If there are 400M ovum/egg cells in a 1point woman's body, how many primary oocytes are there during the initial stage of development? A. 100M B. 200M C. 30OM D. 400M 2. How many polar bodies will be formed after the fornmation of Ovum? A. 1 B. 2 C. 3 D. 4

Q: In females, meiosis is not completed (a) until birth. (b) until puberty. (c) until fertilization…

A: Gametogenesis is a process by which gametes are produced through meiotic division. Sperm and egg…

Q: The process of spermatogenesis produces __________ functional sperm and Oogenesis produces…

A: Answer: SEXUAL REPRODUCTION is the type of reproduction which requires male gamete and female gamete…

Q: The seven-day blastocyst: A. has a single layer of trophoblast at the embryonic pole B. has an…

A: The correct option is C.

Q: Regarding oogenesis, diplotene stage begins at a.birth b.Meiosis II c.7th month of fetal…

A: Diplotene is defined as the stage of meiosis II during which the homologous chromosomes remain…

Q: The umbilical arteries do the following: A. take deoxygenated blood and waste away from the…

A: Introduction :- Blood that has a low oxygen saturation compared to blood exiting the lungs is…

Q: Which syndrome can affect the gonad?  a. Turner Syndrome b. Klinefelter Syndrome c. Both d.…

A: INTRODUCTION Turner syndrome Turner syndrome is the syndrome that affect gonad. This syndrome is…

Q: he presence of human chorionic gonadotropin (HCG) A. Indicates pregnancy B. Indicates…

A: Pregnancy is the gestation period in which the development of the fetus occurs inside the uterus of…

Q: The change of successful fertilization is approximately 18% in every cycle. Why does this statistic…

A: c. Vagina is very acidic, killing many sperms. this statement seems to be false.

Q: Hormonal contraceptives (a) prevent ovulation (b) decrease estrogen concentration in the blood (c)…

A: Hormonal Contraceptives : These are birth control methods which act on the endocrine system. These…

Q: Internal fertilizationa. can prevent the drying out of gametes and zygotes.b. must take place on…

A: The process in which haploid gametes (egg and sperm) fused to form diploid zygote is called…

Q: During human gestation, rudiments of all organs develop (A) in the first trimester. (B) in the…

A: Gestation is the time required for the full development of a fetus. It is divided into pre-embryonic…

Q: 1. If there are around 200M point spermatozoa in the seminal fluid, estimate how many spermatocytes…

A: Spermatocytogenesis is the initial stage of spermatogenesis, which occurs in the male gonad of…

Q: A baby born four weeks before its due date is most likely to have anunderdevelopeda. central nervous…

A: The central nervous system begins developing two weeks after fertilization and continues developing…

Q: Gametes 5. Determine the probability of having: (a) Affected children: Possible fertilizations (b)…

A: Sex-linked traits:  In the humans the sex chromosomes are, in females XX and in males XY. The…

Q: The advantage of chorionic villi sampling over amniocentesis is that Chorionic villi sampling: a.…

A: CVS and amniocentesis are tests carried out during pregnancy most commonly to check your baby for…

Q: Why is the frog pattern of cleavage different from the sea urchin pattern of cleavage? Group of…

A: Option B

Q: 1. A placenta vera is formed if a.The placenta is removed during birth. b. The maternal blood bathes…

A: Placenta is the physical contact between the fetus and mother inside the mother's body. Placenta is…

Q: In general, the greatest vulnerability to teratogens occurs during: Group of answer choices the last…

A: Teratology It is the study of abnormal development in embryos and the causes of congenital…

Q: 3. a) Which of the following is not a teratogen: x-rays, folic acid, alcohol, mercury, HIV,…

A: These are questions about pregnancy and birth.

Q: For the first 8 weeks of gestation, a conceptus is nourished mainly by a. The placenta. b. Amniotic…

A: A conceptus receives nutrition is totally depends on the state. The foetus stage receives nutrition…

Q: e) None of the answers 31- Which stage of prenatal development goes from the second to the 8h week…

A: As per our company's guidelines we are supposed to answer three sub parts only. Please repost the…

Q: In humans, the development of fertilised egg takes place in the: (a) ovary (b) testis (c) oviduct…

A: Fertilization in humans refers to the fusion of human sperm and egg. This process occurs in the…

Q: 4. Sarcomas and hematopoietic cancers are both derived from which germ layer? A. Ectoderm B.…

A: "Cancer" is a fatal disease that has both physical and mental consequences for a person. Cancer can…

Q: Fertilization made artificially in the laboratory is called ___________.a) Invitro fertilization b)…

A: When an egg of a female unites with the sperm of the male, the formation of a fertilized cell…

Q: Which of the following type of placenta is found in humans? a) Discoidal b) Zonary c) Diffuse d)…

A: Introduction - During the pregnancy phase, the placenta is an organ that grows inside the uterus. A…

Q: 1. Embryonic development occurs during this period. A. from the ninth week of gestation to birth…

A: Here I discuss about embryonic development and gastrulation.

Q: How do you make a three-parent baby? OA. Replace intended Mom's nucleus with a donor's nucleus. B.…

A: The sperm cell swims up to the egg and fertilizes it, leading to the formation of a zygote. This…

Q: 12. During pregnancy the endometrium thickens and is called; A. Basal layer B. Compact layer C.…

A: Isoimmunisation is Rh incompatibility disease of the fetus. When a pregnant woman's blood protein is…

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: Which of the following does NOT happen in the germinal period? a. dividing mass of cells travels to…

A: During the nine months of a female's pregnancy, an infant goes through a lot of changes. An infant's…

Q: . A placenta vera is formed if  a.The placenta is removed during birth. b. The maternal blood bathes…

A: The placenta develops inside your uterus during pregnancy, providing oxygen and nutrition to and…

Q: 42, The following is correct regarding embryonic development a, the egg is only viable for 3-4 days…

A: 42. The following is correct regarding embryonic development b. the egg is only viable for 12 to 24…

Q: 1.This will stimulate the ovary to start the development of an egg cell and the secretion of…

A: Introduction Hormones are your body's chemical messengers, which coordinate different functions 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: An individual who is XY but is missing the SRY gene would be expected to develop into a. a male. b.…

A: SRY stands for the sex determining region of Y-chromosome. A normal individual have 46 chromosome in…

Q: What is the primary purpose of the fertilization membrane? a)Provide the growing embryo with food…

A: Sperm and egg (ova) are male and female gametes respectively. Fertilization is key process in sexual…

Q: Your cousin just had twins. She tells you that twinning occurs when two sperm fertilize the same…

A: Proliferation (or multiplication or rearing) is the natural cycle by which new individual life forms…

Q: construction worker most of his life, and has been frequently in in contact with asbestos. Wha is…

A: Note : Hi. Since you have asked many questions, we will solve first two questions, if you want us to…

Q: 1. How many spermatids are formed from 10 spermatogonium B?  a. 20 b. 40 c. 80 d. 160 2. Oogenic…

A: Spermatids These are haploid cells that are produced through the second division of a spermatocyte.…

Q: 4. The diagram below represents a cross section of a part of the human female reproductive system.…

A: Fertilization occurs in the fallopian tube, which connects an ovary to the uterus. An embryo begins…

Q: Embryos with cleavage pattern depicted in panel B exhibit mosaic development. B A) True B) False

A: Embryo  In developmental biology, the early stage of multicellular organism that is form by…

Q: The fetal period is (a) from weeks 9–38, (b) the time of rapid growth of body organs, (c) a time of…

A: Introduction  The usual gestation period in human females lasts for about 40 weeks which is…

Q: 1. Shortly after implantation, tissue from the embryo normally grows into the wall of D с. C B d. A…

A: The given figure is that of female human reproductive system .