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: highlights of the processes of cleavage and implantation?
A: During coitus, the semen from the penis is released into the vagina. The sperms reach the oviduct.…
Q: At which stage of development does XCI initially occur?
A: In many species, genes located on the sex chromosome determined the sex of an individual. In…
Q: in an ectopic pregnancy what happens?
A: Pregnancy is a condition in which an embryo develops inside a female. Under normal conditions, the…
Q: Which structures develop from the neural tube and somites?
A: the structures that develop from the neural tube and somites are :
Q: Is the mammalianembryonic development director indirect?
A: The process of embryonic development is otherwise known as embryogenesis. Fertilization is the…
Q: What is the difference between internal & external fertilization?
A: The process in which a male gamete commonly known as sperm that is released by the male reproductive…
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: State the concept of Fertilization ?
A: Reproduction is the process of producing a new offspring. Reproduction process is vital for the…
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: Describe the periods of prenatal development?
A: Embryology is the study of development and growth of fertilized eggs(zygote) into mature embryos.…
Q: State the roles of progesterone and estrogen in fetal development.
A: BASIC INFORMATION FERTILIZATION It is the process of the fusion of the male as well as the female…
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: 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: 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: Describe two ways that an oocyte avoids polyspermy.
A: The fertilization of the egg takes place by the fusion of the sperm and the ovum. Sperm is produced…
Q: Name the three germ layers, and identify several types of structures thatarise from each.
A: Ans: Germ layers: The layers which are formed during the early stage of embryonic development are…
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: Describe the three stages of prenatal development.
A: Prenatal development is derived from the Latin word "natalis" which means "relating to birth". It is…
Q: Describe the sequence of events, the timing, and the control of the development of the gonads and…
A: Initially the gonad is bipotential.
Q: What are the cells producedin the first stage of theembryonic developmentcalled?
A: The process in which the embryo forms and develops is known as embryonic development.
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 are the development phenomenas occurs at the age after 11 years?
A: Humans have extremely long development stages compared to other animals due to the complex nature of…
Q: Where does fertilization normally occur?
A: Reproduction ensures the continuity of species on earth. It can occur in two ways that is sexual…
Q: what does a oogenesis concept map with 10 words or phrases look like?
A: oogenesis concept map :-
Q: What happens during the stage of dilation, the stage of expul- sion, and the placental stage of true…
A: Labor Series of events that take place in the genital organ in an effort to expel the viable…
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: How do the mechanisms of fertilization ensure control of both quality (fertilization by a sperm of…
A: Fertilization is the process of fusion of haploid gametes to form diploid zygotes. The zygote…
Q: Explain how hormones are the mediators of development?
A: Ans: Hormones: These are chemicals which signals the body and controls the range of functions such…
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 happens during the secretory phase of the endometrium?
A: The uterine cycle represents the cyclic changes that occur inside the uterus of a female.
Q: what is celluar cleavage thats occur in the early stages of development?
A: The development of an embryo is characterized by the process of cell division and cellular…
Q: What is the significancw of cleavage in early development? Discuss.
A: The repeated mitotic divisons of the fertilized egg (zygote) is called cleavage. It is preceeded by…
Q: Describe the major events of fertilization.
A: The combination of haploid gametes such as egg and sperm to form the diploid zygote is known as…
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: 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: 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: How are Tim's varicoceles affecting the ability to conceive?
A: Varicocele is referred to as swelled veins of the scrotum. Formation of varicocele is attributed to…
Q: Why does puberty occur too late or too early in some individuals?
A: Puberty is a crucial stage in human development, marking the transition from childhood to adulthood.…
Q: Prior to fertilization, where is the male gamete located?
A: Flowers are also known as blossom. Their primary function is reproduction in plants. They also a…
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 is indirect development?
A: Development involves the functional and physiological maturation of an individual. It is a…
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: 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"
Are different stages of development tend to generate differences in stimulating cleavage and coalitions?
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