Consider the panels A-D in Figure 1. Which one panel illustrates the segregation of alleles on chromosomes in a cell of genotype M/m; B/b undergoing anaphase I of meiosis?

Q: An individual  heterozygous for a reciprocal translocation possesses the following chromosomes:  A B…

A: Translocation is caused by the separation of a chromosome segment and its union with a…

Q: to what do correspond respectively the grey, black and dotted lines? Indicate below the name of the…

A: Replication is the process by which the single mother strand helps to produce two daughter strands.…

Q: In the cell depicted below, chromosome #1 contains 2 genes we can track: ruhroh (which has dominant…

A: Meiosis is the cell division process by which a diploid (2n) mother cell divide its nucleus twice…

Q: The different combinations of the G and L alleles by the end of Meiosis illustrates the Mendelian…

A: Gregor Mendel was an Austrian monk who conducted his famous experiment so pea plants first taking…

Q: Please write in digital format Define the following terms: a) Triploid b) Monosomic c) Trisomic d)…

A: Normal cell has a diploid number of chromosomes. Each cell has 23 pairs of chromosomes out of which…

Q: Please demonstrate the chromosomal basis of principal of segregation in a cell heterozygote (Aa)

A: First, the alleles for a diploid cell are found on homologous chromosomes. In this case, the red…

Q: . If the G locus were 50 or more map units from the centromere, what types and proportions of…

A: Tetraploid means the the species has 4 copies of the genes present ie two diploid gametes would meet…

Q: In a diploid organism of genotype A/a; B/b: D/d, the allele pairs are all on different chromosome…

A: Anaphase comes after the process of metaphase. In this stage of cell division, chromosomes which are…

Q: In a cell that has just begun the process of meiosis, as shown, what is the probability that a…

A: Meiosis It is defined as the cell division in which four haploid cells are generated from a single…

Q: Let’s say there is an organism with two pairs of alleles, W/w and Z/z, each pair is located on a…

A: Mitosis is a type of cell division that occurs in all the cells except sex cells. Here the…

Q: An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B •…

A: Chromosome may be defined as the condense form of DNA that can be inherited from one generation to…

Q: In a sample of 1000 patients with Down syndrome, a geneticist discovers that 95% of them are…

A: Trisomy is a kind of polysomy in which three instances of a particular chromosome occurs. Generally…

Q: A wild-type chromosome has the following segments: A B C • D E F G H I Researchers have found…

A: They coil under the light microscope during prophase I and become shorter and thicker and more…

Q: Consult Figure 4, which shows the distribution of chromosome segregation for a cell with genotype…

A: Every eukaryotic cell proliferates by the means of two types of cell cycles. Mitosis, is the mode of…

Q: An organism has a diploid number of 16 in a primary oocyte. (a) How many tetrads are present in the…

A: Meiosis causes a reduction in chromosome number by half. It involves the recombination and pairing…

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: In a diploid organism, two homologous chromosomes synapse at prophase 1 of meiosis.  One of the…

A: Crossing over is the process in which the exchange of genetic material takes place in a cell during…

Q: An equational division of mitosis is occuring for a diploid organism that has three heterologous…

A: Mitosis is a process where a single cell divides into two identical daughter cells (cell division).…

Q: Assume that the diploid number of a certain species is four chromosomes, two large and two small…

A: The metaphase phase is the third phase of mitosis cell division which involves separation of…

Q: Consider an organism of karyotype 2n = 4. Which diagram properly depicts metaphase I?

A: In metaphase I the tightly coiled and condensed pairs of the chromosome will be arranged as homologs…

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: What is the correct number of chromosomes present in each cell at Division 1 in this diagram?

A: In sexual reproduction, formation of gametes in involved. This occurs by the mode of cell division…

Q: If the G locus were 50 or more map units from the centromere, what types and proportions of gametes…

A: Recombination in terms of genetics describes the process that explains the exchange of genetic…

Q: An equational division of mitosis is occuring for a diploid organism that has three heterologous…

A: Mitosis is a kind of equational division. It produces the genetically identical daughter cells.

Q: If the G locus were 50 or more map units from the centromere, what types and proportions of gametes…

A: Introduction Recombination:- It is a process by which pieces of DNA are broken and recombined to…

Q: . When a cell of genotype A/a ; B/b ; C/c having all thegenes on separate chromosome pairs divides…

A: In the process of mitosis, the daughter cells that are produced will have the same genotype.

Q: Different allele combinations can result from non-disjunction in meiosis I or II respectively.…

A: Introduction Nondisjunction occurs when chromosomes fail to separate, resulting in daughter cells…

Q: An equational division of mitosis is occuring for a diploid organism that has three heterologous…

A: Meiosis is a reduction and division. It produces the duaghter cells with half chromosomes.

Q: If this happens in Meiosis I, it results in two gametes that are n + 1 and two gametes that are n -1

A: The result of a normal mitosis or meiosis is that all the progeny cells receive a complete set of…

Q: In meiosis, each centromere has a spindle fiber attached only to one side. In mitosis, each…

A: Meiosis: Reductional division  2n (diploid) => meiosis => n (haploid) Mitosis: Equational…

Q: Draw a Punnett square for the dihybrid cross described below (it is the same story as given for…

A: X linked characters are those where the the gene in question is located on the X chromosome. Females…

Q: The purple and nebbish genes are 8cM away from each other on chromosome 2. Mutations in the purple…

A: Introduction: Genetic Mapping is used to find out the relative position of genes in a chromosome. It…

Q: When 23 pairs of human chromosomes are arranged in a diploid set, this layout  is called a

A: A chromosome is a long DNA molecule with part or the entirety of the hereditary material of a…

Q: An organism has the chromosomes shown below. Let the period represent the centromere. LMNO.PQRST and…

A: Chromosomal aberrations (CA) are a microscopically observable portion of a broad range of polymer…

Q: Which of the four daughter cells shown at right would produce an offspring with trisomy 3 after it…

A: The correct option is explained below.

Q: At the end of S phase, each chromosome has replicated to produce two complete copies that are joined…

A: The number of chromatids on chromosomes doubles after replication, however the nuclei stay diploid…

Q: If an individual possesses a normal chromosome of the sequence ABCODEFG and an inversion of…

A: There are two chromosomes the first one has a gene sequence as follows A-B-C-©-D-E-F-G and another…

Q: Let’s say there is an organism with two pairs of alleles, W/w and Z/z, each pair is located on a…

A: Cell division is a phenomenon takes place inside the cell during which parent cell undergo…

Q: is the same chrosome type of the parent and daughter cells after mitosis an indication that they are…

A: Cell division It is the process through which new cells are produced. It involves two different…

Q: Indicate below the name of the chromosomal regions that are squared and named respectively A and B…

A: John Cairns was the first person to observe the replicating chromosome in E.Coli by autoradiography…

Q: What does each letter in the crossing over in meiosis represent? The picture below is the example of…

A: A homologous chromosome refers to a pair of chromosomes that are inherited from each parent. They…

Q: Indicate the Chromosome Numbers, (NB: indicate the letter to correspondence chromosome Number) B 人

A: Humans cell normally contains 23 pairs of chromosomes or total of 46 chromosomes. 22 pairs are…

Q: In the karyotype shown here, identify the sex chromosomes. Is this individual a male or a female?

A: Introduction Any cell contains a specific number of chromosomes referred to as ploidy level or…

Q: Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many…

A: From the given figure, counting homologous pair as two chromosomes, the total number of chromosomes…

Q: there are 9 chromosome pairs, how many univalents are there at anaphase I on each pole?

A: Anaohase 1 is the  stage of meiotic first division in which the paired chromosome separates and move…

Q: In Question 23, if one chromosome has R and T and the homologous chromosome also has R and T, does…

A: We are authorized to answer only one question at a time, since you have not mentioned which question…

Q: A M m M м M M M m m m B в в B B M M m b b b B B b b

A: The figure shows chromosomal segregation of a cell whos genotype is M/m; B/b. The depiction of the…

Q: what event takes place during meiosis prophase (as opposed to mitosis prophase) that makes it…

A: Cell division is splitting phenomenon which comprises of splitting of parent cell and results in…

Q: The karyotype pictured here represents O A. a normal male O B. a normal female OC.a Down Syndrome…

A: Answer: KARYOTYPE = It is the representation of chromosomes of an individual , from where we can…

Q: based on fig 1. Is this karyotype a male or female? Is there a chromosomal disorder? What type of…

A: Karyotype --  is complete collection of chromosomes of a person it may be a male or female karyotype…

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.