A color-blind woman with Turner syndrome (XO) has a father who is color blind. Given that the gene for the color-blind condition is recessive and X-linked, provide a likely explanation for the origin of the color-blind and chromosome constitution in the color-blind woman.   nondisjunction in the mother in meiosis I or II nondisjunction in the father at meiosis I no abnormalities had to occur to produce this daughter nondisjunction in the father in meiosis I or II nondisjunction in both the mother and father in meiosis I.

Q: In meiosis, after telophase I, do other cells (comparing one another) have the same combination of…

A: Cell cycle consists of stages of cell growth and reproduction. In M phase of cell cycle, cell…

Q: In 1-3 sentences each define the follwing terms:  genetic linkage, crossing over, X-inactivation,…

A: The study of the heredity, variations is known as Genetics. The genetics that is related to the…

Q: Duplications and deletions can be detected during meiosis by the presence of extrachromosomal loops…

A: Mutation are the abrupt changes that occur in the DNA sequence resulting in altered phenotype.…

Q: 1 2 3 4 5 i、月 6 8 9 10 11 12 13 14 15 16 17 18 19 20 Y 21 22

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

Q: Starting with a 2n = 32 cell, at the end of meiosis II there will be Multiple Choice two cells; each…

A: Meiosis is a type of cell division that produces four genetically diverse haploid daughter cells…

Q: term for random alignment of the homologs along the metaphase plate of meiosis

A:

Q: Draw a simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome.

A: To draw: A simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome

Q: Given a diploid number of 2N=8 and two crossing-over events, trace the fate of these chromosomes…

A: Meiosis is the process of cell division used by germ cells to produce haploid cells so they can…

Q: A female is heterozygous for an X-linked gene.  If nondisjunction happens for the sex chromosomes…

A: Introduction :  Aneuploidy is the term used to describe a cell that has an abnormally high/low…

Q: Describe one way that the events of prophase I vary from those of prophase ll during meiosis.…

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

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

A: The event of nondisjunction occurs when the chromosomes fail to separate during the process of…

Q: Table 8.1 shows that Turner syndrome occurs when an individual inherits one X chromosome but lacks a…

A: Chromosomal deletion syndrome occurs when whole or part of chromosomes are missing. Turner Syndrome…

Q: The incidence of Down syndrome will be high (nearly 50%) among the offspring of a parent with Down…

A: Down Syndrome is a chromosomal disorder where trisomic conditions occurs in 21th chromosom. The…

Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…

A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.

Q: A woman with no phenotype is known to have a 14:21 translocation. Please answer questions 1 and 2.…

A: Between two acrocentric chromosomes where the centromere is at one end of the…

Q: EXAMPLE 2: The parents in the family above produce another son, this time with two Y chromosomes and…

A: Non disjunction is a event where either homologous chromosomes in meiosis I or sister chromatids in…

Q: The following Pedigree shows an unknown genetic disorder. The disorder is believed to be caused by…

A: In terms of genetics, a pedigree is a diagram demonstrating the manner in which a trait or medical…

Q: List some syndromes that result from inheritance of anabnormal sex chromosome number

A: Sexual defects in chromosomes are sex-specific. Normal males inherit a chromosome of X and Y, while…

Q: A couple comes into a fertility clinic. A chromosome preparation is made for each and the male is…

A: Introduction :- A karyotype is a collection of all metaphase chromosomes in a species' or individual…

Q: Non disjunction occurs when chromosomes fail to separate during meiosis, resulting in an abnormal…

A: Mitosis and meiosis are the two types of cell division that occur during M phase of cell cycle. M…

Q: The gene associated with the recessive disorder nemophilia is on the X chromosome, where n is the…

A: Option B

Q: Draw a pair of chromosomes as they would appear during synapsis in prophase I of meiosis in an…

A: In chromosomal duplication, some of the part of chromosome has been doubled up. In duplication, the…

Q: A diploid cell with three pairs of homologous chromosomes is shown on the left. Each letter…

A: Mitosis and meiosis are the two different types of cell division. Meiosis occurs in normal somatic…

Q: List the alleles in cach of the gametes crcated at the cnd of meiosis, (Write the number for 2/4…

A: Cell division occurs in all the cells of the body and this process is of two types: Mitosis is the…

Q: Draw a haploid mitosis of the genotype a+ ; b.

A: Mitosis and meiosis are two kinds of cell division in which chromosomes are segregated into daughter…

Q: The chromosomes in the illustration below are found in a male betta fish and carry the gene for…

A: Mendel proposed the laws of inheritance based on the results of his hybridization experiments. He…

Q: Briefly illustrate how nondisjunction in meiosis can result in Down syndrome.

A: Down syndrome is commonly resulting from a disorder within the cellular division called"non…

Q: A Calico cat (orange and black striped fur) is born with Klinefelter syndrome (XOXBY) from parents…

A: When a male is born with an extra copy of the X chromosome, he is diagnosed with Klinefelter…

Q: Which phase of meiosis explains Mendel's Law of Segregation? Anaphase I Anaphase I| O Metaphase II O…

A: Answer. Meiosis is a type of cell division that occurs in germ cells that reduces the number of…

Q: all of his sons   all of his daughters   half of his daughters and half of his sons   half of his…

A: X- inactivation or lyonization is a process in which one of the X- chromosome is inactivated in…

Q: Duchenne muscular dystrophy (DMD) is caused bya recessive mutant allele of an X-linked gene…

A: Duchenne muscular dystrophy (DMD) is a progressive form of muscular dystrophy that results in muscle…

Q: These circles represent cells. The first cell is going through meiosis, and the 2 meiotic divisions…

A: One cell (parent) splits into two or more offspring (daughter cells) is referred to as cell…

Q: 4. Jane's father suffers from hemophilia B and her maternal grandfather was colorblind. Her first…

A: Sex -linked recessive inheritance : Most affected individuals are male. Affected males result from…

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.