The stage of prenatal development in which there is rapid growth and all of the organ systems are fully functional is referred to as the a.)first trimester b.)second trimester c.)third trimester d.)zygote phase

Q: List the four primary tissue types of the adult body and identify which of the three primary germ…

A: A tissue is defined as a group of cells which are having a similar structure and are organized to…

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: In what sense can spontaneous abortion be considered a protective mechanism?

A: Abortion is also known as termination of pregnancy or miscarriage. Abortion is the ending of a…

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

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

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: What generates the first differences among cells in an early embryo? And what controls the…

A: Embryonic differentiation refers to the process in which embryonic cells possess specialization and…

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 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 is an ectopic pregnancy?

A: Ectopic pregnancies exist in around one out of every 50 conceptions, as per the statistics of the…

Q: What is yolk? What is its role in fertilization and development?

A: The development of organisms depends on the supply of resources. In embryo development nutrition of…

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: What is organogenesis, and why is this concept important to the process of development?

A: Question - What is organogenesis , and why is this concept important to the process of development ?…

Q: How are the development events, which you have observed to occur in the testis and ovary,…

A: The initial processes of gonads development are essentially similar in both sexes consisting of…

Q: What conditions can be detected using fetal ultrasonography, amniocentesis, and chorionic villi…

A: Answer -There are many ways now by which we can determine any fetal abnormality without invasive…

Q: Why do all forms of precocious puberty require evaluation?

A: Precocious puberty is when a child's body begins evolving into adult organisms. When puberty starts…

Q: List the three primary germ layers.

A: After the fertilization of the egg cell and the sperm cell, a zygote is formed which undergoes…

Q: Follicle cells left behind after ovulation A)are shed during menstruation. B)become the corpus…

A: Ovarian follicles are found in the ovaries. At puberty there are approximately 400,000 follicles,…

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 is the state of gonadotropin secretion during pregnancy,and what is the cause?

A: During the time of pregnancy, there are several hormones released by the placenta and ovary for the…

Q: What genetic factors control the process of development in humans?

A: Factors responsible for the development of human growth are:- Heredity :- Transferring of character…

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: "What is the advantage of internal fertilization over external fertilization and vice versa"?

A: The natural cycle by which new individual creatures – "offspring" – are delivered from their…

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 the purpose of calcium ion in fertilization?

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

Q: What is the purpose of the placenta? Which part of the blastocyst eventually becomes the fetal…

A: Introduction  An organ that grows in the uterus during pregnancy is the placenta. A developing…

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: Where does fertilization usually take place?

A: The reproductive system consists of two system namely male reproductive system and female…

Q: What are all the transcription factor proteins that positively regulates odontogenesis in the…

A: Odontogenesis It is a tooth development process. It is a complex process though which the formation…

Q: What is the difference between neonatal and prenatal?

A: The firsts eight weeks after fertilization are termed as embryonic stage in which formation of…

Q: Name and define the three basic stages of prenatal development?

A: Human reproduction is defined as the process by which sperm fuses with the ovum to generate the…

Q: Why is fetal Hb essential for the survival of placental animals?

A: Hemoglobin is an oxygen transport protein in mammals. It is made up of four sub-units. Adult…

Q: What is the advantage of internal fertilization over external fertilization and vice versa?

A: Question - What is the advantage of internal fertilization over external fertilization and vice…

Q: What do the inner and outer surfaces of the placenta consist of? a) amniotic tissue and corpus…

A: Placenta is a organ that connects the mother's uterus with baby's Umbilical cord.

Q: For successful reproduction to occur, various gonadotrophic hormones need to be involved. What…

A: Reproduction implies reproduction. Reproduction is the biological process by which an organism…

Q: What are the benefits of the Amniocentesis procedure?

A: In an amniocentesis procedure, a sample of amniotic fluid from the uterus is removed. With the use…

Q: What is Prenatal Testing ?

A: Prenatal care is a sort of preventative healthcare. It is provided in the form of medical checkups,…

Q: What are implants? How do they help in preventing fertilisation?

A: Fertilization is a process of fusion of gametes, male and female gametes. In other words, it is a…

Q: What kinds of advantages does CVS have over amniocentesis?

A: Prenatal testing is used to determine the fetal well-being. Prenatal testing helps in determining…

Q: How do the processes of capacitation and acrosome reaction affect the fertilization process? How do…

A: Introduction  Fertilization refers to the process when there is a fusion of male and female gametes…

Q: What tissues and organs arise from the three germ layers in embryonic development?

A: In developmental biology, various stages are involved for the development of a foetus. Gastrulation…

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: 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 are the principal structures each germ layer gives rise to in the adult?

A: The zygote is a cell formed by the union sex cell of the male (sperm) and sex cell of the female…

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…