An organism has a diploid number of 16 in a primary oocyte. (a) How many tetrads are present in the first meiotic prophase? (b) How many dyads are present in the second meiotic prophase? (c) How many monads migrate to each pole during the second meiotic anaphase?

Q: that a gamete underwent meiotic non-disjunction. Explain two possible outcomes for the zygote that…

A: In normal anaphase that occurs during the cell division, sister chromatids are pulled by…

Q: If the original parental cell had 12 pairs of homologous chromosomes, how many chromosomes would be…

A: Numerous physiological operations happen simultaneously in a biological cell. The sequential…

Q: What is the difference between Meiosis I and Meiosis II?

A: Meiosis is a process in which a single parent cell divides and produces four daughter cells…

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: Sister chromatids separate during A) metaphase of meiosis I. B) anaphase of meiosis II and anaphase…

A: The sister chromatids are the two halves of the of the replicated chromosomes. The cell division…

Q: In which meiotic division does the separation of the homologous occur? What are the ploidies of the…

A: Meiosis is a mode of cell division. In this one cell divides to form 4 cells.

Q: Human cells normally have 46 chromosomes. For each of the following stages, state the number of…

A: The organisms grow with the increase in the number of cells, with each cell containing genetic…

Q: For a certain chromosomal region, the mean number of crossovers at meiosis is calculated to be two…

A: In the meiotic cell division process, a single germ cell divides twice to produce four non-identical…

Q: e difference between prophase I of meiosis and prophase of mitosis? How are they similar?

A: Introduction: The first stage of cell division in both mitosis and meiosis is known as Prophase.…

Q: a)Draw a lily pollen grain in anaphase of meiosis II. b)How many gametes (sperm) will be in the…

A: 1) Lily pollen grain during anaphase II (n=12) 2) Pollen grain is male gametophyte of angiosperms,…

Q: Name all the phases of meiosis in the proper order?

A: Meiosis  It is a kind of cell division where four haploid cells are formed from single diploid cell.

Q: Several cells like the one represented below undergo a normal meiosis I and meiosis II, so that each…

A: Sister chromatids differentiate during meiosis II, while homologous chromosomes separate during…

Q: List the three principal mechanisms that generate new genetic combinations in meiosis.

A: The cell goes through cell cycle, which is a sequence of cell growth and duplication by the…

Q: Put the following in order in mitosis and the preceding interphase Hint: Determine whether the event…

A: In eukaryotes, Cells divide either via mitosis or meiosis. Somatic cells divide via mitosis.…

Q: You would expect to find a synaptonemal complex in a cell at (a) mitotic prophase (b) meiotic…

A: Cell division is a basic life process in Living organisms. It can be of two types: Mitosis and…

Q: 2). What is the diploid number (2n = ?) of an organism if it has a) 12 chromosomes at Anaphase of…

A: Refer to the solution

Q: 10) At what point during meiosis is the ploidy of the cell reduced by half? A) During Metaphase I B)…

A:

Q: Domesticated sheep cells have a total of 54 chromosomes (versus 46 chromosomes in human cells). (a)…

A: Chromosomes are the structures that carry DNA.

Q: a)What is the synaptonemal complex? b)Why are the X and Y chromosomes not considered homologous even…

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

Q: major events occur during meiosis

A: Meiosis is a type of cell division where four gametes or daughter cells are produced as a result…

Q: Describe the final cellular products produced when a primary oocyte undergoes meiosis (I and II) in…

A: The process of the formation of new organisms from existing organisms is called reproduction. There…

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: A diploid organism produces four gametes from one parent cell through the process of meiosis.  Two…

A: Meiosis is made up of two cell divisions occurring in succession in sexually producing organisms and…

Q: The tight connection between two sister chromatids that is present in the centromere region is not…

A: Mitosis and Meiosis are two types of cell divisions observed in eukaryotic cells. Mitosis is aimed…

Q: 4. a) Female swamp wallabies have 5 pairs of homologous chromosomes. Based on this alone, how many…

A: Cell division is the process by which a single cell divides and produce multiple daughter cells. By…

Q: How many new nuclei come from the original nucleus when meiosis is complete?

A: Mеiosis is a complеx procеss of cеll division vital for sеxual rеproduction in organisms. It is a…

Q: Overall, meiosis and mitosis are analogous processes involving many of the same proteins. However,…

A: Meiosis and mitosis are the two types of cell divisions.

Q: Which of the following does not occur in meiosis? (a) (b) (c) Homologous pairs form tetrads. Haploid…

A: In meiosis, one cell diploid undergoes division to form four haploid cells.

Q: ondisjunction during meiosis I b) nothing went wrong c) nondisjunction during meiosis II d)…

A: Meiosis is the the cell division that primarily occurs at the time of reproduction that is it helps…

Q: If chromosomal nondisjunction occurs during meiosis I, what proportion of zygotes formed from the…

A: The objective of this question is to determine the proportion of zygotes that would be aneuploid if…

Q: Assume that you were examining a first polar body and noted that it had one copy (dyad) of each…

A: Disjunction results in the separation of the two homologous chromosomes during cell division, for…

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.