How does a morula differ from a blastocyst?

Q: After fertilization the blastocyst develops three germ layers. Which germ layer is the innermost…

A: In the human embryo , after about three days of fertilisation,the zygote forms a solid mass of cells…

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 is internal fertilisastion?

A: Fertilization is the process by which male and female gametes are fused together, initiating the…

Q: What happens if the fallopian tubes are partially blocked and the ovulated eggs are prevented from…

A: The fallopian tubes are two thin tubes located on each side of the uterus. It is the site of…

Q: What is the histological difference between a morula and a blastocyst?

A: Introduction  Life starts from single cell called Zygote. Zygote is the single diploid cell resulted…

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: What is the differencebetween amnion and chorion?

A: Both amnion and chorion are present during a woman’s pregnancy and are part of the extra embryonic…

Q: What impact does the growth of the uterus during pregnancy have on other organs of the abdomen?

A: During pregnancy, the uterus grows slowly as the fetus grows and develops. The upper part of the…

Q: Outline the postfertilization events that lead to formation of a blastocyst.

A: Reproduction is the phenomenon of producing offspring from the parent. The reproduction can be…

Q: What causes the newborn to take its first breath immediately after birth?

A: The amount of CO2 accumulated in the baby body caused acidosis

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 ovum?

A: The fusion of the sperm and the egg is what brings about the formation of the zygote, which will…

Q: How is labor induced if a woman’s pregnancy extends past her due date?

A: Labor is a term used for the pain experienced by a woman before parturition. Hormonal actions result…

Q: How do the amount and distribution of yolk influence gastrulation?

A: Gastrulation is a process in which the single layer of cells called blastula is arranged into a…

Q: What cells of the blastocyst invade the endometrium?

A: Blastocyst is a 70-100 cell structure that gets implanted in the uterus. It is composed of two types…

Q: What is the major function of the Placenta?

A: The placenta is an organ that develops in uterus during pregnancy. The placenta is the interface…

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: How many days after ovulation does implantation occur?

A: The menstrual cycle is a reproductive cycle that occurs in females. During this cycle, ovarian…

Q: What is the function of the placenta?

A: Placenta is formed after implantation of the embryo has occurred on the uterine wall. It is a…

Q: How is the oocyte moved through the uterine tube?

A: The female reproductive system performed diverse functions. It produces ovum also known as an egg.…

Q: What are the properties of the multiple ovulution embryo sac?

A: MOET  approach involves the production of multiple ovulation embryo sac which contains flush of…

Q: Where does fertilization normally occur?

A: Reproduction ensures the continuity of species on earth. It can occur in two ways that is sexual…

Q: What is the first stage of labor in a pregnancy?

A: The first stage of labor and birth occurs when the regular contractions are felt. During the first…

Q: Identify two differences between a zygote and blastocyst

A: The fusion of male and female gametes is termed as fertilization. The process of fertilization takes…

Q: What is puberty?

A: The postnatal period begins immediately after the birth and continues until maturity, the state,…

Q: What are the three germ layers formed during gas-trulation, and what are the principal structures…

A: Introduction :- Gastrulation is a process in which an embryo converts from a one-dimensional layer…

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 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: How does breast development differ between adult men and women?

A: Introduction Humans belongs to class Mammalia. Means they have mammary glands to feed their young…

Q: How does the femalegamete move from the ovaryto the uterus?

A: In the sexual mode of reproduction, gametes are the male and female reproductive cells that will…

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 are the factors affecting the timing of PUBERTY?

A: Puberty is a state that occurs during the start of adolescence period around the age 12 to 15. It is…

Q: At what stage is the oocyte at the time of ovulation?

A: In the female reproductive life, the menstrual or ovarian cycle occurs approximately once in every…

Q: Name the layer of cells that forms the outer wall of blastocyst.

A: Blastocyst is a developmental stage of the the embryo to form an foetus. This developmental form is…

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: What is external fertilisation?

A: Fertilization is the process by which male and female gametes are fused together, initiating the…

Q: Which germ layer of a blastocyst gives rise to muscle and connective tissues?

A: The mesoderm give rise to muscle ,connective tissue , lymphatic system bones,circulatory system,etc.

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: What determines if a baby is a boy or a girl and how does the child reproductively mature?

A: The phenotype (trait) of an organism is determined by the genotype (alleles) of an organism. At the…

Q: How is the Placenta as an Important Lifeline between Mother and Baby?

A: During pregnancy, an organ termed the placenta forms in the uterus. Several variables can impact the…

Q: Where does fertilization usually occur?

A: Sexual reproduction is a type of reproduction, which involves a complex life cycle in which a…

Q: Why would the absence of a father affect the timing of puberty?

A: Puberty is defined as the stage when a child starts to grow sexually. During this stage, physical…