What are the functions of somites?

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 myometrium?

A: The uterus is an inverted pear-shaped muscular pouch which is a part of female reproductive system.…

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

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

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 the difference between internal & external fertilization?

A: The process in which a male gamete commonly known as sperm that is released by the male reproductive…

Q: How is the yolk sac formed?What is the function of theyolk sac?

A: Yolk sac is the membranous sac attached to the embryo. It is also known as umbilical vesicle.

Q: What happens to the cell cycle of the secondary oocyte?

A: Oocyte is a female germ cell or gametocyte that participates in the reproduction. It is basically an…

Q: What is the zygote stage?

A: The process of embryogenesis and fetal development initiate after the event of fertilization. It is…

Q: What aids in the differentiation or the maturation of the oogonium into a mature ovum?

A: Oogenesis is the process of formation of ovum. It occurs in ovary of female.

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 is bipotential gonads ?

A: Answer- Gonads are sexual organs that form gametes and are crutial in sexual reproduction process.

Q: How does a morula differ from a blastocyst?

A: Morula Vs Blastocyst:         Morula stay distinct from a blastocyst, in which a morula (3-4 days…

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: Which gene is responsible for the development of the gonads into testes?

A: Introduction Chromosomes are classified into two types: Autosomes and Allosomes/Sex chromosomes. The…

Q: What are the stages of oogenesis? Describe all the ways in which it differs from spermatogenesis ?

A: Introduction: The process of formation of the egg cells in the ovaries of the fetus is known as…

Q: What are germ line cells?

A: A cell is the basic smallest structural and functional unit of life. Living organisms made up of one…

Q: How does senescence occur?

A: In biology, senescence could be a method by that a cell ages and Completely stops dividing however…

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 happens in the process of spermiogenesis?

A: Spermatogenesis is the formation of a haploid and functional male gametes (i.e — spermatozoa) from…

Q: What are the structural changes that occur in the uterus over the course of the menstrual cycle and…

A: The menstrual cycle is a sequence of natural modifications in hormone manufacturing and the systems…

Q: What occurs during cleavage?

A: Fertilization is the fusion of  ovum and sperm so as to form a diploid zygote. Zygote is the first…

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 are the steps in spermiogenesis?

A: The genital system comprises many organs that engage in sexual reproduction.

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: What is the advantage of cephalization?

A: Cephalization is an evolutionary process of concentrating the nervous tissues, sense organs and…

Q: What is the difference in appearance between a primordial and a primary follicle?

A: Reproductive system (or genital system) is used for the sexual reproduction. The female attains…

Q: What happens during the secretory phase of the endometrium?

A: The uterine cycle represents the cyclic changes that occur inside the uterus of a female.

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: What are the similarities and differnces between spermatogenesis and oogenesis?

A: Spermatogenesis and oogenesis are two different processes of the production of gametes. It is…

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 name of the stem cells that form mature sperm?

A: The development of haploid spermatozoa from germ cells in the seminiferous tubules present in the…

Q: What are germ cells?

A: In humans, mainly 2 types of cells are present; germ cells and somatic cells.

Q: List two important functions of gonads.

A: The reproductive system of an organism is also known as the genital system. It is the biological…

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: How are the events that take place in spermatogenesis and oogenesis similar? How are they different?

A: Spermatogenesis and oogenesis are the cycles of arrangement of male and female gametes.…

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: What are the   steps of fertilization

A: Fertilization is a process in which there is a fusion or union of the male gamete (sperm) and female…

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: 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 main stimulus for the proliferative phase of the endometrium?

A: The changes during a menstrual cycle can be divided into three phases: i.) Proliferative phase ii.)…

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 is oogenesis?

A: An female’s internal reproductive organs are uterus, vagina, fallopian tubes, cervix, and ovary. The…