements would be true? Hint: Overview of Mitosis video • Textbook chapter 10 section 10.2 The daughter cells have the same number of chromosomes and the same amount of DNA The daughter cells have half the amount of cytoplasm and half the amount of DNA. The...
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply. Hint: DNA Packaging e video Genome and Ploidy video Textbook chapter 10 section 10.1 Nuclear chromosomes are linear molecules. All of the DNA is located inside the nucleus. Chromosomes contain molecules of DNA and protein The structure located between the two chromosome arms is known as a telomere.
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...
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...
QUESTION 14 Which of the following behaviors of melotic chromosomes is responsible for Mendel's law of segregation? OCondensation of chromosomes during metaphase 1 OSegregation of homologous chromosomes during anaphase OSegregation of sister chromatids during anaphase I O DNA replication in interphase OPairing of homologous chromosomes in prophase QUESTION 15 Which of the tolowing best explains why some autosoma trisomies, such as trisomy 21, are viable in humans, while others die as very early embryos? O The extra gene dosage of...
FLUID o True False 1 pts Question 3 Which of the following statements about MEIOSIS are CORRECT? Only haploid cells are produced Sister chromatids are separated during anaphase I and homologous chromosomes are separated during anaphase II After crossing over (recombination) the sister chromatids are still identical There are two rounds of cell division following only one round of DNA synthesis non-disjunction can occur during either anaphase I or Il 1 pts Question 4
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...
As before. Question 1 0.5 pts Which of the following does not cause a mutation? O replication errors evolution O UV radiation metabolic activity failure of DNA repair systems
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