An individual can have an abnormal number of chromosomes as a result of nondisjunction. Identify the following example of nondisjunction that results in an abnormal number of chromosomes. A. Sister chromatids do not separate in meiosis II.   B. Homologous chromosomes move apart appropriately during meiosis I.   C. Mitosis occurs normally during embryonic development.   D. Two normal gametes fuse during fertilization.

Q: Bob has XXY chromosomes (Klinefelter syndrome) and is color blind. His mother and father have normal…

A: Colorblindness is an X-linked recessive disorder. Klinefelter syndrome is the presence of two copies…

Q: An organism has a diploid number of 20 in a primary oocyte. a. How many tetrads are present in the…

A: Oogenesis is a kind of gametogenesis. It produces four haploid gametes (egg) from single parent…

Q: In a rare event, the human ovaries may release two ovum during ovulation and each ovum may…

A: Introduction  Usually there is only one embryo develops at a time in a single pregnancy but in some…

Q: In human spermatogenesis, mitosis of a stem cell gives rise to one cell that remains a stem cell and…

A: Human reproduction involves the formation of sexual gametes (egg and sperm) and fusion of…

Q: A diploid male organism has two homologous chromosomes. A and B are from its maternal parent, while…

A: Introduction Mitosis and meiosis are cell division proces. Mitosis results in cloned cells while…

Q: Given a diploid number of 2N=8 and two crossing-over events, trace the fate of these chromosomes…

A: Meiosis is the process of cell division used by germ cells to produce haploid cells so they can…

Q: is replicated twice in meiosis, but only once in mitosis.   B. The number of DNA molecules per…

A: Mitosis and Meiosis are two types of Cell division. Mitosis is the process in which cell divides to…

Q: What is it called when chromosomes fail to separate properly during meiosis? A. Nondisjunction B.…

A: The cell division is the process in which the cell divides into two or four daughter cells. There…

Q: a. In how many cells has meiosis occurred to yield these data? b. Give the best genetic map to…

A: A genus of Ascomycete fungi is called Neurospora. Neurospora species are molds with widely dispersed…

Q: 18. ХXY a. Which of the following terms describes the process of homologous chromosomes failing to…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Explain why the daughter cells produced by meiosis NEED to be genetically different from each other,…

A: All the events occur during cell division through which a cell divides into two daughter cells is…

Q: In a particular dihybrid (T/t, B/b) the alleles of the "T and "B"genes indicated in the figure below…

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

Q: What two processes are responsible for generating genetic diversity in gametes? Select one or…

A: Genetic diversity is responsible for increasing the chances of survival of a species. It helps in…

Q: Which of the following statements are True? There may be more than one answer. Select one or more:…

A: Option a is False  Explanation: Mitosis is a type of cell division which occurs in somatic cells for…

Q: Your father received 23 chromosomes from his mother and 23 chromosomes from his father. How many of…

A: As per the guidelines we are entitled to do one question at a time. So, I am providing a solution…

Q: At the end of meiosis in humans, four gametes are produced that are:   A. Genetically identical to…

A: Meiosis is a two-step cell division process that helps to produce sex cells or gametes. This is a…

Q: Non disjunction occurs when chromosomes fail to separate during meiosis, resulting in an abnormal…

A: Mitosis and meiosis are the two types of cell division that occur during M phase of cell cycle. M…

Q: In what phase of meiosis/mitosis would you find doubled chromosomes moving to opposite sides of a…

A: The process by which the parent cells divide and produce the daughter cells is known as cell…

Q: During oogenesis in an animal species with a haploid number of 6, one dyad undergoes nondisjunction…

A: Introduction oogenesis is the production or development of an ovum .Oogenesis is that the method of…

Q: How would each of the following events affect the outcome of mitosis or meiosis? a. Mitotic cohesin…

A: Since as per the honor code, we only answer three sub-parts at a time. Therefore, we are answering…

Q: When two genes are genetically “linked”, gametes produced during meiosis will usually contain allele…

A: Genetic linkage is a study which shows us the  genes or alleles which are close to each other on a…

Q: Name the phenomena that occur when homologous chromosomes do not separate during meiosis.

A: Meiosis is the type of cell division that occurs exclusively in gametes and results in the…

Q: A spider mite has 5 pairs of chromosomes, please draw what the indicated stage would look like and…

A: a. A spider mite consists of 5 pair of chromosomes. Replication of DNA occurs in the S-phase of cell…

Q: Nondisjunction results in uneven distribution of chromosomes during meiosis. Which of the following…

A: Non-disjunction occurs when the chromosomes do not separate properly, leaving gametes with one…

Q: Which case of nondisjunction is MOST likely to result in the production of an aneuploid cell? A.…

A: Nondisjunction is the improper segregation of chromosomes as a result of the failure of the…

Q: Draw a haploid mitosis of the genotype a+ ; b.

A: Mitosis and meiosis are two kinds of cell division in which chromosomes are segregated into daughter…

Q: Consider a diploid cell from an unknown organism that undergoes meiosis. The four gametes produced…

A: Inactivation of topoisomerase II, separase, or condensin causes 'nondisjunction". Separase breaks…

Q: Which of the following is the primary difference between mitosis and meiosis?   A. Meiosis occurs…

A: INTRODUCTION Mitosis Here cell divides into two daughter cells which are genetically identical to…

Q: Down syndrome a. What is the genetic abnormality that occurs? b. What are some symptoms? C. Using…

A: Down syndrome is an autosomal trisomy where an affected individual may survive until adulthood.…

Q: What phase of meiosis is this cell undergoing?

A: There are two types of cell division: meiosis and mitosis. Meiosis is the reductional division, and…

Q: There are 56 chromosomes in a mature elephant cell. If one of the elephants cells responsible for…

A: Mitosis: In all eukaryotes Equational division (Diploid (2n) => Diploid (2n)) Meiosis: In…

Q: Explain how the consequences of a disruption in the process of mitosis differ from the consequences…

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

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: EXAMPLE Ah nas a rare X-linked dominant condition called amelogenesis Imperfecta, whicn results in…

A: Amelogenesis imperfecta is due to the malfunction of the proteins in the enamel as a result of…

Q: As two students, who will be designated Student J and Student K, were studying together, they argued…

A: New cells arise from previous cells. Parent cells undergo cell division to produce new cells. There…

Q: autotetraploid and an allotetraploid

A: Autotetraploid:- Autotetraploidy are the individual, organism or a hybrid cells bearing / having…

Q: Which statement best describes the diagrams shown? O Diagram A represents meiosis resulting with…

A: Diagram A represents mitosis resulting with genetically identical daughter cells. Diagram B…

Q: For which of the following is the number the same in humanmales and females?(A) interruptions in…

A: Meiosis is a type of cell division in which the parent cell divides twice into four daughter cells…

Q: Explain the process of the following: a. The normal segregation of chromosomes during Meiosis 1 and…

A: Normal segregation will result in the formation of gametes with normal genotypes. Abnormal…

Q: which of these could lead to the mistake evident in the karyotype? A) a failure of cytokinesis after…

A: The Correct answer is A, B, and D.A karyotype is a pictorial representation of the chromosomal…

Q: a. If cell division during gametogenesis is non-meiotic, what is its consequence to the future…

A: A diploid somatic cell undergoes mitosis. a mitotic division results in two daughter cells which are…

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

A:

Q: A) At the end of meiosis I, how many chromosomes are in each cell? B) Are the cells haploid or…

A: Cell division is a biological process that results in the production of two or more daughter cells…

Q: Name two key functions of meiosis.

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

Q: Which of the following terms describes the process of homologous chromosomes failing to separate…

A: A pair of maternal and parental chromosomes seen in a diploid organism is known as a homologous…

Q: Down's syndrome, trisomy 21, is due to what likely problem during meiosis? Select one: a. Failure of…

A: The correct answer to this particular question will be, c. Overactive APC adding to many Ub to…

Q: Which statement does not accurately describe what occurs during the process of meiosis?   A) All…

A: Answer : Option 'C'  is correct . Meiosis produces  four identical gametes, either egg or sperm

Q: Refer to the drawings in the figure below of a single pair of homologous chromosomes as they might…

A: Answer of the question given below..

Q: During meiosis both recombinant and parental type chromatids are created. Which of the outcomes…

A: The meiotic division is characterized by the formation of recombinants. This phenomenon is achieved…

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: