Suppose you discover two interesting rare cytological abnormalities in the karyotype of a human male. (Akaryotype is the total visible chromosome complement.) There is an extra piece (satellite) on one of the chromosomes of pair 4, and there is an abnormal pattern of staining on one of the chromosomes of pair 7. With the assumption that all the gametes of this male are equally viable, what proportion of his children will have the same karyotype that he has?

Q: Diploid somatic cells of elephants have 56 chromosomes. If nondisjunction of one of a male…

A: Meiosis is defined as the reductional division wherein the parent cell divides into 4 daughter cells…

Q: Very rarely, one member of a pair of identical (monozygotic) twins will have Turner syndrome (XO)…

A: A chromosomal disorder in which a female is born with only one X chromosome leading to developmental…

Q: In humans, XO individuals are females with Turner syndrome and XXY individuals are males with…

A: The failure of homologous chromosomes (sister chromatids) to separate properly during cell division,…

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: Sex-reversed females with XY were found to be missing SRY gene on their Y chromosomes, while…

A: Sex determination in humans is a complex process impacted by the combination of sex chromosomes and…

Q: For a male with a genotype of AaBb Draw a primary spermatocyte which has just entered diakinesis be…

A: Primary spermatocyte : During spermatogenesis the male germ cells called spermatogonial cells divide…

Q: Imagine a germ cell for an animal that is 2n=4. Gene A and B are found on chromosome one, and the…

A: Meiosis is the cell division process that is responsible for the production of four haploid (n)…

Q: If nondisjunction occurs in humans for one pair of homologous chromosomes during Meiosis 1, what…

A: Humans have 23 pairs of chromosomes i.e. 46 chromosomes (diploid). After meiosis, each of the gamete…

Q: A woman has two alleles of gene M (M and m), and two alleles of gene N (N and n). Both genes are on…

A: As per our guidelines, we are supposed to answer only three sub-parts. Kindly repost the question…

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: An individual that is homozygous AABBcc is crossed to an individual that is homozygous aabbCC…

A: A chromosome is a highly condensed form of DNA and It wrapped into Nucleosomes. Humans have 22…

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: An individual inherits a set of translocated chromosomes (2 and 3) from one parent and a wild type…

A: For certain basic eukaryotes, such as yeast, meiosis is the method used for survival. Yeast…

Q: When crossing the mythical one-horned snail (Snaiun) you notice that blue (B) is dominant to…

A: Given: In one-horned snail: Blue - dominant - B and Green - recessive - b Long - dominant - L and…

Q: A couple is planning to have three children. What is the probability of having all boys? *

A:

Q: A color-blind woman with Turner syndrome (XO) has a father who is color blind. Given that the gene…

A: Given that the gene for the color-blind condition is recessive and X-linked and a color-blind woman…

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: Answer the following questions with either True or False. Provide a justification for your choice.…

A: In an individual, chromosomes occur in pair that is why there are two alleles (alternative forms of…

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: e (ebony) gene is an autosomal gene in Drosophila melanogaster. A male ophila has the genotype of…

A: Gametes produced will be of four types   I.e 2n where n is the number of heterozygous allele. Here…

Q: Both hemophilia (h) and favism (gd) are inherited as X-linked recessive traits. Hemophilia is an…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

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

A: Option B

Q: A woman with no phenotype is known to have a 14:21 translocation. 1. With respect to only…

A: The rearrangement of chromosomes in which one portion of the chromosome is breakdown and is attached…

Q: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two…

A: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two…

Q: A woman with a balanced reciprocal translocation of Chromosomes 4 and 20 (karyotype, right panel…

A: In a balanced reciprocal translocation genetic material is exchanged between two chromosomes with no…

Q: Show via a diagram how the product(s) of a meiotic (either I or II) nondisjunction involving the X…

A: Kilnefelter's Syndrome:  Klinefelter's syndrome is a genetic disorder in which a boy is born with an…

Q: Considering an organism with three pairs of homologous chromosomes, how many different kinds of…

A: Answer : Since there are 3 pairs of homologous chromosomes, therefore  2N = 6 N = 3  to Calculate…

Q: The letters below represent genes found on different chromosome pairs. Letters that are similar…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

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: On average, what proportion of the genome in the following pairs of humans would be exactly the same…

A: Homologous chromosomes are a pair of chromosomes, each coming from each of the parent, mother and…

Q: Which of the following karyotypic sex chromosome abnormalities result(s) in a male phenotype?…

A: Genetic diseases are caused by mutations in genes.

Q: Show the complete phases of meiosis

A:

Q: n garden peas, yellow seeds (Y)(Y) are dominant to green seeds (y)(y), and inflated pods (I)(I) are…

A: There are four possible combinations of gametes for the YyIi parent. Half of the gametes get a…

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: Suppose you have a line of mice that has cytologicallydistinct forms of chromosome 4. The tip of the…

A: When we cross a 4K/4S female with a male, the progeny obtained are 4K/4 or 4S/4 as expected. We also…

Q: For this question use the following symbols for duplicated chromosomes X, Y, and 1, and draw the…

A: Each and every cell of an organism’s body undergo cell division, which helps in maintaining the…

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: In which parent did the nondisjunction occur? Explain and/or illustrate. Did nondisjunction occur at…

A: Non-disjunction indicates that chromosomes are not properly separated, resulting in an additional or…

Q: Correct Answer: b. 1/8

A: The chances of gamete will only contain chromosome of maternal origin is 1/8 percent

Q: Assume that A, B, C, D, E, F, and G are autosomal genes on different chromosomes. From the mating…

A: Here we will use the general multiplicity rule for finding the probability. According to the…

Q: Which of the following is/are (a) reason(s) why crossing over between two genes on the same…

A: Introduction:-  crossing over is the exchange of genetic material ( segments of chromosomes )…

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.