Why does a single X chromosome cause infertility and other abnormalities in Turner Syndrome subjects?

Q: How can epistasis explain incomplete penetrance?

A: Penetrance in genetic terms refers to the ratio of individuals that carry a specific allele of a…

Q: Explain why a triploid individual is usually infertile?

A: The individual having three sets of haploid chromosomes (3n) is termed as triploid. Triploid…

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: What is the gene in the human chromosome that determines the "maleness"?

A: Gene is the sequence of nucleotides that encode a particular protein. The genes are present in the…

Q: Which parent passes on the Y chromosome to the child?

A: Part or all of the genetic material of an organism in a long DNA molecule is called a chromosome.…

Q: Which pair number represents the sex chromosomes?

A: The karyotype is the type of chromosomes or number of chromosomes present in the nucleus of a…

Q: Why are newborns with an abnormal sex chromosome number more likely to survive than those with an…

A: Humans have a total number of 46 chromosomes that is 23 pairs of chromosomes in which 22 of them are…

Q: What sex ratio would you expect among the offspring of a cross between a normal mape mouse and a…

A: Sex ratio is defined as the ratio of males and females in the population. Generally in sexually…

Q: If a genetic male failed to produce MIS during fetal life, what would the result be?

A: The Müllerian-inhibiting substance (MIS) is a protein that is secreted from the testes, which leads…

Q: What does the sex chromosome genotype XXY produce in humans?

A: In humans, two sex chromosomes are there; X and Y. The sex of the individual depends upon the…

Q: Why is the development of individuals with Klinefelter's and Turner's syndromes relatively normal,…

A: This syndrome occur due to presence of an additional copy of X chromosomes resulting into karyotype…

Q: What does the sex chromosome genotype XXX produce in humans?

A: Human beings have two types of chromosomes found in their body, they are, autosomes and allosomes.…

Q: How is it that some chromosomal abnormalities are incompatible with life as early as immediately…

A: Chromosomal abnormalities are one of the reasons of miscarriage and stillbirth and spontaneous…

Q: how can I Identify  the source (mechanism) and types of increased mutations in older mother oocytes…

A: Delayed parenthood has increasingly adverse effects on reproduction. In an older male, sperm quality…

Q: What is the difference between the X-Y and X-0 systems of sex determination?

A: The biological system that is known to determine the development of sexual characteristics is known…

Q: Although triple-X human females typically have normal offspring, what kinds of gametes, with respect…

A: Introduction In humans, the X chromosome is one of two sex chromosomes, the other is the Y…

Q: Why is it necessary for gametogenesis to reduce the chromosome number of the sex cells by one-half?

A: Ans: Gametogenesis: It is the biological process in which haploid or diploid cells divide as well as…

Q: Why is an X chromosome needed for survival?

A: The sex chromosomes or allosomes are X and Y chromosomes which determine the biological sex of an…

Q: How can the chromosome number of an individual be tested before they are born?

A: Chromosomes are the carrier of the genetic information that an organism carries from one generation…

Q: A human female with Turner syndrome (45,X) also expresses the X-linked trait hemophilia, as did her…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

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: What does the sex chromosome genotype XY produce in humans?

A: Sex chromosome, either of a pair of chromosomes deciding whether a individual is male or female.…

Q: Draw a Punnett square.  cross an XX woman with an XY man. How many kinds of eggs can a woman…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: How can the chromosome number of an individual be tested before he or she is born?

A: Genetics is a part of science worried about the investigation of genes, genetic variety, and…

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: 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: 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 Trisomy test?

A: The chromosomes are the thread like structure that contains hereditary information in the form of…

Q: What are the side effects of Irregularities in the process of chromosome formation or fetal…

A: Mutations are sudden changes that are inheritable and can contribute to a permanent change in the…

Q: What is the cause of aneuploidy?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: What does the sex chromosome genotype OY produce in humans?

A: Chromosomes are the unit of inheritance that carry genetic information from one generation to…

Q: A diploid organism has five pairs of chromosomes in each somatic cell. Assuming that no crossing…

A: When the DNA molecule is well organized and packaged into thread-like structures in the nucleus of…

Q: How many copies of each gene are found in the diploid cells in a woman’s body?

A: Introduction Any cell contains a specific number of chromosomes it is referred to as ploidy level or…

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XXY with…

A: A gene is a unit of genetic material present within the DNA (deoxyribonucleic acid). Each gene…

Q: What is x linked genes?

A: DNA and RNA are nucleic acids that are capable of transmitting hereditary information from one…

Q: What does the X/Y pair of chromosomes determine in humans?

A: Chromosomes are DNA-carrying structures located in the center (nucleus) of cells. The substance that…

Q: whar are the meiotic events that could lead to the birth of an individual with either Patau syndrome…

A: The meiotic events causing Patau syndrome, or Turner syndrome in an individual. Introduction: Patau…

Q: What does the sex chromosome genotype XO produce in humans?

A: Step 1 Allosomic genetic determination of sex is determined by distinct chromosomes called sex…

Q: What is the inactivation of the X chromosome? What is a Barr body?

A: It is believed that women are more susceptible to X chromosome inactivation than men are. X…

Q: How many polar bodies will be produced by 32 primary oocytes considering that their meiosis II is…

A: Gametogenesis is the process of formation of haploid gametes from undifferentiated diploid germ…

Q: Give the typical sex-chromosome complement found in the cells of people with Turner syndrome, with…

A: Chromosome complement refers to the entire set of chromosomes in the nucleus of a cell in a…

Q: Why is trisomy 21 not lethal?

A: Trisomy 21 an equivalent name for Down syndrome is the most common genetic disorder. It causes both…

Q: Why is meiosis necessary for sexual recombinations?

A: In the process of meiosis, a single cell divides twice to produce four haploid daughter cells…

Q: what is Meiotic Nondisjunction?

A: Meiosis is also known as a double division that occurs in a diploid cell and gives rise to four…

Q: What does the sex chromosome genotype XX produce in humans?

A: The sex determination in an organism is based on the inheritance of sex chromosomes. In almost every…

Q: What does Germline DNA refers to?

A: Deoxyribonucleic acid (DNA) is the genetic material that carries information from one generation to…

Q: What is the Y Chromosome ?

A: A chromosome is a lengthy DNA molecule that contains all or parts of an organism's genetic material.…

Q: What does the sex chromosome genotype XYY produce in humans?

A: A type of genetic condition where a male has an extra Y chromosome, is called an XYY syndrome. 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.