A human male named Phillip has an X chromosome that ismissing its Xic. Is this caused by a new mutation (one that occurredduring gametogenesis), or could this mutation have occurred in anearlier generation and be found in the somatic cells of one of hisparents? Explain your answer. How would this mutation affect hisability to produce viable offspring?

Q: Explain how the human X and Y chromosomes can pair during meiosis eventhough they are of different…

A: Genetics is the branch of science that deals with the study of gene and their inheritance from one…

Q: What cohesins facilitate the attachment of sister kineto-chores to microtubules emanating from the…

A: The segregation of homologous chromosomes lies in them being pulled apart by microtubules. On one…

Q: How many daughter cells are obtained in each of these processes? (Mitosis and meiosis) Why?

A: Cell division is a process in which parent cell are divided into two or more daughter cells. there…

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: During oogenesis, nondisjunction of X chromosome occurred in meiosis I. If the resulting egg unites…

A: Non disjunction is the failure of chromosomes / chromatids to separate during Anaphase. In Meiosis…

Q: Jor genetic variation. 1. Differentiate the processes of mitosis and meiosis. 2. Describe the role…

A: Mitosis and meiosis are the two types of cell divisions.

Q: The pairing up of duplicated homologous chromosomes during prophase I of meiosis is called ____ and…

A: ANSWER) The pairing up of duplicated homologous chromosomes during prophase I of meiosis is called…

Q: but, luckily, scientists develop a way for women to produce babies by virgin birth. Meiocytes are…

A: The process of conversion of meiocytes directly into zygote, without undergoing meiosis, is known as…

Q: How many chromosomes would an oocyte contain if during anaphase II, the chromatids of one chromosome…

A: Abnormalities in the number of chromosomes are easily identifiable from the, karyogram.  This…

Q: Would a pair of haploid offspring produced by parthenogenesis begenetically identical? Explain.

A: Parthenogenesis is a type of asexual reproduction, which involves production of offspring from…

Q: A male baby is born with the sex-chromosomeconstitution XYY. Both parents have normal sex…

A: The failure of separation of sister chromatids during cell division is termed nondisjunction. In the…

Q: A mouse sperm cells has the genotype a b c d e it fertilizes an egg with the genotype a b c d e a.…

A: The combination of genetic material from a sperm and an egg during fertilization is an important…

Q: What distal to them are responsible for holding the homologous chromosomes together during pro-phase…

A: Chiasmata is a point that links the two chromatids of homologous chromosomes together. At this…

Q: Is it possible that an Xchromosome of a woman canhave come from her father?

A: Sex determination is a function of sex chromosome  in organisms. There are different ypes of sex…

Q: The sperm of Panthera leo contains 19 chromosomes, which of the following is/are true about somatic…

A: The sperms are gametes produced by male individuals. They are haploid cells (n) that contain a…

Q: What is the relationbetween fecundation and theend of the meiotic processduring oogenesis?

A: Gametogenesis is the process of production of gametes i.e. sperm and egg through meiosis. During…

Q: chromosomes in the sperm cell. Assuming that his primordial sex cell has to undergo spermatogenesis,…

A: Mitosis and meiosis are the types of cell division. Mitosis occurs in the normal cells and is…

Q: normal somatic cells of an organism have 100 chromosomes. how many chromosomes will be present in…

A: Chromosomes are long thread like structures that carry coded genetic in the form of genes. This…

Q: The human male never pass on the gene for haemophilia to hiis son. Why is it so?

A: The genetic disorders are often inherited from parents to the offspring. The genetic disorders often…

Q: How does the attachment of kinetochore microtubules to thekinetochore differ in metaphase of meiosis…

A: Mitosis is a process of cell division in which a parent cell splits into two daughter cells and each…

Q: What are mitosis and meiosis? These two processes are how parent cells produce daughter cells.…

A: Cell division is the process by which cell divides to produce daughter cells. There are two types of…

Q: Why does it make sense that the number of chromosomes in a gamete ishalf the number in a somatic…

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Q: List several ways in which telophase appears to be the reverse ofprophase and prometaphase.

A: In eukaryotes, there are two types of cell division, namely mitosis and meiosis. Mitosis occurs in…

Q: In which meiotic division does independent assortment of unlinked genes occur? What does…

A: Cell division is a process by which a cell divides and it is necessary for the growth and…

Q: Why is X chromosome inactivation important in female cells? (300 word limit)

A:

Q: If human somatic cells have 46 chromosomes, how many chromosomes do human gametes have?

A: The size of chromosomes vary from species to species and genera to genera. Usually, within a…

Q: during hwat stage of meiosis do Centrosomes migrate to opposite poles

A: Meiosis is a type of cell division in which a parent cell divides into four genetically different…

Q: Meiosis, oh meiosis, let me tell you what it means. It's a special kind of cell division with some…

A: Meiosis is a type of cell division that occurs in sexually reproducing organisms, which involves the…

Q: How does the Down Syndrome affects the cell’s ability to reproduce? Explain the difference between a…

A: Down syndrome is a genetic disorder caused by an extra chromosome 21 due to a genomic mistake during…

Q: You are an allele on a single uncondensed chromosome in a Yellow fever-carrying mosquito (Aedes…

A: The somatic cells follow the mitotic process for division and the reproductive cells or gametes are…

Q: half the chromosomes of a human primary oocyte segregate into the first polar body, which…

A: The process of formation of gametes is different in males and females. In males, it is known as…

Q: Why does a single X chromosome cause infertility and other abnormalities in Turner Syndrome…

A: Turner syndrome (TS) is a genetic disorder that mostly affects females. The clinical features of…

Q: What is the corect order of these meiotic events? A Segregation of homologous chromosomes to…

A: The indirect process of cell division in which the chromosome of parent cell divide once, but…

Q: Offsprings produced by asexual reproduction are referred to as clones. Why?

A: Reproduction is the biological process by which new individual organisms called offspring are…

Q: A disomic product of meiosis is obtained. What is itslikely origin? What other genotypes would you…

A: Meiosis is the process by which organisms divide and form different gametes. The formation of…