Which of the following statements is TRUE about X inactivation? A. Inactivation of a particular X...
Which of the following statements is TRUE about X inactivation?
- A.
Inactivation of a particular X chromosome depends on its genetic content.
Inactivated X chromosomes are in some way "marked" such that all clonally related cells (daughter cells) have the same X chromosome inactivated. - B.
Inactivation of an X chromosome occurs at random early in embryonic development.
Inactivated X chromosomes are in some way "marked" such that all clonally related cells (daughter cells) have the same X chromosome inactivated. - C.
Inactivation of an X chromosome occurs at random just after fertilization.
Inactivated X chromosomes are in some way "marked" such that all clonally related cells (daughter cells) have the same X chromosome inactivated. - D. Inactivation of a particular X chromosome depends on its genetic content and occurs after differentiation of cell type. Different cell types may inactivate different X chromosomes.
Homework Answers
B. Inactivation of an X chromosome occurs at
random early in embryonic
development.
Inactivated X chromosomes are in some way "marked"
such that all clonally related cells (daughter cells) have the same
X chromosome inactivated.
Add Answer to:
Which of the following statements is TRUE about X
inactivation?
A.
Inactivation of a particular X...
True or False: Sex chromosomes in mammals Indicate whether each of the following statements about sex...
True or False:
Sex chromosomes in mammals Indicate whether each of the following statements about sex chromosomes in mammals is true or false. 01. Dosage compensation involves inactivation of the Y chromosome in males in order to equalize gene expression between the sexes.(Click to select) 02. One of the X chromosomes in each cell of a female is inactivated early in embryonic development, before the embryo's sex is determined. (Click to select) 03. In a female, the same X chromosome...
D Question 22 Identify a FALSE statement about X chromosomes: a) X chromosome inactivation occurs in...
D Question 22 Identify a FALSE statement about X chromosomes: a) X chromosome inactivation occurs in all somatic cells of females. b) Xist inactivates only the maternally inherited X chromosome. The inactiveX chromosome is coated with Xist transcripts. di X chromosome inactivation does not occur in males. In early cleavage stage embryos, both X chromosomes are active.
D) A and B only E) A, B, and C 25. Which of the following statements...
D) A and B only E) A, B, and C 25. Which of the following statements are TRUE? A) It is possible for some individuals with the sex chromosome constitution XY to appear female. B) It is possible for some individuals with the sex chromosome constitution XX to appear male. C) It is possible for some individuals with the sex chromosome constitution XXY to appear female. D) All of the above are FALSE statements. E) All of the above are...
When comparing prophase I of meiosis with prophase of mitosis, which of the following occurs only...
When comparing prophase I of meiosis with prophase of mitosis, which of the following occurs only in meiosis? The chromosomes condense. Tetrads form. The nuclear envelope disassembles. A spindle forms. Each chromosome is composed of two chrom All of the following are true concerning meiosis except o maintains the same number of chromosome sets results in four daughter cells two cell divisions occur introduces genetic variability produces genetically different cells
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 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 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...
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...
all these questions have more than one correct answers 1) Meiosis & mitosis have similarities as...
all these questions have more than one correct answers 1) Meiosis & mitosis have similarities as well as differences. Which of the following represent similarities? a) Both increases genetic variation b) Both change in chromosomes number in daughter cells c) Both only occur in eukaryotes D) DNA replication must occur prior to both e) Both make use of a spindle to separate chromatids 2) Meiosis is a special form of cell division. Select any of the following that applies to...
Which of the following statements is true? Chromosomes are the support of the genes. Heredity linked...
Which of the following statements is true? Chromosomes are the support of the genes. Heredity linked to the gender concerns only the X chromosome. The phenotype designates the genetic material of a cell. D The genotype designates the way genes in a cell are expressed.
True or False:
Sex chromosomes in mammals Indicate whether each of the following statements about sex chromosomes in mammals is true or false. 01. Dosage compensation involves inactivation of the Y chromosome in males in order to equalize gene expression between the sexes.(Click to select) 02. One of the X chromosomes in each cell of a female is inactivated early in embryonic development, before the embryo's sex is determined. (Click to select) 03. In a female, the same X chromosome...
D Question 22 Identify a FALSE statement about X chromosomes: a) X chromosome inactivation occurs in all somatic cells of females. b) Xist inactivates only the maternally inherited X chromosome. The inactiveX chromosome is coated with Xist transcripts. di X chromosome inactivation does not occur in males. In early cleavage stage embryos, both X chromosomes are active.
D) A and B only E) A, B, and C 25. Which of the following statements are TRUE? A) It is possible for some individuals with the sex chromosome constitution XY to appear female. B) It is possible for some individuals with the sex chromosome constitution XX to appear male. C) It is possible for some individuals with the sex chromosome constitution XXY to appear female. D) All of the above are FALSE statements. E) All of the above are...
When comparing prophase I of meiosis with prophase of mitosis, which of the following occurs only in meiosis? The chromosomes condense. Tetrads form. The nuclear envelope disassembles. A spindle forms. Each chromosome is composed of two chrom All of the following are true concerning meiosis except o maintains the same number of chromosome sets results in four daughter cells two cell divisions occur introduces genetic variability produces genetically different cells
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...
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 following statements is true? Chromosomes are the support of the genes. Heredity linked to the gender concerns only the X chromosome. The phenotype designates the genetic material of a cell. D The genotype designates the way genes in a cell are expressed.
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