Concerning the sexchromosomes of the XYsystem which type of gametedo the male and the femaleindividuals respectivelyproduce?

Q: How Do Meiosis and Union of Gametes Produce Genetically Variable Ofspring?

A: Introduction: In meiosis, a single cell undergoes the process of division twice and result in the…

Q: Explain why a triploid individual is usually infertile?

A: The individual having three sets of haploid chromosomes (3n) is termed as triploid. Triploid…

Q: By what mode of cell division would you expect sperm cells to be formed in the haploid male be?…

A: Introduction: The process of sperm cell formation is called spermatogenesis. To create spermatozoa,…

Q: What is the general role of the gene product of SRY in human sex determination? Also, on which…

A: The SRY gene is located on the Y chromosome and it is responsible for sex determination. It is…

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: Relate the characteristics of the Y chromosome

A: The Y chromosome is one of the two sex chromosomes (allosomes) in mammals and many other animals ,…

Q: What type of gamete is produced by an antheridial head? By an archegonial head?  Are these produced…

A: The anthredial head and archegonial head are present in the bryophytes. The bryophytes are also…

Q: Differentiate between somatic crossing over and meiosis crossing over.

A: In the crossing over process, parts of the chromosomes can be exchanged when two chromosomes, one…

Q: Name the chromosomes which donot take part in sex determination.

A: Chromosomes are rod-shaped condensed chromatin fibers that act as hereditary vehicles as they store…

Q: In the process of Oogenesis in animal cells, will the genotype of the second polar body (derived…

A: The process of ova formation also referred to as the formation of female gametes, is characterized…

Q: Describe inactivation between the two meioticdivisions inhibits DNA replication.

A: Meiosis is a special type of cell division that results in the formation of four daughter cells that…

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: Describe how reciprocal translocations align during meiosisand how they segregate?

A: Chromosomes carry the genetic material DNA. Chromosomes may undergo rearrangements that are the…

Q: How do meiosis, fertilization, diploid cells, and haploid cellsinteract in a sexual life cycle?

A: Reproduction is the process by which an organism creates more of its own progeny. Reproduction is…

Q: Why is it necessary for gametogenesis to reduce the chromosome number of the sex cells by one-half?

A: Ans: Gametogenesis: It is the biological process in which haploid or diploid cells divide as well as…

Q: Define Chiasmata and cohesins distal to them linkhomologous chromosomes in meiosis I metaphase.

A: Meiosis is a process where a single cell under cell division two times to produce four daughter…

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: Briefly describe TWO events during meiosis that contribute to genetic variation in the gametes.

A: Meiosis, the specialised cell division procedure that creates gametes (sperm and eggs), involves two…

Q: Only one gene is present in gamete and not both . explain it?

A: Gametes  Gametes are the male and female reproductive cell produce by male and female reproductive…

Q: What is unusual about the cytoplasm during cell divisions that result in spermatids?

A: Spermatid is the haploid male gametid which results from division of secondary spermatocytes.Each…

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: A secondary oocyte is arrested in what phase of meiosis?

A: The development of the oocyte starts at the time of fetal development; the primordial germ cells…

Q: Describe one function, brought about by the process of meisos, that spermatogenisis and oogenisis…

A: Common function between spermatogenesis, oogenesis and meiosis :-

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: Mitosis and meiosis are both important processes of cell division in the life cycle of a sexual…

A:

Q: What is crossing over? Howis meiosis related to thisphenomenon?

A: Meiosis : A type of cell division in which parent cell give rise to 4 haploid (n) daughter cells.…

Q: Do the genes of the X and Ychromosomes determine onlysex characteristics?

A: The human cell contains 23 pairs of chromosomes. The first twenty three pairs of chromosomes are the…

Q: What are two distinct chromosomes that provide the basis of sex determination?

A: In a biological system, the development of sexual characteristics in an organism is determined by…

Q: Outline the molecular mechanism of sex determination in Drosophila and mammals.

A: Sex determination refers to determining the sex of an individual. The sex of an organism is…

Q: How many polar bodies are given out in production of one egg during cogenesis?

A: In the human female reproductive system, the process of formation and maturation of the female…

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.