Occasionally, a mouse X chromosome is broken into two pieces and each piece becomes attached to a different autosome. In this event, the genes on only one of the two pieces undergo X inactivation. What does this observation indicate about the mechanism of X-chromosome inactivation?

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A: The process of determining which X-chromosome is inactivated in the daughter cells is a random…

Q: In what types of cells would you expect de novo methylation tooccur? In what cell types would it not…

A: DNA methylation is a biological process that involves addition of methyl groups to the Deoxy…

Q: Occasionally, a mouse X chromosome is broken into two pieces and each piece becomes attached to a…

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Q: In Drosophila, a heterozygous female for the X-linkedrecessive traits a, b, and c was crossed to a…

A: X-linked recessive inheritance is a genetic condition that can be passed from parent to child…

Q: How is the process of X-chromosome inactivation similar togenomic imprinting? How is it different?

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Q: ngineer a chromosomally XY mouse in which SRY gene is inactivated. What do you expect to observe in…

A: The DNA molecule is bundled into chromosomes, which are thread-like structures found in the nucleus…

Q: how  does X chromosome inactivation occur?

A: Female mammal's somatic cells contain two X chromosomes. Each of them is inherited from their…

Q: In X chromosome inactivation...   A-Why it is inactivated? B- How it is inactivated? C-Is the…

A: Epigenetics is the subject of heritable differences in gene representation that do not require…

Q: How does X inactivation contribute to a person’s phenotype? a. It controls the number and kind of…

A: X chromosome denotes one of the two sex chromosomes, another is the Y chromosome. Females are…

Q: With respect to X chromosome inactivation, which of the following statements are correct? OX…

A: X-chromosome inactivation happens at random in female cells during development for one of the two X…

Q: What type of epigenetic change is responsible for genomic imprinting?

A: Epigenetic refers to the patterns of inheritance that involve the alterations in characteristics…

Q: Following X-chromosome inactivation, most of the genes on theinactivated X chromosome are silenced.…

A: Females have two copies of the X chromosome, producing a double dose of X-linked genes. The…

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Q: What is the spreading phase of X-chromosome inactivation? Whydo you think it is called a spreading…

A: Heterochromatization of one X chromosome begins in the late blastocyst stage of the embryonic life.…

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Q: Discuss the similarities and differences between X-chromosomeinactivation and genomic imprinting

A: X inactivation refers to the inactivation of all of the genes in one X chromosome in all the somatic…

Q: If X inactivation compensates for an extra X chromosome, why do Klinefeltermales (XXY) have problems…

A: DNA is considered to be the genetic material within the nucleus that gets packed in thread-like…

Q: Xist encodes a protein that will coat a Y chromosome to promote its compaction. Xist is located in…

A: Xist  is a gene product which is inactive and it helps in dosage compensation in females. Females…

Q: In X-chromosome inactivation, when is the choice made as to which X chromosome is inactivated? Does…

A: Females have two copies of the X chromosome, producing a double dose of X-linked genes. The…

Q: Outline the process of X-chromosome inactivation.

A: The X-chromosome contains approximately 1000 genes, which are necessary for the proper development…

Q: Why is it that so many of the sex-linked traits we talk about in humans are carried on X chromosomes…

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Q: what is X-chromosome reactivation.?

A: The X chromosome is one of the sex chromosomes that is an essential chromosome for survival.  The X…

Q: Human females who are heterozygous for an X-linked recessive allele sometimes exhibit mild…

A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…

Q: describe X-chromosome reactivation.

A: The X chromosome is one of the sex chromosomes that is an essential chromosome for survival. The X…

Q: What type of epigenetic mark is responsible for genomic imprinting?

A: Epigenetic mark allows genes to switch off or on. These generally change the way genes are…

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A: REC8 is a very important component of meiosis specifically the prophase  It forms the pro phase…

Q: What chromosome rearrangement is thought to be the source of new genes?

A: Chromosome rearrangement is a change in the order of base sequences along one or more chromosomes.…

Q: A cytogeneticist is studying the cells from an abnormal female monkey. In some cells, she finds that…

A: reason for bar body formation The reason for this is that, in each somatic cell of a normal female,…

Q: Explain how human cells compensate for the X-linkedgene dosage difference in XX and XY nuclei.

A: A sex chromosome is a chromosome that differs from an ordinary autosome in form, size, and behavior.…

Q: If a cell is deficient of Shugoshin (sgo1), how would this affect the chromosome dynamic during…

A: Introduction Chromosomes are thread-like structures found within the nucleus of both animal and…

Q: Occasionally, a mouse X chromosome is broken into two pieces and each piece becomes attached to a…

A: The X chromosome is one of the two sex chromosomes in mammals, along with the Y chromosome. The X…

Q: A cytogeneticist is studying the cells from an abnormal female monkey. In some cells, she finds that…

A: In species with XY sex-determination, a Barr body or X-chromatin is an inactive X chromosome in a…

Q: What is the approximate location of the centromereon human chromosome 7?

A: The centromere connects the sister chromatids with each other.

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Q: Mutating the gene Transformer (tra) in Drosophila that is chromosomally XX leads to the development…

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Q: The genes that codes for the creation of certain blood groups are located on chromosome "XGp22.3",…

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Q: X chromosome inactivation in a diploid XX female is not completely inactivated, explain?

A: Introduction  X chromosome inactivation: it is also referred as Lyonization. In this there is…

Q: What evidence suggests that differences in monozygotic twins may be caused by epigenetic effects?

A: The Identical twins are also known as monozygotic twins, which occurs due to the result of…

Q: Why does the sex chromosome X carry the gene for eye color in Drosophila?

A: The mode of inheritance is a pattern of obtaining parentral alleles  or genes to the offsprings. The…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.