How can alteration in chromosome number or structure impact living organism? Explain how Down's syndrome, Turner's Syndrome or Kleinfelter syndrome can occur? How could meiosis prodcue a gamete with 2 copies of a homologous chromosome, instead of 1 copy?

Q: Common red clover, Trifolium pratense, is a diploidwith 14 chromosomes per somatic cell. What…

A: Ploidy is the change in the number of chromosomes among organisms. It can be distinguished into two…

Q: . Common red clover, Trifolium pratense, is a diploidwith 14 chromosomes per somatic cell. What…

A: Somatic cells also are known as vegetal cells have two sets of chromosomes and are thus considered…

Q: How many genes are there present on chromosome 13 ?

A: Chromosomes are the carrier of genetic material deoxyribonucleic acid (DNA). They are coiled in…

Q: If a chimpanzee has a haploid (N) chromosome number of 24, how many chromosomes will be found in…

A: A chimpanzee has 24 pairs of chromosomes in diploid condition and haploid cells such as gametes…

Q: if a gamete has 10 chromosomes, what is the diploid number of the organism’s cell that formed the…

A: Reproduction is the process of producing young ones from the parent.

Q: where is the chromosome abnormality? (chromosomes 1-23)

A: The chromosomal abnormality is the result of errors in the cell division following meiosis or…

Q: How do we know that chromosomes exist in homologous pairs?

A: The eukaryotic cells contain different organelles like lysosomes, mitochondria, Golgi apparatus,…

Q: How many chromosome duplications take place in Meiosis?

A: Meiosis: It is the process of cell division forming four daughter cells that contain half of the…

Q: What condition results from the fusion of a normal gamete (n) and a gamete missing a chromosome (n –…

A: Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly…

Q: An important function of meiosis is to reduce the chromosome number to exactly half. How is this…

A: Meiosis: Meiosis is a form of cell division that produces four gamete cells by reducing the number…

Q: How can duplications arise?   A. by uneven crossing over during meiotic prophase     B. by the…

A: by uneven crossing over during meiotic prophase

Q: Define the Protein structure that forms between the homologous chromosomes of prophase I of meiosis…

A: The synaptonemal complex (SC) is a protein structure that forms between homologous chromosomes (two…

Q: What would be the result from a nondisjunction of chromosome 21 in a zygote that is 46,XY? Explain…

A: In genetics, nondisjunction refers to chromosomes or sister chromatids that do not separate properly…

Q: If an organism's diploid number of chromosomes is 10 (2n = 10), how many %3D different possible…

A: The diploid is a state of the cell when the cell has two sets of similar kind of chromosomes and the…

Q: If a diploid cell contains eight chromosomes, how many possible random arrangements of homologs…

A: Meiosis is the type of cell division in which one diploid cell divides to form 4 haploid daughter…

Q: How many chromosomes does the original parent cells have at the end of meiosis? Are the daughter…

A: Meiosis is a type of cell division that leads to the formation of haploid gamete cells during the…

Q: If a diploid a 40 pair of chromosomes, what is the chromosome number by the end telophase?

A: Introduction: Cell cycle is an ordered sequence of events occurring in a cell. Cell cycle results in…

Q: How does anaphase I of meiosis differ from anaphase of mitosis? Does the number of chromatids per…

A: The cell is the basic structural and functional unit of life. It carries out various functions in…

Q: If a diploid cell entering meiosis has 12 chromosome pairs, what is the number of possible…

A: Meiosis is a process of cell division, where cell divides twice to produce four daughter cells which…

Q: How do we know whether two chromosomes are homologous?

A: Homologous chromosomes are made up of chromosome pairs having  Similar length, Similar centromere…

Q: Describe the events taking place during meiosis? What are the different phases? What is the…

A: Meiosis is a sort of cell division that occurs in sexually reproducing organisms' germ cells and is…

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: Where are chromosomal fragments of non sister homologs exchanged and remain as part of the process…

A: Crossing over happens all the time in  prophase I (Meiosis)  before formation of tetrads area unit…

Q: Assume that during meiosis I none of the C chromosomes disjoin at metaphase, but they separate into…

A: Cellular division is the process of one cell splitting into many. This process is present in all of…

Q: If an organism has a haploid number of three, how many tetrad structures will align on the…

A: If an organism has a haploid number of three, how many tetrad structures will align on the…

Q: For an organism with a diploid number of 6, how are the chromosomes arranged during metaphase?

A: Cell development and division of DNA and cells form a cell cycle. Genetically regulated events…

Q: In what phase of meiosis is chromosome recombination most common?

A: Introduction :- Meiosis is a process in which a single cell divides twice to produce four cells with…

Q: Can structural aberrations on certain chromosomes lead to aneuploidy? If yes, explain.

A: If a sex cell affected by nondisjunction undergoes fertilization, the resulting offspring will have…

Q: The period between meiosis I and meiosis II is called interphase II.Does DNA replication take place…

A: DNA replication is a complex process in which DNA makes an exact copy of itself. It takes place in…

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

A: Meiosis is the process by which gametes are produced. This is beneficial to recover the mixture of…

Q: The diploid chromosome number of an organisms is 8. How many of each of the following are present in…

A: Every organism has a fixed number of chromosomes. The number of chromosomes remains constant for a…

Q: How does the way chromosomes line up in Metaphase I of meiosis differ from the way they line up in…

A: Metaphase is a stage of cell division in the eukaryotic cell cycle in which chromosomes are at their…

Q: Given the diploid chromosome number highlighted above, what is the haploid chromosome number?

A: Cell division is the process of division of cell which occurs by two process - Mitosis Meiosis…

Q: In a diploid cell for which 2n = 20, how many chromosomes will be present in daughter cells after…

A: Cell division forms a significant part of the cell cycle. During cell division, the parental cell…

Q: How would the mutation of a single chromosome in metaphase 1 of meiosis affect the process of…

A: Meiosis, also known as reductional division, refers to the division of a single cell into four…

Q: With two pairs of homologous chromosomes, four kinds of gametes can be produced. How many kinds of…

A: Gametes are formed by the process of meiosis in the gamete mother cells.

Q: Why are changes in chromosome number almost always more severe than changes in chromosome structure?

A: Introduction  Chromosomal aberrations are the common cause of abnormal development of the embryo or…

Q: Why do you think that humans with trisomy chromosome 13, 18,or 21 can survive but other trisomies…

A: There are 23 pairs of chromosomes in which 22 pairs are the autosome and 1 pair is sex chromosome.…

Q: How does nondisjunction lead to disorders in chromosome number?

A: When the nucleotides sequences in the genome of an organism are altered or changed due to mistakes…

Q: Is there homologous chromosome pairing in mitosis? and in meiosis? Explain.

A: Homologous chromosomes are paired chromosome, which have the same gene sequence, loci, centromere…

Q: What process occurs when genes swap position on a chromosome during meiosis, as in the case of Cru…

A: Meiosis is a cellular process where a single cell divides two times to produce four cells containing…

Q: why Monoploids as well as polyploids containing odd numbersof chromosome sets are usually sterile?

A: The changes in the chromosome are of two kinds that involve changes in the complete set of the…

Q: What would happen to the chromosome number in gametes and offspring if ​gametes were formed by the…

A: During sexual reproduction, gametes from parents fuse together and forms a fertilized cell called…

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: A diploid organism has a total of 14 chromosomes and about20,000 genes per haploid genome.…

A: Genetic linkage refers to the close association of genes chromosome that are located close to each…

Q: Consider three pairs of homologous chromosomes with centromere labeled A/a, B/B, C/c. How many kinds…

A: Meiosis is the process in which the germ cells for sexual mode of reproduction is formed. This…

Q: Since the goal of making haploid gametes is to create cells with only one full set of chromosomes…

A: The cell division in which parent cell divides into four daughter cells with half the chromosome…

Q: Why is meiosis necessary for sexual recombinations?

A: In the process of meiosis, a single cell divides twice to produce four haploid daughter cells…