Though an individual with abberations such as Robertsonian translocation may be phenotypically normal, they can generate gametes through meiosis that have atypical organizations of chromosomes, resulting in recurrent fetal abnormalities or miscarriages. Why, despite these Robertsonian translocations, are affected cells still able to generate typical gametes through meiosis?

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: 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: What would be the amount of DNA picograms during Prophase I, Metaphase I, Anaphase I and after…

A: The amount of the DNA in a cell is generally measured in picogram unit. During the meiosis cell…

Q: 1)Discusses why Meiosis I is referred to as reduction division and why Meiosis II is essentially…

A: In sexually reproducing organisms, a specialized form of cell division known as meiosis results in…

Q: Consider a diploid cell that has 2n = 4 chromosomes: one pair of metacentric chromosomes and one…

A: Introduction :- The major feature of metacentric chromosome is that the central centromere divides…

Q: Can somebody label mitosis and meiosis I/II in reference to whether the chromosomes are diploid or…

A: The process through which a parent cell divides into two or more daughter cells is known as cell…

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: During meiosis I, assuming no crossing over, what chromatid combination(s) will be present at the…

A: Meiosis is the cell division of germ cells to produce gametes (sperm or egg cells) in sexually…

Q: During meiosis, cells undergo two rounds of nuclear and cell division, but only one round of DNA…

A: Mitosis VS. Meiosis Mitosis:When one cell divides to become two daughter cells.Used for growth and…

Q: Given the end results of the two types of division, why is it necessary for homologs to pair during…

A: Cell cycle is a series of changes that occurs in a newly divided cell through which it duplicates…

Q: to produce four aughter cells. If a nondisjunction of an autosome happens during meiosis I, what are…

A: Meiosis : In this type of cell division a parent cell is divided into four genetically different…

Q: 1. A color-blind man married a normal woman. Their daughter, who was phenotypically normal, married…

A: XC = normal X chromosome Xc =Color-blind X chromosome 1). first cross A color-blind man(XcY) X a…

Q: Why do we need to reduce our ploidy level in certain cells

A: meiosis  is the type of cell division which reduces the chromosome number by half, and it is called…

Q: Which is the type ofgamete produced by aheterozygous individual?What is the genotypicalproportion of…

A: Alleles are the two-contrasting form of genes. They are pairs of genes on a chromosome that…

Q: A heterozygous diploid yeast Aa Bb went through meiosis. What percentage of the haploid spores will…

A: Recombination is defined as the process or method by which the DNA pieces are broken down and are…

Q: What is the correct chromosomal condition at prometaphase of mitosis? A B C D E

A: The objective of the question is to identify the correct chromosomal condition during the…

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: In an organism with a haploid number of 7, how many possible combinations of maternal and paternal…

A: According to law to independent assortment :-  Homologous chromosomes get arbitrarily mixed during…

Q: (a) Do you see any differences between the onion and whitefish blastula cells in anaphase? (b) These…

A: Approach to solving the question: Detailed explanation:  Examples: Key references:

Q: A reciprocal translocation between chromosome 1 and 2 in Drosophila resulted in AB//CPQR and…

A: After reciprocal translocation, Chromosome 1 - AB//CPQR Chromosome 2 - MN//ODEF

Q: Indicate the stage of meiosis (e.g., metaphase 2 = M2; prophase 1 = P1; anaphase 2 = A2; etc.) in…

A: Cell division is a process of dividing and multiple the cells to form more cell. There are two types…

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: 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: Please show the process of meiosis through Prophase 2

A: 1. Meiosis I:   - Prophase I: Homologous chromosomes pair up, and cross-over occurs between…

Q: Draw and label the mitotic phases (prophase, metaphase, anaphase & telophase) and meiotic phases…

A: The process in which a cell divides itself to form daughter cells is known as cell division. Cell…

Q: If there are 32 sister chromatieds in a normal somatic cell, what is the haploid number for that…

A: Chromosome are the string like structure that comprises of DNA , histone proteins as well as…

Q: 1) The daughter cells that result from Meiosis 1 are already haploid and unique a) Which even of…

A: Meiosis is a process where a single cell divides twice to produce four cells containing half the…

Q: What can be concluded about the severity of nondisjunction that occurs in meiosis I as opposed to…

A: Nondisjunction is the condition where the sister chromosomes fail to separate properly during cell…

Q: How are chain chromosomes formed and will the formation of this result to sterile or fertile…

A: Although seen rarely among vertebrates, chain chromosomes are a phenomenon that can be seen to…

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…

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.