What are the stages of egg cell development in humans?

Q: Name the process of development of egg into young one without fertilization?

A: The above-mentioned definition is true for parthenogenesis. It is a type of asexual reproduction…

Q: Which process involves the shaping of the embryo and cell migration?

A: Developmental biology is the branch of science that includes the studies of a diversity of…

Q: How many days does it normally take from the fertilisation of the egg up to birth of the baby?

A: The normal human gestation period is from thirty-seven weeks to forty-two weeks or 259 days to 293…

Q: What are the major events that occur from fertilized egg to birth?

A: Fertilization is the process of fusion of the male gamete (sperm) with the female gamete (ovum) to…

Q: How are mammalian extraembryonic membranes formed?

A: The layers encircling the embryo inside the uterus are known as extraembryonic membranes. The…

Q: Define about  Spermatogenesis and oogenesis in mammals. ?

A: As we know all living organisms are made of  basic unit of structure and function called as cell.…

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: Why do mammalian eggs have a small concentration of yolk, while bird and reptile eggs have a large…

A: Eggs are divided into three types on the basis of the amount of cytoplasm present in them. They are…

Q: Which embryonic germ layer lines the outer surface of the embryo

A: An embryo is the early stage of human development in which organs form critical body structures.

Q: What are the three typesof germ layers that formtissues and organs in animals?

A: The tissue is a group of cells that perform a specific function. Basically a group of cells who…

Q: How do the somites, intermediate mesoderm, and lateral plate mesoderm contribute to embryonic…

A: The early stages in the case of embryonic development start with fertilization. The fertilization…

Q: Why must animals be modifi ed in the embryo stage?

A: In this question, we will discuss the fundamentals of how humans have learned to manipulate genetic…

Q: What is the difference between a mesoderm and a mesoglea?

A: Diploblastic animals contain body wall which develop from 2 embryonic germ layer - ectoderm and…

Q: Which type of cleavage leads to the development of a bird?

A:

Q: What are extraembryonicmembranes?

A: The embryology is the study of the formation and development of embryonic structures right from the…

Q: In a reptile egg, the extraembryonic membrane thatencloses the embryo in a watery environment is…

A: Answer is b.) amnion.

Q: What Causes the End of Cleavage in a Frog Embryo?

A: All frogs reproduce sexually, but instead of the fertilization taking place inside the female, it…

Q: How does oogenesis produce egg cells?

A: Oogenesis is a type of gametogenesis that results in the production of female gametes, also called…

Q: Name the three embryonic tissue layers of vertebrate embryos,and describe the process by which they…

A: Gastrulation is the cycle where differentiated cells from the zygote move to their particular areas.…

Q: If identical human twins develop from separate placentas, when must the embryo have separated? When…

A: Reproduction is the biological process through which the new individual organism is produced from…

Q: What are the types of twins and which of them share a placenta and amniotic sac ?

A: Twin pregnancies occur when the mother conceives two fetuses. Twins are classified based on the…

Q: Which structure connects the embryo to the placenta?

A: Umbilical cord

Q: What is developmental mechanism?

A: In biology, a mechanism is a system of causally interrelated elements and processes that result in…

Q: what characteristics are shared among bird embryos, pig embryos, and human embryos?

A: There are several similarities between the embryos of different species of animals and birds. It was…

Q: Explain the Embryonic Germ Layers ?

A: The layers of cells produced during the early phase of embryo development which gives rise to the…

Q: Does the distribution of Ca²+ in an egg correlate with formation of the fertilization envelope?

A: During fertilization, sperm-induced rise in cytoplasmic Ca2+concentration.

Q: What triggers activation of the egg?

A: The sperm of several species are attracted to the eggs of their own species by the process of…

Q: Which ovary is functional in birds?

A: Ovary is the female reproductive organ found in lower chordates to higher animals. Ovary produces…

Q: Why are the ectoderm and endoderm called the “germ” layer?

A: Gastrulation is the process of the embryonic development in which cell  movements establish the…

Q: What was important about the development of the egg as a part of the reproductive cycle of animals?…

A: Yolk formation in humans

Q: In which type of animalsdoes the placenta exist? Whatis its main function?

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

Q: How do we develop from a single fertilized egg cell?

A: Introduction:- Fertilization is the process of haploid gametes fusing together to generate a diploid…

Q: what is the process which involves in the self-destruction of cells in the developing embryo as…

A: Ans: The process which involves the self destruction of cells in the developing embryo is very…

Q: What is embryological development?

A: Embryo is defined as the early developmental stage of an animal. It is an embryo while it is in the…

Q: What happens during embryogenesis?

A: After the process of fertilization, the process of zygote development starts to form an embryo and…

Q: What are the four extraembryonic membranes of amniotic eggs of birds and other reptiles and what is…

A: Step 1 Extraembryonic membranes are those membranes that surround the embryo of terrestrial…

Q: Part IlI: Discussion 1. How can you distinguish an unfertilized egg from a fertilized egg? 2. As…

A: Fertilization is a natural phenomenon of producing mature male(sperm) and female(egg) gamete in…

Q: What are the defferent mechanism the egg employed to ensure that only one sperm cell will fertilize…

A: Polyspermy is a fatal condition in which several sperm nucleus engage with the female nucleus.…

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: Is a zygote a fertilized egg?

A: Fertilization is the process whereby gametes from each parent fuse to produce a new cell.

Q: What is the fate of the four extraembryonic membranes in embryos of placental mammals?

A: Any of the tissues, derived from the fertilized egg, that encase or in any case add to the help of…

Q: How does the embryo get nourishment inside the mother’s body?

A: Embryo means the developing offspring from the time of approximately 2nd to 8th weeks after the…

Q: What are the consequences of the differences in the yolk amount and distribution of eggs among…

A: The amount and distribution of yolk inside the egg decides the pattern of cleavage. The type of…

Q: During embryogenesis, how do segments become different that one another?

A: The process of forming and developing an embryo from a zygote (zygotic embryogenesis) or a somatic…

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…