Suppose you have a line of mice that has cytologically distinct forms of chromosome 4. The tip of the chromosome can have a knob (called 4K ) or a satellite (4S) or neither (4). You cross a 4K/4S female with a 4/4 male and find that most of the progeny are 4K/4 or 4S/4, as expected. However, you occasionally find some rare types as follows (all other chromosomes are normal): a. 4K/4K/4

Q: For a hexaploid what is the value of x where x refers to the basic chromosomenumber that makes up a…

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

Q: In humans, chromosome 16 sometimes has a heavily stained area near the centromere. This feature can…

A: So, non disjunction of the chromosomes occurs in the condition when the homologous chromosomes fail…

Q: What is the number of sex chromosomes in male honey bees?

A: Introduction  A sex chromosome is a chromosome that is variable in form, size, and function from an…

Q: Can simple translocations ever be balanced? I know with reciprocal translocations that if you're…

A: Exchange of genetic information between different parts of the chromosome is called genetic…

Q: True or False On Average, half of the gametes produced by one or more crossovers between non-sister…

A: Recombination is the process by which meiosis produces gametes with different allelic combinations…

Q: Two phenotypically normal parents produce a phenotypically abnormal child in which chromosome 5 is…

A: The scenario described is indicative of a rare genetic condition known as unbalanced translocation.…

Q: in metaphase 1 of meiosis, the homologous chromosomes line up side by side along the equator so that…

A: Mitosis and meiosis are two types of cell divisions. Mitosis takes place in the somatic cell and…

Q: An organism has two chromosomes only. Chromosome 1 has its centromere near one end and carries the…

A: Metaphase of Meiosis IHomologous chromosomes are paired up and aligned along the equator of the…

Q: You continue your experiments with the black mutation on chromosome II. You cross the reciprocal…

A: Introduction: The most advancing branch of science is genetics. The study of genetics comprises…

Q: Diploid Number of chromosomes, Sex Chromosomes, (+/- whole) Chromosome (+/- partial) e.g. 47, XY,…

A: Human cell contains 23 pairs of chromosomes.  22 autosomes and 1 pair of sex chromosomes. Human male…

Q: Scenario 2: Down's syndrome can be caused by either a trisomy of chromosome 21 (2n=47 (+21)) or a…

A: Down syndrome is a genetic disorder that can be caused by two main mechanisms:Trisomy 21: This is…

Q: At the end of Meiosis II in human cells (specifically in males, for example), how many gametes are…

A: In a normal cell there are 46 chromosomes that is 23 pairs of chromosomes are there out of which one…

Q: Consider the example of the fusion of chromosome 21 and 14. By itself, this fusion does not cause…

A: In humans, when the long arm of chromosome 21 is joined to the long arm of chromosomes 14 or 15, the…

Q: Two phenotypically normal parents produce a phenotypicallyabnormal child in which chromosome 5 is…

A: The thread-like structure present inside the nucleus is called a chromosome. The chromosome is…

Q: Fetuses whose cells are triploid, that is, contain three full sets of chromosomes, develop to term…

A: INTRODUCTION The DNA molecule is packed into thread-like structures called chromosomes in the…

Q: Draw the structure of the acentromeric chromosome using a line and letters to designate loci in…

A: Inversion is one type of chromosome aberration where the chromosome segment is excised and…

Q: Suppose you discover two interesting rare cytological abnormalities in the karyotype of a human…

A: To find: To find the proportion that has the same karyotype using the given pair of chromosomes

Q: What are the chromosome configuration that will be observed at diakinesis in the following…

A: Chromosome are thread-like structures present inside the nucleus of a cell. Chromosomes are made up…

Q: Diploid Number of chromosomes, Sex Chromosomes, (+/- whole) Chromosome (+/- partial) e.g. 47, XY,…

A: Turner syndrome, a condition that mostly affects the females, which is caused when one of the X…

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: You are transported to a fantasy world where legendary creatures actually exist. In this world, a…

A: Unicorn is a bisexual horse with a single straight horn projecting from its forehead. It is…

Q: Chromosome Chromosome A has genes ABCD-EFGHIJ B has genes 1234-56789.

A: The Correct Option is B Unbalanced nonreciprocal translocation

Q: If a fragment of a chromosome breaks off and then reattaches to the original chromosome but in the…

A: Translocation means a change in location. It generally refers to genetics when part of a chromosome…

Q: Briefly explain why, in humans and other mammals, sex-chromosome aneuploidies are more common than…

A: A chromosome is an organized bundle of DNA found within the nucleus of the cell. Different living…

Q: Homologous chromosomes can be either monads or dyads. Explain. How is it possible to have…

A: Homologous chromosomes are paired chromosomes. In this pair one chromosome comes from mother and one…

Q: What is the notation for the following cases? ( A female having Edwards syndrome (trisomy 18)

A: The chromosomal syndrome notation includes the total number of chromosomes, then the sex chromosome,…

Q: A chromosome with the following gene order has a paracentric inversion of BCDE. A B C D E F • G H If…

A:

Q: How is it still balanced if, let's say we have 100% chromosome A and 100% chromosome B. In simple…

A: Translocation is a phenomena in which genetic material is transferred from one chromosome to be…

Q: A young couple is planning to have children. Knowing that there have been a substantial number of…

A: Robertsonian translocation is a kind of chromosomal abnormality in which two acrocentric chromosomes…

Q: Assume that meiotic nondisjunction event causes trisomy 8 in a newborn. If two of the three copies…

A: Nondisjunction is that the failure of the chromosomes to separate, that produces daughter cells with…

Q: Mitotic nondisjunction can occur, particularly in tumor cells. Assume a single nondisjunction event…

A: The failure to separate homologous chromosomes or chromatids during cell division (mitosis or…

Q: An initial crossover event will occur between A and B, as indicated in the corresponding image.…

A: Exchange of genetic material or chromosomal segments between non-sister chromatids happens during…

Q: Diploid Number of chromosomes, Sex Chromosomes, (+/- whole) Chromosome (+/- partial) e.g. 47, XY,…

A: Klinefelter’s syndrome and one Barr body Klinefelter’s syndrome is due to the trisomy of sex…

Q: Certain plants may have more than two copies of a chromosome. In some wild strawberries octoploid…

A: ExplasnatonPloidy is defined as the number of complete set of chromosomes. For example, an organism…

Q: The following image shows Nondisjunction. Which of the following cells will suffer from a genetic…

A: Nondisjunction is a failure of chromosomes to separate during cell division. This results in the…

Q: A cytogeneticist has collected tissue samples from members of acertain butterfly species. Some of…

A: In the question, there are two groups of butterflies given: the Canadian and Mexican and they were…

Q: Diploid Number of chromosomes, Sex Chromosomes, (+/- whole) Chromosome (+/- partial) e.g. 47, XY,…

A: Aneuploidy is a condition of having fewer or extra chromosomes than the normal genome number of the…

Q: Two chromosomes have the ff. order of genes: Normal Abnormal A B C centromere DEFGHI A B G F E D…

A: Analyzing the Chromosomal Inversiona) Type of Inversion:The abnormal chromosome has a pericentric…

Q: A phenotypically normal boy has 45 chromosomes, but his sister, who has Down syndrome, has 46.…

A: Genetic information is stored in chromosomes, which are long, coiled strands of DNA. Most human…

Q: You are an allele on a single uncondensed chromosome in a Yellow fever-carrying mosquito (Aedes…

A: The somatic cells follow the mitotic process for division and the reproductive cells or gametes are…

Q: A species of a plant has 2n = 16 chromosomes. How many chromosomes will be found per cell in each of…

A: * Monosomic is the condition where one chromosome is absent  * Best example is Turner's syndrome…

Q: Two nonhomologous chromosomes have the following segments, where * represents the centromere:…

A: Two nonhomologous chromosomes have the following segments, where * represents the…

Q: Consider a diploid organism in which the somatic cell chromosome number is 42. Assume cytokinesis to…

A: Cell division is an important process which helps to keep the cells growing in number. This enables…

Q: You are an allele on a single uncondensed chromosome in a Yellowfever-carrying mosquito (Aedes…

A: The fundamental and active process by which a parent cell after replication of its components,…

Q: Diagram A represents a chromosomal inversion event. A, B, C, D, E, F, are chromosomal loci.…

A: An inversion is a type of chromosome transposition in which a chromosome segment is inverted…

Q: Two phenotypically normal parents produce an abnormal son in which chromosome 14 is missing part of…

A: Translocations are chromosomal rearrangements caused by the exchange of components between two…

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.