Below is a pedigree 3 III 4 5. 6. 7 8 OOO O 4 5 6 7 8 9 IV Inheritance of the disease by the II-3 male from his father rules out what type of inheritance. Explain your reasoning.

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: Explain why a woman carrying the gene forhemophilia can produce two hemophiliac sonswhen she is…

A: A disorder in which blood doesn't clot normally because of a lack of sufficient blood-clotting…

Q: The manifestation of symptoms of a recessive disorder requires the loss of function of both copies…

A: Genes play a crucial role in determining an individual's traits and susceptibility to genetic…

Q: Which of these results from aneuploidy?a. Turner syndromeb. fetal alcohol syndromec.…

A: Introduction: Ploidy refers to the number of chromosomes present in the nucleus of a cell. In a…

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: X-linked diseases

A: X-linked recessive conditions include red-green color blindness and hemophilia A: Red-green color…

Q: During anaphase I, the homologues separate differently and therefore the daughter cells following…

A: Meiosis is reductional division. Mitosis is equational division.

Q: 2. Mode of Inheritance:

A: Inheritance  In biology, inheritance is a process of transferring genetic material or information…

Q: Define trisomy 16.

A: Chromosome disorders are non-inheritable abnormalities in which individuals possess either extra or…

Q: The etiology of Down Syndrome can be best described as mental deficiency O three copies of…

A: Etiology of a disease refers to the cause of that disease or disorder.  The word id derived from the…

Q: There are a number of tests that can be done to look for genetic disorders in a fetus. Imaging 36.…

A: The CVS procedure and the amniocentesis procedure involves the prenatal diagnosis and helps in…

Q: by what age a person with trisomy 16 can survive?

A: due to nondisjunction of chromosomes in maternal meiosis I stage, there are high chances of more…

Q: Explain how X-linked inheritance differs from inheritance ofautosomal traits.

A: X-linked inheritance There are two possibilities if it inherit in dominant and the recessive.…

Q: Which of the following diseases does not generally follow Mendelian rules of inheritance? breast…

A: Breast Cancer

Q: An expecting mother underwent a fetal blood test to determine if her unborn child has a genetic…

A: Introduction:-

Q: Which of the following is an example of a teratogen?

A: Any agent that can disturb the development of an embryo or feotus is called teratogen.

Q: What is meant by Trisomy 21 ?

A: Chromosomal abnormalities are the type of genetic disorders caused due to the change in one or many…

Q: .In humans, how does the inheritance of sex-linked traits differ from autosomal traits?

A: A genetically defined trait is one that is inherited. Mendelian genetics dictates that inherited…

Q: Explain why a male inheriting an X-linked recessive gene only needs one copy of that recessive gene…

A: In a x-linked recessive gene is a gene which is found on the X-chromosome of an individual. A normal…

Q: Which of the following statements BEST describes this process. O Daughter cells divide twice to form…

A: Gametes are defined as the haploid (n) reproductive cells formed in sexually reproducing individuals…

Q: why Autosomal Aneuploidy Is Usually Lethal?

A: Autosomal monosomies are always fatal in, humans. The Presence of low dosage of proteins embryos…

Q: If a man has an X-linked recessive disease, can his sons inherit that disease from him? Why or why…

A: The X-linked recessive disease is caused by a mutation in X chromosomes. X and Y are two sex…

Q: Fill-in the blank A person who is heterozygous for sickle-cell anemia a. has the disease b. C. does…

A: Sickle cell anaemia is an autosomal recessive disease meaning two defective or mutated alleles are…

Q: In X-Linked Dominant disorder, a gene responsible for a genetic disorder is located on the X…

A: X-linked dominant inheritance is the genetic conditions associated with mutations in genes on the X…

Q: Which of the following disorders arises from translocation events?   Huntington’s disease   Burkitt…

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

Q: ne trisomy 21.

A: Gene alterations in an organism have profound effects on both cellular and physiological levels.…

Q: A woman has an X linked condition on one of her X chromosomes. This chromosome can be inherited by…

A: Chromosomes are thread-like structures which are located inside the nucleus of cells of both animal…

Q: Differentiate nuclear form extrachromosomal inheritance and solve problems illustrating the latter.

A: Inheritance is the transmission of characters from the parents to the offspring, i.e members of each…

Q: For an individual with the XXXYY chromosomal composition, the expected number of Barr bodies in…

A: Barr body is an inactivated X-chromosome in female cells in the interphase since they have more than…

Q: Sex-linked inheritance refers to: O the inheritance of genes that influence expression of phenotypic…

A: Introduction: A genetically determined characteristic or condition is known as trait. It is the…

Q: In the sex-linked inheritance pattern of hypertrichosis, a man who carries an X-linked allele will…

A: Hypertrichosis is a sex-linked trait which means that it is caused by a gene located on the X…

Q: Under what condition might a human male have the XX sex chromosome complement?   It is not possible.…

A: Male develop from Y chromosome because of the presence of SRY genes and SOX9 gene.  These genes are…

Q: How long can you live with Trisomy 18?

A: Trisomy 18 also known as Edwards syndrome. It is a chromosomal abnormality. Chromosomes are…

Q: During meiosis, the number 21 chromosomes did not separate correctly. What disorder is caused by…

A: Meiosis is a cell division used to produce gametes (sperm or egg cells), in sexually reproducing…

Q: Two parents who do not have color blindness have a daughter who has only one X chromosome and is…

A: The Color blindness (color vision deficiency) is the decreased ability to see color or differences…

Q: In mitochondrial disorder, mutation in nuclear DNA may follow autosomal dominant, autosomal…

A: Mitochondrial disease, also known as a mitochondrial disorder, is an umbrella term for a range of…

Q: Describe how X-linked traits are inherited and explain how X-linked inheritance is different from…

A: Inheritance is the process by which the genetic information is passed on from the parent to child.

Q: Number of FEMALE offspring that would have the condition of an X-linked trait, if an affected man…

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

Q: Which one of the following phenotypes is passed from mother to all her male and female children? O…

A: In cytoplasmic inheritance, genes are passed from one generation to another which are located on…

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.