Name the third tier of embryonal cells in pinus formed.

Q: Which pair of hormones are required for a callus to differentiate?

A: Callus is the undifferentiated tissue present in the plant basically they are unorganized parenchyma…

Q: How are mammalian sperm cells produced and incubated at a lower temperature than body temperature?

A: Mammalian sperm is the male gamete that is produced by the process of spermatogenesis in males. Once…

Q: How is a zygote formed?

A: Sexual reproduction: It is a type of reproduction that involves the fusion of gametes. It required…

Q: What is the thick connective tissue layer that surrounds the parenchyma of the ovary called?

A: Ovary is the female reproductive organ.It has distinctively two regions: cortex which contains…

Q: Name two structures derived from each of the three embryonic tissue layers: endoderm, ectoderm, and…

A: Two structures derived from each of three embryonic tissue layers are : Endoderm  gives rise to…

Q: What is embryos

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: Define germinal center

A: These are sites that are abundantly present in the secondary lymphoid organs- the lymph nodes and…

Q: What is cephalization? How does lateral symmetry favor cephalization?

A: Symmetry is the balanced distribution of duplicate body parts or shapes within the body of an…

Q: Where is zygote formed?

A: Zygote is a diploid cell formed by fusion of male and female gametes. It then undergoes mitotic…

Q: How could you tell if a prepubertal female had an overly active zona reticularis?

A: Adrenal gland cortex is divided into  Zona glomerulosa Zona fasciculata  Zona reticularis  Zona…

Q: What do yu mean by umbilical cord and state its function and location.

A: The process of fusion of male and female gamete is called fertilization. The diploid cell formed…

Q: How is ovary attached to back wall?

A: Ovaries are the female gonads and the primary female reproductive organs. They secrete hormones,…

Q: Match the germ layer with the correct derivative Gastrodermis v [ Choose ] Ectoderm Endoderm…

A: There are 3 germ layers ectoderm, mesoderm and endoderm giving rise to different organs in…

Q: Compare the structures of the egg and sperm. What structural modifications do sperm have that…

A: The process of producing new organisms from the pre-existing ones is called reproduction. It may be…

Q: Name the embryonic membranes and give the importance of each

A: Embryonic membranes are the membranes that lead to the development of the embryo in the mother's…

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: What is the first appearance of embryogenic callus?

A: The callus is basically an unorganized growing mass of parenchyma cells that is responsible for…

Q: What is the cell divisionduring the first stage of theembryonic developmentcalled? How is this…

A: The process by which a parent cell divides into two identical daughter cells, is called Cell…

Q: Give two examples of invertebrate hormones that regulate metabo-lism.

A: Invertebrates are group of animals that do not have a vertebral column. These animals possess an…

Q: Explain C. elegans embryos.

A: Answer: Introduction: The nematode worm Caenorhabditis elegans is a minor and organized organism.

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: 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: Prepare a labeled sketch of a region of the epididymis.

A: The Epididymis is a tube that connects a testicle to a vas deferens in the male reproductive system.…

Q: vetebrae

A: The vertebrae regions shown here are the cervical , thoracic and the lunbar vertebrae .

Q: Describe the mode and mechanism of nematocyst discharge in Cnidari

A:

Q: Which of the following is an embryonic tissue found in animals?

A:

Q: . How does the fertilization envelope form in sea urchins?What is its function?

A: Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete…

Q: Is anther are bilobed if yes then why?

A: Plants are non-motile living beings that shows the capacity of producing their own food utilizing…

Q: Describe the process of spermiogenesis, including the formation of the acrosome, axial filament, and…

A: Spermiogenesis  The process of formation of mature sperms (spermatozoa) from spermatids is known as…

Q: Which layer is responsible for encasing the growing embryo?

A: An embryo is an early stage of development that is present in a multicellular organism. Embryonic…

Q: Describe the three stages of cellula stage takes place.

A: The breakdown of glucose for the generation of energy is referred to as cellular respiration. It…

Q: What essential role is played by the epididymis?

A: Male reproductive system includes the male sex organs that are involved in the process of sexual…

Q: Differentiate between human skin cell and human ovum.

A: Cell is a basic membrane-bound unit and it is often called as the basic building blocks of all…

Q: What is the process in which the germ tissue layers form?

A: Germ layers are the three primary cell layers, formed in the earliest stages of embryonic…

Q: Describe features of the umbilical cord and the blood vessels it contain

A: In placental mammals, the umbilical cord (birth cord) is a tube between the developing embryo…

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: Briefly describe the function  of the following:  - epididymis

A: The epididymis is a single, long coiled duct that courses along the posterolateral side of the…

Q: Name the other two membrane except primary membrane present outside the mature ovum.

A: The egg cell is the female gamete and upon fertilization with the sperm forms the zygote. It is…

Q: Match the tissue to the germ layer it develops from. Question   Epithelium…

A: The three germ layers are particularly seen in vertebrates during the embryonic development.…

Q: Draw a labelled diagram of a section through ovary.

A: The female reproductive system includes the ovaries, fallopian tubes, uterus, vagina, vulva, mammary…

Q: Describe a zygote?

A: The fusion of male and the female cells is known reproduction.

Q: why does a high concentration of Abscisic acid (ABA) inhibit elongation of the coleoptile segments?

A: According to the question, we have to explain the reason behind the inhibition of elongation of…

Q: Explain how the embryo forms from the zygote

A:

Q: What is ripened ovary known as?

A: Plants are mainly multicellular organism, predominantly photosynthetic eukaryotes of the kingdom…

Q: Find the equilbrium point and reproduction number

A: Reproduction number :- The basic reproduction number can you easily be calculated as a ratio of…

Q: Name the fully developed part of ovary containing egg.

A: The fully developed part of the ovary containing egg is called Graafian follicle and the associated…

Q: Describe the body wall of the 55-hour chick embryo.

A: Embryo:- An embryo is a eukaryotic organism's early developmental stage after an egg (produced from…

Q: Draw the Taenia solium egg and adult

A: Tinea sodium is also known as the pork tapeworm. It belongs to a cyclophyllid cestode family of…

Embryology