Given the end results of the two types of cell division, why is it necessary for homologs to pair during meiosis and not desirable for them to pair during mitosis?

Q: Individuals with trisomy 21 are more likely to survive to adulthood than individuals with trisomy…

A: Trisomy is the presence of three copies a chromosome, rather than two.

Q: In a comparison of the stages of meiosis to the stages of mitosis, which stages are unique ... to…

A: Meiosis is a cell division in which diploid cells divide to produce haploid cells. Mitosis is an…

Q: Given that most chromosomes occur in homologous pairs, do most genes also occur in pairs?

A: Human beings have 23 pairs of chromosomes. Out of which 22 pairs are called autosomes and one pair…

Q: How many kinetochores would you expect to find in a cell that has 25 pairs of homologous chromsomes…

A: A kinetochore is a disc-shaped protein structure associated with duplicated chromatids (1 homologous…

Q: The photomicrograph below shows mitotically dividing cells from whitefish (Coregonus lavaretus). a.…

A: Introduction: Mitosis is an equational division, in which one parent cell divides into two identical…

Q: Why do you think that organisms do not use the first steps of meiosis (up to and including meiotic…

A: Cell division is the cycle by which a parent cell separates into at least two daughter cells. Cell…

Q: Why is the term “crossing-over” appropriate for the exchange of DNA segments between homologous…

A: Crossing over can be defined as the exchange of genetic material that occurs between the non-sister…

Q: Are sister chromatids attached at the centromere considered to be one or two chromosomes?

A: Two threads like strands which divide a chromosome longitudinally are called chromatids.

Q: A group of naturally occurring diploids of a species has 50 pairs of chromosomes. how many…

A: Mitosis  It is the division of chromosomes in a cell  Usually followed by cytokinesis or cell…

Q: Why do the cells produced by meiosis undergo two nuclear divisions but only have a haploid number of…

A: Meiosis is a cell division that occurs at the time of the formation of gametes. It is divided into…

Q: Why is meiosis important for the maintenance of the normal quantity of chromosomes of a species with…

A: Meiosis is the process by which male and female gametes (n), sperm and ovum are produced from their…

Q: The repeat expansion appears to occur during meiosis but not mitosis. Why mightthis be true?

A: Repeat expansions refer to the duplication of a single codon extensively. They are a type of dynamic…

Q: How many chromosomes would be found in somatic cells of an allotetraploid plant if its parent…

A: 10 Chromosomes.

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: Eukaryotic chromosomes have multipleorigins of __________?

A: Eukaryotic organisms comprise of the nucleus as well as other membrane-bound organelles and these…

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: What are sister chromatids? What is the process that forms two sister chromatids from a single…

A: DNA is the store house of genetic information. This genetic information is decoded through the…

Q: How can alteration in chromosome number or structure impact living organism? Explain how Down's…

A: Meiosis also called as reductional division is the type of cell division where the number of…

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: Why is the difference in cohesin cleavage in mitosis and meiosis important for proper segregation in…

A: Two types of cell division is seen in sexually reproducing organisms. They are mitosis and meiosis.…

Q: In an organism with 52 chromosomes, how many chromatids would be expected in each cell after the…

A: Cell division is the cycle by which a parent cell isolates into at least two daughter cells. 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: 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: How would Shugoshin does not break down after anaphase I of meiosis affect the outcome of mitosis or…

A: Shugoshin is a protein that guides the chromosome cohesion during the process of cell division.…

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: Within the sperm and egg cells of a frog, there are 13 chromosomes.  What would be the diploid #?

A: A frog gamete has 13 chromosomes.

Q: Does mitotic recombination occur in a gamete (sperm or egg cell) or in a somatic cell?

A: Cell division is typically a part of a broader cycle of cells. There are two distinct forms of cell…

Q: In terms of chromosome composition, are the two daughter cells in mitosis identical? Are they…

A: In terms of chromosome composition Mitosis creates two identical daughter cells and each contain the…

Q: If an organism has 15 pairs of homologous chromosomes, how many chromosomes will each daughter cell…

A: Mitosis: Some cells in the skin, embryo, gut divide constantly and there are few cells that divide…

Q: How mang sister chromatids are found in a single human cell undergoing Prophase II of Meiosis?

A: Meiosis is a reduction division. Number of chromosomes gets reduced by half in daughter cells.…

Q: The cells illustrations below represent different stages of meiosis. In which order would these…

A: Cells are the smallest functional and structural unit of all organisms. All cells have a cell…

Q: Are homologous chromosome pairs present in a diploid cell? Are they present in a haploid cell?

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: In a diploid cell with 5 pairs of chromosomes (2n 10), how many sister chromatids would be found in…

A: Ans – B) 20 Mitosis in Eukaryotes results in two identical daughter cells, whereas meiosis results…

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: If the image represents a meiotic cell, what will happen to the DNA represented in Box 1 after…

A: Answer: MEIOSIS : It is the cell cycle occurs mostly in the germ line cells, where parent cells…

Q: In keeping with the style of Table 17-1, what would youcall organisms that are MM N OO; MM NN OO;…

A: The basic structural and functional units is usually defined as the way that they are been stated…

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: Suppose that after fusion the resultant diploid cell underwent mitotic cell division instead of…

A: Cell division occurs when a parent cell splits, resulting in the formation of two or more daughter…

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: In many organisms, including humans, chromosomes occur in homologous pairs; where does each member…

A: In higher organisms, chromosomes occur in homologous pairs. One chromosome of the pair from each…

Q: Which cells in the human body undergo mitosis and do you think these cells are genetically identical…

A: Mitosis is that one type of cell division in which one parent cell divide to produce genetically…

Q: A dog has78 chromosomes . How many chromosomes will a cell have after it goes through mitosis? And…

A: All over the world we can see various types of organisms. All of them have originated from a single…

Q: a. What is the diploid number of chromosomes for a human? b. What is the haploid number of…

A: Introduction Cell division is the process by which a parent cell divides into two or more daughter…

Q: What will be the number of chromosomes in Turner’s syndrome and Klinefelter's syndrome of an…

A: Turner syndrome It is a chromosomal abnormality which affects only females. It is due to the absence…

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: In a Drosophila where somatic cells have 8 chromosomes, and gametes have 4 chromosomes, what is the…

A: Meiotic cell division is the process in which a single chromosomal replications cycle is followed by…

Q: Why do the daughter cells produced from meiosis I need to divide again in meiosis II?

A: Meiosis is a cell division which decrease the no. of chromosomes in the parent cell by half and…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: