Q: What is the ovum doing during the primary oocyte stage?
A:
Q: What are the major features of embryonic development at various months of pregnancy?
A: Within twenty hours after the fertilization, the zygote starts to divide rapidly into many cells.…
Q: Is the sperm or the egg responsible for the sex of the chicks?
A: Sex determination is process by which the sex of the foetus can be determined. The sex in organisms…
Q: What causes the contraction of the uterus ?
A: The uterus is a hollow muscular organ located between the bladder and the rectum in the female…
Q: What happens to placenta after the birth of the baby?
A: The process of physical expulsion of the fetus and placenta from the uterus is called labor or…
Q: What is external cephalic version?
A: External cephalic is a type of external rotation of fetus in utero.The physician rotates the fetus…
Q: How many days after ovulation does implantation occur, and inwhat stage is the conceptus at that…
A: Implantation is the stage when the embryo adheres to the uterine wall after fertilization. Ovulation…
Q: What is internal fertilisastion?
A: Fertilization is the process by which male and female gametes are fused together, initiating the…
Q: How is a zygote formed?
A: Sexual reproduction: It is a type of reproduction that involves the fusion of gametes. It required…
Q: Name the three primary germ layers and explain how they develop in the embryonic disc?
A: Once the implantation has successfully taken place, the cells start to divide and develop into an…
Q: What is the functional significance of the stratum basalis of the endometrium?
A: Endometrium: It is the inner lining part of the uterus which has two layers. Stratum basalis and…
Q: What is the entire process of oogenisis?
A: Oogenesis is the formation of a mature female gamete called ovum in the ovary. It is one of the…
Q: Which structures in males are homologous to the ovaries, the clitoris, the paraurethral glands, and…
A: The testes are homologous to the ovaries;
Q: How is a fetus usually positioned in the uterus as birth nears?
A: Answer: Introduction: The place of the baby in the uterus is known as the presentation of the fetus.…
Q: What is normal gestation period(in days) of the developing foetus?
A: The developing zygote is called an embryo from the conception to the eighth week of the pregnancy.…
Q: What are the ligaments that support the uterus?
A: Female reproductive tract is supported by three categories of ligaments and the are broad ligament:…
Q: What is the zygote stage?
A: The process of embryogenesis and fetal development initiate after the event of fertilization. It is…
Q: Where is zygote formed?
A: Zygote is a diploid cell formed by fusion of male and female gametes. It then undergoes mitotic…
Q: What is the vernix caseosa of the fetus? What purpose does it serve?
A: The unborn offspring developing from the zygote in an animal or human is called a fetus. The fetal…
Q: When does gastrulation occur?
A: Gastrulation occurs during week 3 of Human development. The process of gastrulation generates the…
Q: To which structures do the mesovarium, ovarian ligament, and suspensory ligament anchor the ovary?
A: The female gonad that lies in pair along either side of the uterus in the female body's pelvic…
Q: What is the first appearance of embryogenic callus?
A: The callus is basically an unorganized growing mass of parenchyma cells that is responsible for…
Q: what is the innermost menix?
A: The controlling and communication center of the human body is known as the brain. The brain…
Q: What are the functions of somites?
A: To define functions of somites
Q: When is the sex of a fetus visible externally?
A: The standard gestation period of people is 38 weeks from the fertilization of the ovum. During the…
Q: What are somites?
A: Somites A somite is a division of the body of an animals or embryo. Somites are bilaterally paired…
Q: What is the position of the ovary in these figures?
A: Depending on the positions of ovary in flowers, they can be categorized in 3 different ways,…
Q: What is a clitoris
A: It is the most sensitive region in the female reproductive system. It is a bulb shaped sexual…
Q: What is the advantage of cephalization?
A: Cephalization is an evolutionary process of concentrating the nervous tissues, sense organs and…
Q: Which embryologic tissue develops into the spinal cord (mesoderm/ectoderm/endoderm)?
A: The formation of the embryo is one of the defining features of sexual reproduction. This embryo…
Q: How is the child affected if it has grown from the zygote formed by an XX-egg fertilized by…
A: Zygote is also known as a fertilized egg because it is formed by the process of fertilization in…
Q: When is amniocentesis performed?
A: Fertilization is key process in sexual reproduction. When male and female gamete unites successfully…
Q: What is the function of labium?
A: The ancestors of present-day insects were probably worm-like arthropods with a simple mouth starting…
Q: What is the acrosome?
A: A spermatozoon is motile sperm cells or moving from of the haploid cells that is the male gamete. A…
Q: What is the lining of the uterus that sheds called?
A: Uterus is the part of female reproductive system and is a muscular organ for the implantation of the…
Q: Why is microscopic examination important to cestodes?
A: Cestodes - It is a parasitic flatworm of the class Cestoda and platyhelminthes phylum. Some of the…
Q: Endometrium function?
A: UTERUS It is a major female secondary sex organ of the reproductive system in humans and most other…
Q: How long does it take for the embryo to implant into the uterine wall ?
A: The sperm of male fertilized the ovum of the female results in formation of the zygote. Sperm is…
Q: What is inguinal canal?
A: Abdomen commonly referred to as the stomach It is the area of the body between both the thorax…
Q: When does implantation of the blastocyst usually take place?
A: During fertilization, a sperm comes in contact with the zona pellucida layer of the ovum and induces…
Q: Why are male testes located outside the abdominal cavity?
A: Testis are the primary male gonads in human. The sperm production is carried out in testes. There…
Q: Prior to fertilization, where is the male gamete located?
A: Flowers are also known as blossom. Their primary function is reproduction in plants. They also a…
Q: What other developmental hallmarks are often associated with spiral or radial cleavage?
A: Based on the directions and angles the cleavage furrow cuts, cleavage is of four types, namely,…
Q: What is the developmental fate of the inner cell mass of the blastocyst?
A: A diploid zygote is formed by the union of a haploid egg cell and a haploid sperm cell. The zygote…
Q: How strobili are differentiate between male and female?
A: A strobilus is a reproductive structure characterized by overlapping scale-like parts, as a pine…
Q: What is Fertilization?
A: The expansion in size and changes in shape of a creating life form rely upon the increment in the…
Q: Where does fertilization usually occur?
A: Sexual reproduction is a type of reproduction, which involves a complex life cycle in which a…
What is the first appearance of embryonic callus?
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