II. This type of cell division occurs during the formation of both sperm and ovum. The first meiotic division of the primary spermatocyte results in two secondary spermatocytes. .What is the result of the first meiotic division of the primary oocyte? two secondary oocytes O two polar bodies O two ovum one secondary oocyte and one polar body
Q: 12. You observe a human gamete cell that has 24 chromosomes in it. What has happened? Explain.
A: The meiosis is the cell division process by which a diploid (2n) mother cell divides it's nucleus…
Q: 5) List the stages of fetal development and what happens at each stage.
A: Every month, a female body goes through a reproductive cycle. This cycle can terminate in one of two…
Q: 4. Some stages in the development of an individual are listed here. A = differentiation of cells…
A: When sperm fertilizes the ovum, then the formation of a zygote occurs. The zygote undergoes cleavage…
Q: 3. Complete the following table with the number of autosomes and the types of sex chromosomes found…
A: A sex chromosome is the chromosome that determines the sex of an organism. Autosomes are homologous…
Q: Consider the male and female reproductive systems. (a) Where does spermatogenesis occur in male?…
A: Reproduction is defined as the biological process of producing a new individual or an offspring…
Q: 1. Warm-up question. During the process of human sexual reproduction, the identical twins are the…
A: Identical twins are also called as monozygotic twins. They result from the fertilization of a single…
Q: 3. Identify the stage of meiosis for the following cells: а. b. с.
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: 5. Do other organs or organ systems develop at the same time? Are they related to the function of…
A: Question number 5 is incomplete, Hence cannot be answered. Answer 6: If the nucleus of a non-motile…
Q: differences between frog and chicken ovary. Cite the differences of spermatogenesis on frog and…
A: The ovary is a female reproductive organ in organisms. It is responsible for the formation of a…
Q: 35. The differentiation of the primitive gonads into testes or ovaries depends on the presence or…
A: The Y chromosome have SRY gene which is referred to as the sex determination region. This is present…
Q: 1. How the artificially produced estrogen and progesterone in contraceptive pills prevents pregnancy…
A: The reproductive cycle in female primates is called as mentural cycle. for eg. in apes, monkey and…
Q: During the G2 phase, the inhibition of protein synthesis prevents the cells from undergoing anaphase…
A: Mitosis
Q: 4. During fertilization, what process allows steps 1-4 to occur, as shown here? Tail- Outer layers…
A: Fertilization is the process by which the male and female gametes fuse to form the zygote, which…
Q: Discuss the importance of the acrosomal cap of the sperm cell. Give its importance during…
A: Introduction Life starts from single cell called Zygote. Zygote is the single diploid cell resulted…
Q: -3. The figure below shows cleavage stages in an embryo. From studying the photographs, what can you…
A: On fertilization, the zygote undergoes cleavage. That is the process of development of multicellular…
Q: Question 11 Which is TRUE for embryonic development of prc O Lacking three germ layers O…
A: A protostome could be a cluster of animals that has invertebrates like arthropods (insectsand…
Q: 2. During which trimester do the following events occur? a) heart starts beating b) the body is…
A: Trimester is a group of 12 weeks this term used in case of pregnancy . Due to question answering…
Q: 22. When glucose levels in the blood rise, your brain sends a signal to your pancreas. releases…
A: According to guidelines we have to answer the first question only. so please kindly post the…
Q: In a 24-year-old man, which of the following cell types are most likely to be in the process of…
A: Testis is the part of male reproductive system. It is found in the scrotum 2gich provides the 2°C…
Q: 15.The zone of the testicular follicle where the primary spermatocytes become secondary…
A: Spermatogenesis: Process of formation and maturation of sperms in testis. It includes 5 stages of…
Q: 8. The material that flows from the human female reproductive tract during menstruation is produced…
A: You will see clumps, blood, tissue during mensuration. Need to find the lining breakdown is from…
Q: 4. During menstruation, the stratum functionalis is shed from the endometrium. Explain the hormonal…
A: Menstruation is normal vaginal bleeding that occurs as part of a woman's monthly cycle. During this…
Q: Fill in the blank: The myometrium is largely composed of _______________________ tissue.
A: The female reproductive system is comprised of the external and internal sex organs, which play a…
Q: a.Metaphase II
A: If there is no fertilisation , oocyte will arrested at metaphase 2 of meosis 2 . Answer a is…
Q: 1. What is the new structure that formed just after fertilization? (We are not referring to new…
A: Later stage embryo shows mitotic division . Prior to this , meiosis occur in gametes .
Q: In the process of spermatogenesis, each cell undergoes meiosis II, resulting in the production of…
A: Spermatogenesis is the process of production of haploid spermatozoa from germ line cells. This…
Q: 3. The epithelial tissue which is found in the uterine tubes is? A. Squamous B. Ciliated C. Columnar…
A: Ciliated epithelial cells are the main cells in uterine tube lining which cause propogation of ova…
Q: 11, The following is correct regarding embryonic development
A: Digestion is the process in which complex substances are broken down into simple substances.
Q: Meiosis II of spermatogenesis yields a) Primary spermatocyces www C) Spermatogonia d) Spežmatids 田…
A: Spermatogenesis is the process of producing sperms from the male germinal cell. It is a meiosis…
Q: Outline the events for spermatogenesis. Why is spermatogenesis a significant process for sperm…
A: The male germinal cells which produce the sperms are known as the primary germinal cells or…
Q: 5. Describe/draw the journey that the sperm cells go through to exit the O male body. Include the…
A: The process of sperm ejaculation during the intercourse involves series of steps that the sperms…
Q: 12. The CFTR gene, on hu chloride ion concentrat cystic fibrosis. How ma In G1 of the cell cycle In…
A: Phase Number of gene/chromosomes G1 phase of cell cycle- 2 copy G2 phase of cell cycle…
Q: 9. Some biologists contend that the term double fertilization is a misnomer and that the process…
A: Fertlizatiion is the process of the male gamete, sperm, fusing with the female gamete, the ovum,…
Q: During cleavage, the mass of cells: a. increases b. decreases c. doubles with every cell division d.…
A: The development of a human embryo is called embryogenesis, which starts with the fertilization of an…
Q: 2. The figure shown is a microscopic image of the cells of grasshopper testis. Encircle the cell and…
A: The indirect process of cell division in which the chromosomes of parent cell divide once but…
Q: 3. Diploid somatic cells of elephants have 56 chromosomes. What would be the resulting number of…
A: Primary spermatocyte undergoes meiosis to produce spermatids. Meiosis occurs in two stages,…
Q: 1. Why are the accessory glands of the male so important in reproduction?and Why doesn't women…
A: Testis is the main reproductive organ (gland) in males. It produces sperm and testosterone. Not only…
Q: 1. Suppose a woman has retained placental fragments that is causing extensive bleeding. Which test…
A: Following normal delivery, placenta must be delivered within 1/2 hour, otherwise it may result in…
Q: tion of meiosis II in a secondary oocyte? O a) A surge of Follicle-Stimulating Hormone (FSH)…
A: During oogenesis, the egg completes its development i.e undergoes meiosis I and II. In meiosis 1, a…
Q: What are the functions of the interstitial cells and sertoli cells in sperm development?
A: Introduction The two basic requirements of the organisms two sustain life are Food and…
Q: 17. A researcher discovers a certain genetic disorder is appearing more often in males than in…
A: Genetics is the study of genes, their interactions, and the effect of environment on genes. Broadly…
Q: What are the different parts of a sperm and what is their importance in fertilization?
A: Gametogenesis is the production of sperm (sperms) in males and ova (ova) in females. Sperms are…
Q: 8. In the schematic of spermatogenesis below: name the processes A, B, C and D and m labeled cells.
A: Spermatogenesis is the development of sperm cells in male reproductive organs or particularly…
Q: Fill in the blank: The number of chromosomes normally present in a human sperm cell is…
A: Step 1 Sperm cells or spermatozoa are gametes that are produced in the testicular organ, the gonads…
Q: What specifically will happen if multiple sperm were able to fertilize one egg during fertilization?
A: Introduction A zygote is formed by the fusion of male gamete (Sperm) with the female gamete…
Q: 1)It regular of the male sex organ in the embryo 2)it control the development of endometrium during…
A: Hormones are the chemical molecules which acts as a chemical messenger for different body tissues…
Q: Why are spermatonta created by meiosis and not by mitosis? 2. Why is the formation of polar…
A: BASIC INFORMATION REPRODUCTIVE SYSTEM Genital system is the another name for this system. The…
Q: -5 X Hormones and Male Sex Organ Development SRY Gene SRY gene on Y chromosome
A: SRY is located on Y chromosomes in males.
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- A spermatogonial cell undergoes mitosis before entering the meiotic cell cycle en route to the production of sperm. However, during mitosis the cytoplasm fails to divide, and only one daughter cell is produced. A resultant sperm eventually fertilizes a normal ovum. What is the chromosomal complement of the embryo?Women sometimes develop benign tumors calledovarian teratomas or dermoid cysts in their ovaries.Such a tumor begins when a primary oocyte escapesfrom its prophase I arrest and finishes meiosis Iwithin the ovary. (Normally meiosis I does not finish until the primary oocyte is expelled from theovary upon ovulation.) The secondary oocyte thendevelops as if it were an embryo. Development isdisorganized, however, and results in a tumorcontaining differentiated diploid tissues, includingteeth, hair, bone, muscle, and nerve. If a dermoidcyst forms in a woman whose genotype is Aa, whatare the possible genotypes of the cyst, assuming norecombination?Describe one function, brought about by the process of meiosis thatspermatogenesis and oogenesis have in common. Please write the similarities between spermatogenesis and oogenesis in a paragraph ratherthan a table. Please discuss the process mentioning differentiation, multiplication anddivision. How many stages of meiosis do they go through. Please mention if haploid ordiploid cells are formed.
- What is the relationbetween fecundation and theend of the meiotic processduring oogenesis?How many chromosomesdoes a human normal haploidcell have? How many chromosomes does a human normal diploid cell have? How many are the sexchromosomes within each ofthem?Starting with One Cell describe and draw step by step the process of Meiosis I in males and females (theyhave different end results). How many viable cells are there for the male and for the female.at the end ofMeiosis I?
- Describe the events of meiosis I and meiosis II. How arethe cells produced by meiosis I different from the cellsproduced by meiosis II?In some animals, females can reproduce by themselves—that is,without males. In this process, called parthenogenesis, the youngdevelop from unfertilized eggs. Use the Internet to find a species thatuses parthenogenesis. How does parthenogenesis work in thatspecies? What are the differences between meiosis in that species andthe events of “typical” meiosis?What is the differencebetween spermatids andsperm cells? What is the nameof the transformation ofspermatids into sperm cells?
- Choose the best matching phrase in the right columnfor each of the terms in the left column.a. meiosis 1. X and Yb. gametes 2. chromosomes that do not differbetween the sexesc. karyotype 3. one of the two identical halvesof a replicated chromosomed. mitosis 4. microtubule organizing centersat the spindle polese. interphase 5. cells in the testes that undergomeiosisf. syncytium 6. division of the cytoplasmg. synapsis 7. haploid germ cells that uniteat fertilizationh. sex chromosomes 8. an animal cell containing morethan one nucleusi. cytokinesis 9. pairing of homologouschromosomesj. anaphase 10. one diploid cell gives rise to twodiploid cellsk. chromatid 11. the array of chromosomes in agiven celll. autosomes 12. the part of the cell cycle duringwhich the chromosomes are notvisiblem. centromere 13. one diploid cell gives rise to fourhaploid cellsn. centrosomes 14. cell produced by meiosis thatdoes not become a gameteo. polar body 15. the time during mitosis whensister chromatids…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?After telophase Il of meiosis, the chromosomal makeup of each daughter cell is: Practia diploid, and the chromosomes are each composed of a single chromatid. O diploid, and the chromosomes are each composed of two chromatids. O haploid, and the chromosomes are each composed of a single chromatid. O haploid, and the chromosomes are each composed of two chromatids.