Q: Briefly describe and compare male and female gametogenesis in human.
A: The process where a haploid cell is formed from a diploid cell through meiosis and cell…
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: Explain the process of spermatogenesis and oogenesis in vertebrates.
A: Spermatogenesis is the by which sperm cell develops. Oogenesis is the growth process by which the…
Q: Give the origins and functions of the chorion, amnion, allantois, and yolk sac.
A: The extraembryonic membrane can be defined as the type of membrane which helps in the development of…
Q: Describe the processes of fertilization, embryonic development, fetal development, and birth.
A: Answer- Every organism reproduces for their continuity of species. In sexual mode of reprodution the…
Q: Which of the following structures secretes the hormone that sustains the corpus luteum during the…
A: Corpus luteum is a temporary endocrine structure involved in ovulation and early pregnancy. The…
Q: Explain Briefly Compare and contrast the role of hormones that causes changes to the male and female…
A: At the age of about 8 the hypothalamus gland increases its production of gonadotropin releasing…
Q: List the steps in oogenesis.
A: The process of differentiation of the egg-cell which is a type of gametogenesis is known as…
Q: Describe the process of oogenesis
A: Sexually reproducing organisms have a reproductive system consisting of primary sex organs called…
Q: Describe how the human blastocyst gives rise to the embryo and its extraembryonic membranes.
A: The fusion of male and female gametes form a zygote during fertilization.
Q: describe implantation including the process of placentation, embryonic development, and membrane…
A: The processes of implantation, placentation, embryonic development and membrane formation occurs…
Q: Define amniocentesis
A: During pregnancy, several procedures and tests are done by medical practitioners. These tests help…
Q: Outline the postfertilization events that lead to formation of a blastocyst.
A: Reproduction is the phenomenon of producing offspring from the parent. The reproduction can be…
Q: Define segmentation, and give two examples of segmented structures in the embryo.
A: The science that investigates the processes by which multicellular organisms like plants and animals…
Q: Outline the processes of spermatogenesis and oogenesis in animals.
A: Spermatogenesis and oogenesis are the process of formation of male and female gametes that is sperm…
Q: Differentiate the primitive streak of the 24-hour from the primitive streak of the 18-hour
A: Primitive Streaks and its peculiar shape at various stages--- Primitive streak is very important…
Q: Distinguish between modes of mesoderm formation
A:
Q: Describe the major events in embryonic development
A: Introduction: Embryonic development is an 8-week process and has phases of development during which…
Q: Contrast embryonic development with fetal development.
A: Embryology is the branch of biological sciences that studies the formation and development of…
Q: Explain the major developmental events that occur during the embryonic period.
A: Introduction:Embryonic development is an 8-week process and has phases of development during which…
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: Describe the events that occur following fertilization ofthe oocyte and the process of implantation…
A: The menstrual cycle of a woman repeats itself every 28 days and consists of four phases namely the…
Q: Identify and describe the stages of human embryonic development
A: Stages of embryonic developement: Germinal stage ~ Fertilization, cleavage, blastulation,…
Q: oviposition for
A: Oviposition is the process of expelling eggs from the oviduct to the external environment.
Q: Identify the labeled structures in the embryo shown:
A: Archenteron is a structure which is observed in a developing embryo in the Gastrulation stage. It is…
Q: Describe the major developments during each trimester of human gestation.Describe the major…
A: Gestation is the time of advancement during the conveying of an embryo or fetus inside viviparous…
Q: List a number of teratogens and how they impact prenatal development. Provide examples such as…
A: Teratogen is a substance that lead to birth defects in an embryo or fetus. As a baby grow in the…
Q: describe the events that occur over the 6 day period following fertilization of an ovum
A: An ovum or egg is the female gamete of an individual. It can fertilize with the male gamete to form…
Q: List and describe some developmental anomalies associated with gastrulation.
A: The term gastrulation basically address the early development of embryo from 1-D layer of epithelial…
Q: Give the approximate length of the various parts of the oviduct of a female chicken including its…
A: The different parts of oviduct of a female chicken along with their length are: Infundibulum: 2…
Q: The birth starts thanks to increased ... ... release of glucocorticoids from the fetus. ...…
A: The time between the initiation of productive contractions and the birth is referred to as the birth…
Q: Describe all the steps involved in the formation of an embryo from the reproductive cells of men and…
A: Answer: The reproductive cell in males are : SPERMS The reproductive cell in females are : EGG
Q: Name the structure formed by the villi of the embryo and the uterus of the mother.
A: The uterus or womb is a major female hormone-responsive secondary sex organ of the reproductive…
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: Give gestation period of elephant, dog, cow.
A: The fertilization can be defined as the process in which the male sperm fuses with the female egg to…
Q: Describe the developmental changes in the fertilised ovum until implantation occurs in the uterus.
A: Sexual reproduction is marked by the process in which the male and female gametes fuse together by…
Q: List and give the functions of the 4 major extraembryonic fetal membrane
A: The extraembryonic membrane are those extra embryonic structure which are forward from extra…
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: The order in which the physiological stages occur during embryonic development is and
A: The fusion of haploid male gamete(sperm) and female gamete(egg/ovum) to form diploid zygotes is…
Q: Briefly summarize the main phases of animal development from fertilization to organogenesis, and…
A: After a sexual intercourse , the fertilization process takes place. Once the fertilization takes…
Q: Describe each stage of the development from Fertilized egg to blastocyst stage
A: Fertilization is a crucial step in the process of sexual reproduction. The zygote is formed when the…
Q: Define fertilization.
A: Embryonic development is also known as embryogenesis. This process includes the formation and…
Q: Label the parts of the chick embryo
A: Parts Of The Chick Embryo oropharyngeal membrane angiogenic cell cluster Ectoderm Endoderm…
explain the developmental processes that will happen to the fertilized ovum of a dog or any animal
Step by step
Solved in 2 steps
- explain the developmental processes that will happen to the fertilized ovum of a dog .Give the function/purpose of the following terms: germ layers ectoderm mesoderm endoderm blastocyst yolk sacThe development of sex and gender is a good example of a developmental cascade because: Group of answer choices Although having an X and a Y chromosome at conception typically leads to the development of testes during prenatal development, this may not lead to typical male genitalia if certain hormones are present later in development Two people may have the same gonads early in prenatal development but end up with different external genitalia and gender identities as a result of differences in the prenatal environment All of the options listed here are correct Having two X chromosomes at conception typically leads to the development of ovaries during prenatal development, which typically leads to high levels of estrogen in puberty, which typically leads to a female gender identity in adulthood
- Choose all of the correct statements about the formation and role of somites during development. Somites are formed when the notochord signals adjacent mesoderm cells Somites are ectoderm cells, so they will form teeth, jaws, and skin Somites signal adjacent cells to form ossification centers, which eventually grow bone to form vertebrae and ribs O Somites will directly turn into the neural tube (spinal cord)In-vitro fertilization occurs in the laboratory. The resulting embryos remain in a laboratory culture for up to six days before being transferred to the potential mother. If fertilization had occurred naturally (i.e., inside the female reproductive system instead of in-vitro), where would the embryo be and what developmental processes would it be undergoing during those first six days of development?Put “disappear”, if they disappear in the process of development and put the word “dissolved”, if they dissolved in the process of development. •hypoblast •intermediate mesoderm •lateral plate mesoderm •mesoderm •morula •neural crest cells •neurulation •notochord •occipital somites •paraxial mesoderm •primitive node •primitive streak •trophoblast •yolk sac •amniotic cavity •blastula •cleavage •ectoderm •embryoblast •embryonic disc •endoderm •epiblast •fertilization •gametes •gastrulation
- Describe the process of mammalian and avian gastrulationHow many follicle cells will fit inside? Is there an abundance of yolk within the cytoplasm of the mammalian oocyte? Where will the fertilized egg develop and how will it receive its nutrients? please helpThere are 6 major events in fertilization. Discuss the process of fertilization or conception, with emphasis on the sperm-egg interaction. Proteins on the sperm plasma membrane bind to ZP3 molecules within the zona pellucida of the egg. Why is this event important? Zona binding triggers the acrosome reaction, in which the sperm plasma membrane fuses with the outer acrosomal membrane, causing exocytosis of acrosomal contents. What is in the "acrosomal content"? Acrosomal enzymes begin to dissolve a hole in the zona pellucida. This enzymatic degradation, accompanied by rapid sperm tail beating, moves the sperm through the zona. Where does the sperm intend to reach?
- After the eighth week of development an embryos is referred to as what?During the organogenesis stage, several of the five essential developmental processes take place. Choose two of these essential processes and describe how and when they occur during the organogenesis stage. Be specific about the cells, tissues, and organs involved and the results.After fertilization a developing embryos goes through several changes. At about 2-3 days, what is the embryo referred to as?