A variety of abnormalities in the numbers of sex chromosomes exist because of nondisjunction during gametogenesis. Discuss the signs and problems associated with conditions such as Klinefelter and Turner syndromes.

Q: Sex determination of child is done by whose chromosome?

A: Chromosomes are the thread like structures which are located in the nucleus. There are 23 pairs of…

Q: List the diagnostic features (genetic or cytological) that are used to identify these chromosomal…

A: In the nucleus of a cell – DNA is present in the form of chromosomes. These are compact structures…

Q: During the formation of a Barr body, histone H3 is methylated by PCR2 (polycomb repressive complex…

A: Barr body is also known as X chromatin, is inactive X chromosome in a cell where there is more than…

Q: A.If the diploid human chromosome number (2n) =46, what will be the chromosome number per cell in…

A: Meiosis is the cell division process that involves division of a diploid (2n) mother cell and…

Q: What is the difference between sex-linked disease/disorder and sex chromosome disease/disorder?

A: Sex chromosomes are in the form of XX in females and in males, it is in the form of XY. When there…

Q: Give the phenotypic effects and chromosomal aberrations of the following syndromes/disorders: Down…

A: DOWN SYNDROME. Down syndrome is the most common chromosomal disorder due to the autosomal trisomy of…

Q: Daniel is an adult with XXY chromosomes. Since puberty, his penis has been unusually small. His…

A: A normal human adult has 46 chromosomes with sets as 44+XY (for male) and 44 + XX (for female). Any…

Q: List the gene(s) responsible for producing a phenotypic male.

A: Gene is the central physical, and functional unit of heredity is a chromosome. Gene consists of the…

Q: Give several examples of chromosome number disorders.

A: Genetic disorders are defects that are caused by any genetic mechanism like mendelian genes ,multi…

Q: Describe how nondisjunction results in aneuploidy disorders, and describe the syndrome/ symptoms/…

A: Nondisjunction means the failure of homologous chromosomes or sister chromatids to separate during…

Q: Discuss why X-linked disorders are more common thanY-linked disorders.

A: Inheritance or heredity is passing-on one trait from the parents to the progeny by either asexual or…

Q: Give the term that describe that will describe the morphology of the that carries N alleles and also…

A: Meiosis occurs during gamete formation.

Q: A homozygous dominant female has kids with a male that has DMD. Show work    a) What percent of…

A: Duchenne Muscular Dystrophy (DMD) is an X-linked recessive disorder, meaning the defective gene…

Q: Which of the following can arise from a zygotic mitotic problem in an individual with a normal XY…

A: Following condition arised due to Error in zygote mitosis in an individual with XY genotype.

Q: Describe four X-linked recessive disorders

A: Recessive Disorder : To have an autosomal recessive we inherit two mutated genes ,one from each…

Q: Can a woman who is affected by an X-linked dominant disorder have a child who is not affected? Why…

A: In physiology, X-linked dominant disorder is defined as genetic disorder occurs due to X chromosome…

Q: Explain why X-linked recessive traits are often more common in males but X-linked dominant traits…

A: Humans have two sex chromosomes X and Y in their genome which is responsible for their sex. Males…

Q: Determine the probability of the following outcome if two individuals heterozygous for the disease…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: 3 4. 11 12 13 14 15 18 19 21 22 Y 2. 20

A: Karyotyping is the process by which photographs of chromosomes are taken in order to determine the…

Q: List the genetic disorders resulting from chromosome deletions:

A: The genetic disorders are caused due to absence or excess or abnormal arrangement of one or more…

Q: SUBJECT-GENETICS TOPIC: Inheritance Related to Sex Identify some form of abnormalities wherein it…

A: Genetic abnormalities - Genetic abnormalities are conditions caused by changes to the genes or…

Q: Explain the cause of monogenic diseases ?

A: Genes are the functional unit of heredity. It contains information that is transferred from one…

Q: List two examples of sex-linked disorders.

A: Sex-related disorders, also called sex-linked diseases are inherited by one of the X or Y…

Q: BJE the diploid human chromosome number (2n) =46, what will be the chromosome number per cell in…

A: Introduction:   Cell cycle is an ordered sequence of events occurring in a cell. Cell cycle results…

Q: Briefly describe nondisjunction in meiosis and identify several potential consequences. In other…

A: Meiosis is the type of cell division that occurs in the sex cells to produce gametes in the form of…

Q: Explain the genetic consequences of chromosomal configuration at different stages of meiosis.

A: There are few important points about meiosis are as follows ; We know that meiosis is a specialized…

Q: Explain how the X and Y chromosomes are able to pair together in meiosis as homologous chromosomes.…

A: Meiosis is the phenomenon that occurs in any life cycle that involves the process of sexual…

Q: major factors contributing to the clinical consequences of structural chromosome abnormalities

A: There are three main categories of genetic disorders: chromosomal abnormalities - These types of…

Q: What is Trisomy test?

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

Q: Explain why X-linked disorders affect males more often than females.

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

Q: Explain how nondisjunction in meiosis is responsible for chromosome abnormalities such as Down…

A: Meiosis is the phenomeon that is well known term and usually discreibe in which diploid cells divide…

Q: n why many sex-linked diseases occur more frequently in men than women.

A: a. Chromosomes are the carriers of genes and they are located on both the autosomes and sex…

Q: Match the disease with the pattern of inheritance Phenylketonuria Achondroplasia Autosomal Autosomal…

A: Mutations are changes in an organism's DNA sequence. The health of an organism can be significantly…

Q: How is it that genetic abnormalities that include an extra Y chromosome do not have a severe…

A: Genetically all human males normally have a XY chromosome whereas the females have a XX pair. They…

Q: Determine the difficulties that occur in the diagnosis and treatment of cystic fibrosis, due to…

A: The protein encoded by the CFTR gene, which is located on the long arm of chromosome number 7, is…

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.