Why is X-inactivation necessary in individuals with two X chromosomes?

Q: If a woman is a carrier of a certain x linked disease and one of her X chromosomes is turned off in…

A: As according to the above question; women is a carrier of Certain X linked disease.for example ;…

Q: a. In which sex, XY males or XX females, would the Sxl protein bind to the msl-2 mRNA? b. As…

A: Drosophila sex determination and dosage compensation are primarily controlled by two distinct sets…

Q: Describe the process of X-chromosome inactivation in mammals

A: X-chromosome inactivation, also known as lyonization, is a process by which one of the copies of the…

Q: When skin cells on a female fighter's arm divide to heal a wound she got during a fight in an arena,…

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

Q: only at the pseudoautosomal regions. Genes in the pseudoautosomal regions on the Barr body X…

A: INTRODUCTION Meiosis Meiosis is a reduction division and the daughter cell contain half the number…

Q: You are interested in the expression of regions of the X chromosome at different times in human…

A: The investigation of the X chromosome at different phases of human fetal development is a complex…

Q: How do translocations in which no genetic information is lost or gained produce phenotypic effects?

A: Translocation is caused Due to separation of a chromosome segment and its union to a nonhomologous…

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

A: Introduction  During the sexual reproduction in fertilization process there is fusion of male gamete…

Q: In dosage compensation, do males sometimes overcompensate or is it always Barr body X-chromosome…

A: Dosage compensation is the process by which the organisms equalizes their genetic expression between…

Q: What unusual feature of the Y chromosome allows some recombination among the genes found on it?

A: Every individual has 23 pairs of chromosomes, out of which 22 are identical, one ie sex chromosome…

Q: “In an organism that reproduces asexually, there is no difference between a somatic cell mutation…

A: Somatic mutations These refers to the mutations in a single body cell, which cannot be inherited.…

Q: How do translocations such as the Philadelphia chromosome contribute to cancer?

A: Translocations generate novel chromosomes, a segment from one chromosome is transferred to a…

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: Why is fragile X, but not Huntington disease, considered a syndrome?

A: Fragile X syndrome causes various symptoms including developmental delays, cognitive impairment, and…

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…

Q: the deletion of which chromosome causes obvious morphological and mental defects in the organism,…

A: Cri-du-chat syndrome, otherwise called 5p-(5p minus) syndrome or cat cry syndrome, is a chromosomal…

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.…

Q: Why is karyotype done at metaphase?

A: Meta means middle, phase means stage. Metaphase is the middle stage of cell division. Karyotype is…

Q: During growth, can a patch of tissue with a white phenotype give rise to a patch with a green…

A: Plants are multicellular organisms in the kingdom Plantae. Plants have an essential role in the…

Q: What is a Barr body? How is its structure different from that ofother chromosomes in the cell? How…

A: Chromosomes are the carrier of genetic material deoxyribonucleic acid (DNA). They are coiled in…

Q: What is the chromosome abnormality in cri du chat syndrome?

A: Cri-du-chat syndrome, commonly known as 5p- (5p minus) syndrome. Infants with this syndrome…

Q: Why do females not produce more protein encoded by genes on the X chromosome than males? One X…

A: The Y chromosome is one-third the size of the X chromosome and contains about 55 genes while the X…

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…

A: Traits can be dominant, recessive, sex linked recessive or sex linked dominant. Dominance is the…

Q: What is the link between a phosphate functional group, the cellular respiration and the X-linked…

A: A phosphate functional group is a simple phosphorus atom that is bound to four oxygen atoms.…

Q: What occurs during duplication chromosomal mutation?

A: Mutations are defined as sudden heritable change which alters the expression of a gene.

Q: In an XXYY human: two X chromosomes are inactivated in every cell one X chromosome is inactivated…

A: The correct statement for an XXYY human is:2. One X chromosome is inactivated in each somatic cell.

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 is the chromosome abnormality in fragile X syndrome?

A: Moderate mental retardation in affected individuals and mild cognitive impairment in affected…

Q: Discuss the types of experimental observations that Mary Lyonbrought together in proposing her…

A: A sex chromosome also termed as allosomes are involved in the determination of sex in individuals.…

Q: What are regions of chromosomes (or even whole chromosomes) that are heterochromatic in some cells…

A: The chromosome is a threadlike structure that is present in the nucleus and it is made up of nucleic…

Q: Explain Loss of p53 function leads to genomic instability?

A: The TP53 gene provides instructions for making a protein called tumor protein p53 (p53). This…

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.