Which of the following characterizesparthenogenesis?(A) An individual may change its sex during itslifetime.(B) Specialized groups of cells grow into newindividuals.(C) An organism is first a male and then a female.(D) An egg develops without being fertilized.

Q: Describe the three major parts of a spermatozoon and state what organelles or cytoskeletal…

A: Sperm: it's the male gamete created by the male gonad referred to as testis. The sperm cell…

Q: what structure contains enzymes needed by sperm to penetrate an oocyte?

A: Fertilization takes place when nuclei of both sperm and an oocyte fuse. Initially, a sperm must fuse…

Q: What is myometrium?

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

Q: If human fetus were exposed to very low levels of both testosterone and estrogen during prenatal…

A: People with both male and female anatomy and mixed characteristics are called as intersexes. The…

Q: Where does fertilisation occur in human beings?

A: Fertilization is the process by which occurs when the male and the female gametes fuse together to…

Q: Explain the Human embryo at beginning of fifth week ?

A: The time between conception and birth of a baby is called the gestation period. A normal gestation…

Q: Describe the major events that transform a fertilized egg into an embryo?

A: BASIC INFORMATION  FERTILIZATION  It is the process of the fusion of the male as well as the female…

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: During which stage of cell division are spermatids formed from the secondary spermatocytes?

A: BASIC INFORMATION  GAMETOGENESIS  It is the process of formation of gametes. The diploid…

Q: Explain the Development of a human oocyte and ovarian follicle?

A: Oogenesis it is the formation of the ovum from undifferentiated primordial cells of the ovary. it…

Q: What are extraembryonicmembranes?

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

Q: What structural features of the endometrium and myometrium contribute to their functions?

A: Uterus is one of the important organ of the female body. It serves many important functions in 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: Identify the structures of an egg and a sperm that aredirectly involved in fertilization.

A: Fertilization is that the method by that the male and also the female gametes (sperms and therefore…

Q: Which tissues and structures develop from ectoderm? frommesoderm? from endoderm?

A: During organic process, 3 primary germed layers, called exoderm, endoderm, and endoderm are shaped…

Q: What determines whether an embryo will develop into a male or a female?

A: The process of fertilization is the union of male and female gametes. It results in the formation of…

Q: Explain the function of gonads.

A: Reproduction is the biological process by which new individual organisms – offspring, are produced…

Q: What is the difference between zygote and embryo?

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

Q: The myometrium is the muscular layer of the uterus, and the endometrium is the (a) serosa, (b)…

A: The uterus is the pear-shaped organ that belongs to the female reproductive system, and is located…

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

A: Oogenesis is defined as the process by which the female sex cells or ova or egg cells are produced.…

Q: If two sperm cells were able to fertilize the same oocyte, how many chromosomes would the zygote…

A: Healthy humans have 46 chromosomes, 23 from the sperm and 23 from the egg. It is widely known that…

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: 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: w does the fertilized egg give rise to the adult

A: Life begins with a single cell known as a Zygote. The single diploid cell produced by the merging of…

Q: How many eggs are released by a human ovary in a month? How manyeggs do you think would have been…

A: The ovary is an organ present in the female reproductive system that produces an ovum (egg cell).…

Q: If one follows 50 primary oocytes in an animal through theirvarious stages of oogenesis, how many…

A: Gametogenesis is a process through which male and female gametes (sperms and eggs) are formed in the…

Q: How does the fertilized egg give rise to the adult body?

A: Introduction  Life starts from single cell called Zygote. Zygote is the single diploid cell resulted…

Q: Briefly describe the stages of spermatogenesis in human?

A: The process that involves development of haploid sperms from the germ cells in the semineferous…

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: Is an embryo a life?

A: Reproduction is a process through which an organism produces organisms of similar kinds. It is of…

Q: Distinguish between the process of spermatogenesis and oogenesis. Illustrate a complete diagram of…

A: Answer 1- the differences are :  the process under which the sperm formation takes place in the…

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…

Q: What is gonads?

A: Human reproduction is the union of male and female gametes generated in the reproductive system.…

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: Concerning reproductionwhat is the function of thetesticles?

A: Introduction: Testicles are one of the male reproductive organs called as male gonads. These are…

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: In traditional accounts of fertilization, which characteristics are associated with eggs, and which…

A: The female reproductive cell, or gamete, in most anisogamous species is the egg cell, or ovum…

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: How many follicle cells will fit inside? Is there an abundance of yolk within the cytoplasm of the…

A: Oocyte It is an immature ovum or egg cell which is a female gametocyte or germ cell. It is involved…

Q: What happens in the process of fertilization in animals and humans?

A: The cells of the biological unit of life. the cells comprise tissues which collectively forms an…

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 time period for which sperm and egg are viable?

A: The mixed glands that serve the function of gamete production in the male reproductive system and…

Q: After the eighth week of development an embryos is referred to as what?

A: After the 8th week of development, the embryo is referred to as "fetus"

Q: During which of the 3 stages of oogenesis does the oocyte nucleus move?

A: Oogenesis- Oogenesis is the process of formation of female gametes. This process begins inside the…

Q: Name two organ-system derivatives of each of the three germ layers.

A: A germ layer is a gathering of cells in an undeveloped organism that collaborate with one another as…

Q: What occurs in the female after fertilization of the egg? What happens if the egg is not fertilized?

A: The menstrual cycle refers to the monthly series of changes that a woman's body undergoes in order…