What is the course of prenatal development, and how do teratogens affect thatdevelopment?

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 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: Define the Fetal Development third through ninth months ofdevelopment ?

A: Fetal development: - The development of human embryo after fertilization is the fetal development.…

Q: Describe the developmental events of the second and third trimester

A: Introduction: A normal pregnancy is divided into trimesters- first, second, and third.  The first…

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 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 are the three major periods of prenatal development?

A: The term prenatal refers to anything occurring, used, performed, or existing before the birth of a…

Q: What are some examples of genetic conditions and teratogens thatcause birth defects?

A: The term genetic refers to the genome present in the cells of an organism. Genome is the complete…

Q: When do hCG levels spike during pregnancy?

A: Human chorionic gonadotropin (HCG) is a hormone, which is secreted by the cells that are surround a…

Q: How do teratogens cause birth defects?

A: Teratogens are those substances or agents that cause harmful mutations or deformations in the genome…

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: Define Precocious puberty?

A: Human life is divided into various stages. The various stages includes child, teenager, adult, old…

Q: Where does fertilizationusually occur, and what hormonal changeshappen after fertilization?

A: Fusion of sperm with ovum is known as fertilisation Fertilisation generally occurs in fallopian tube…

Q: What are the major functions of Female Placenta?

A: The placenta is a large organ that develops during pregnancy. It is usually attached to the uterine…

Q: What are the endocrinefunctions of the placenta?

A: The placenta is a large organ that develops during pregnancy. It is usually attached to the uterine…

Q: What is the significance of cleavage during the early stages of development?

A: The cleavage is the division of cells in the early stage of an organism. This implies that with each…

Q: Describe the formation and function of the placenta?

A: When a women gets pregnant, the fetus develops inside the mother. There is a connecting link between…

Q: Which events make up the three stages of labor?

A: Events that make up the three stages of labor are : Active labor : when neck of cervix is dilated…

Q: What are the differencesbetween spermatogenesis and oogenesis?

A: The male and female reproductive organs, the testes, and ovary are called gonads. These contain…

Q: Describe the formation and functions of the placenta?

A: The human placenta is allanto-chorial (the chorial placental circulation is connected with the…

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: Explain Puberty in females?

A: Answer- Puberty is the age of any individual which marks as transition phase from being a child to…

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: Which structures are responsible for maintaining levels of estrogen in during pregnancy?

A: In spite of the fact that progesterone dominates all through pregnancy, estrogen is likewise vital.…

Q: What is the role of the HCG hormone in pregnancy?

A: HCG or Human Chorionic Gonadotropin hormone is one of the crucial hormones in pregnancy. Here we…

Q: What is oogenesis? Give a brief account of oogenesis.

A: The female reproductive organs comprise primary sex organs (ovaries) as well as accessory sex…

Q: What is puberty?

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

Q: . At what point during a pregnancy does this organ or system begin to develop, function, and become…

A: Note: Since you have asked multiple question, we will solve first question for you. If you want any…

Q: What are the three stages of labor?

A: Labor is the process of expulsion of the fetus to the outer world through the vagina. Pain during…

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: What are the most frequent aches and pains experienced during the first, second, and third…

A: A woman's womb is where one or more children develop (gestate) during pregnancy. Multiple…

Q: Which hormones are secreated by the placenta to maintain pregnancy?

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

Q: Endometrium function?

A: UTERUS It is a major female secondary sex organ of the reproductive system in humans and most other…

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: What is the time period of gestation in human beings?

A: The uterus of the woman plays a critical role in childbirth because the baby develops there.

Q: What are the functions of the INTERSTITIAL CELLS and SERTOLI CELLS in sperm development?

A: In males the testis is the primary sex organ in which two major types of cells are present that are…

Q: Why does puberty occur too late or too early in some individuals?

A: Puberty is a crucial stage in human development, marking the transition from childhood to adulthood.…

Q: What are the changes seen in girls at the time of puberty?

A: Puberty is defined as a process during which some changes occur in the body of a child to become an…

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 is the name of the structure that connects the placenta with foetus?

A: Introduction :- During pregnancy, the placenta is an organ that develops in the uterus. This…

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: 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…