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

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: . List the major steps in oogenesis.

A: The both male and the female sexual reproductive organs are important for the reproduction process.…

Q: Which structures develop from the neural tube and somites?

A: the structures that  develop from the neural tube and somites are :

Q: What changes occur in ovaries during menstrual cycle?

A: The ovaries are paired ova organs. They are present within the pelvic cavity lateral to the uterus.

Q: What is the main stimulus for the secretory phase of the endometrium?

A: Endometrium is the inner lining of uterus made of columnar epithelial cells. Its part of female…

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 uterine events are occurring when primary follicles are maturing during the follicular phase of…

A: The menstrual cycle is a progression of regular changes in chemical creation and the constructions…

Q: What are the mainsubstances transferred fromthe mother to the fetusthrough the placenta? Andfrom the…

A: The placenta is the connecting link between the fetus and the other. It is generally found in the…

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: Explain the Hormonal control of ovaries ?

A: Ovaries are the primary reproductive organs in females. They are responsible for the production of…

Q: Where are egg cells produced in a woman’s reproductive system? ____   Where does fertilization…

A: The biological system of an organism's reproductive system, also known as the genital system, is…

Q: How does ovulation take place?

A: In mammals, the egg is ovulated as a secondary oocyte that is at metaphase of the second meiotic…

Q: Why does menstruation occurs?

A: Ovulation is the release of an ovum from a mature follicle. It is required for fertilization.

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: 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 hormonal changes lead to menopause?

A: KEY WORDS :- Menopause - Around when women reach to 45 to 50 age group, there menstruation ceases…

Q: How do hormonal tests todetect pregnancy work?

A: Hormones are chemical messengers that play an important role in the growth and development of…

Q: When does gastrulation occur?

A: Gastrulation occurs during week 3 of Human development. The process of gastrulation generates the…

Q: What event marks thebeginning of the menstrualcycle? What is the bloodconcentration of FSH,…

A: EVENT MARKS THE BEGINNING OF THE MENSTRUAL CYCLE; 1.If the egg does not become fertilized during…

Q: What are primordial follicles?

A: The process of the formation of life or living organisms from pre-existing living organisms is…

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: What are the differencesbetween spermatogenesis and oogenesis?

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

Q: Name the three germ layers, and identify several types of structures thatarise from each.

A: Ans: Germ layers: The layers which are formed during the early stage of embryonic development are…

Q: Where does the formation of germ cells and sperm takes place?

A: Developmental biology is that the branch of biology that deals with the study the processes by that…

Q: What are the cells producedin the first stage of theembryonic developmentcalled?

A: The process in which the embryo forms and develops is known as embryonic development.

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: What are the functions of somites?

A: To define  functions of somites

Q: Which are the phases ofthe menstrual cycle?

A: The phenomenon of sloughing of the walls of the uterus in an orderly manner is called menstrual…

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 happens during the stage of dilation, the stage of expul- sion, and the placental stage of true…

A: Labor Series of events that take place in the genital organ in an effort to expel the viable…

Q: What happens in the menopause?

A: The menstrual cycle is a sequence of changes in the structures of the uterus and ovaries and hormone…

Q: What type of cells surround the oocyte in a unilaminar follicle?

A: oocyte present in a unilaminar follicles. oocytes is an cell present in the ovary which form ovum…

Q: What happens to the corpus luteum if fertilization does not take place?

A: Corpus luteum is a mass of cells formed in the ovary. It is responsible for the production of the…

Q: what is the purpose of calcium ion in fertilization?

A: * Fertilisation is an generative fertilisation fusion of gametes gives rise to a new individual…

Q: how is a childs wolrd broadend during the preoperational stage?

A: Piaget theory states the four different stages of the development of children and that depicts…

Q: How are the functions of FSH and LH in females andmales similar?

A: The endocrine system is a group of ductless glands that generate hormones and secrete them into the…

Q: What is the differencebetween spermatogonium andspermatocyte I?

A: In male reproductive system, a pair of testes are the primary reproductive organs. The chief aim of…

Q: Where oogenesis does takes place. Describe the stages of this process?

A: Diagrammatic representation of oogenesis: -

Q: Why does menstruation occur?

A: The production of eggs  in females begin during embryonic development and as a result many oogonia…

Q: Endometrium function?

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

Q: What is the relationshipbetween the menstrual cycleand ovulation?

A: The menstrual cycle is also known as the uterine cycle. In this cycle, the uterus endometrium layer…

Q: What is the product of fertilization?

A: Reproduction is a fundamental feature of life. Reproduction occurs in two forms, asexual and sexual…

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: Does the hypophysis-ovaries endocrine axis work inthe same way duringpregnancy as in…

A: MENSTRUAL CYCLE:- In this cycle, the preparation of the uterine wall occurs accompanied by…

Q: How does the sperm reach upto egg and how does it enter into the egg?

A: Fertilization is the process in which a sperm and egg are fused together in the uterine tube of the…

Q: How does oogenesis differ from spermatogenesis?

A: The cell is the basic and smallest unit of organisms. A group of cells functions together that form…

Q: Can you explain oogenesis and the folllicular developments?

A: Oogenesis is the formation of the ovum in the female members of the mammals. It starts before birth,…

Q: What triggers menstruation?

A: Menstruation is considered the healthy life cycle of women which is influenced by two hormones…

Q: Concerning events duringthe periods of life howdifferent is the gametogenesisin women and in men?

A: The production of gametes from germ cells is known as gametogenesis. The immature male germ cells…