Where does fertilisation occur in human beings?

Q: Of the three polar bodies , one came from an unequal division of the ovum , but from where did the…

A: The process of the formation of the egg within the ovary is called oogenesis. This process is also…

Q: Explain the role of placenta for human life ?

A: Placenta act as channel to exchange matter from mother to foetus. Placenta bind to foetus with the…

Q: What are the two types of embryonic folding?

A: In embryonic folding, the flat trilaminar disk turns into a lot of round shape embryos due to the…

Q: What are three notable features between the fertilized and unfertilized egg?

A: Sperms and eggs are the gametes produced by male and female animals respectively in sexual…

Q: How does the process of meiosis relate to the human life cycle?

A: Meiosis is the nuclear reduction division of diploid cells into haploid cells thereby producing a…

Q: What is the first major event that occurs during organogenesis?

A: Organogenesis is the formation and development of organs from embryonic cells or germ layers.  It…

Q: How do the shape and structure of the uterus of the fetal pig compare with that of the human?

A: Reproductive system is used for the sexual reproduction. Female internal reproductive organs include…

Q: State the concept of  Fertilization ?

A: Reproduction is the process of producing a new offspring. Reproduction process is vital for the…

Q: Which sex normally contributes the mitochondrial genes to the offspring?

A: mtDNA (mitochondrial DNA) is found in the mitochondria, cellular organelles inside the eukaryotic…

Q: Describe the fertilization process and how an egg prevents fertilization by more than one sperm?

A: The reproductive system of the body is one of the important systems of the human body which ensures…

Q: Into which structures do the trophoblast cells of the developing embryo, differentiate?   a)   The…

A: The fusion of male and female gamete produces zygote. This process is known as fertilisation. Zygote…

Q: Is there a exchange of cells between the mother and the fetus through the placenta?

A: We have to explain whether there is an exchange of cells taking place through placenta.

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 embryonic stem (ES) cells ?

A: Stem cells are cells that are undifferentiated or "blank." This ensures they have the potential to…

Q: When does an embryo become a fetus? Select one: a. When gastrulation forms the three primary germ…

A: At the end of the 8th week after fertilization (10 weeks of pregnancy), the embryo is considered a…

Q: What is fertilisation? Give examples

A: Human beings are sexually reproducing organisms. The male reproductive system consists of pair of…

Q: which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b)…

A: The mesoderm, or middle tissue, gives rise to most of the muscle and connective tissues. Finally the…

Q: What events occur between the fourth and eight weeks of embryonic development

A: FOURTH TO EIGHT WEEKS OF EMBRYONIC DEVELOPMENT : human embryonic development refers to the…

Q: Define external fertilisation. Mention its disadvantages.

A: Fertilization is the process by which male and female gametes are fused together, initiating the…

Q: What are the basic developmental events that occur duringneurulation?

A: Embryology is a branch of science that deals with the principles of the embryos from the stage of…

Q: Which of the following primary germ layers nervous tissue develops from? a ) yolk sac b) endoderm…

A: The life of a human being begins in the womb as an embryo and undergoes various developmental stages…

Q: hich structure is the outermost extra-embryonic membrane? A ) Placenta ‘ B ) Yolk sac D ) Chorion

A: An extraembryonic membrane is one among the membranes that assist within the development of the…

Q: What is Gynandromorph in biology?

A: Entomology is defined as the branch of zoology which is involved in the scientific study of insects…

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: at what point does life begins in a pregnancy, in other words, does it begin at initial conception,…

A: In human, haploid (n) sperm from male fused with haploid (n) egg cell of female to form a diploid…

Q: name two organism in which external fertilization take place .

A: Fertilization is a process in which two gametes fuse together which results in new individuals.…

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 happens to the second sperm nucleus, the one that does not fertilize the egg cell? What is the…

A: Sexual reproduction is a fusion of male and female gametes to produce offspring from the zygote.…

Q: Why is the fate of many cells determined during gastrulation? Are there many cytoplasmic…

A: Gastrulation is the process of embryonic development in which the blastula, an embryo with a single…

Q: Define self-fertilization?

A: Fertilization refers to the process of fusion of male and female haploid gametes to form a diploid…

Q: How is and egg (oocyte) prepared during oogensis for fertilization? Why is preparation essential to…

A: The process of formation of gametes is known as gametogenesis. In females, oogenesis is a process of…