What is the regular form of gamopetalous corella in these figures?

Q: Explain block to polyspermy?

A: Polyspermy: - It is the process, where egg has been fertilized by so many sperms. In this condition…

Q: Give a detailed description of the histology of filliform papillae

A: Description: It is present all over the tongue. It appears elongated and conical shape, rich in…

Q: Why did amniocentesis fail to detect PKU? What disorders can amniocentesis detect?

A: Phenylketonuria is the expansion of PKU. It is also known as hyperphenylalaninemia. It occurs 1 in…

Q: Differentiate the effects of primary from secondarytuberculosis.

A: The disease could be caused by pathogenic organisms when they invade the host body. The infections…

Q: State the exact location of ocellar spots.

A: Ocellar spots are the simple eye present in many invertebrates. Invertebrates are the organisms that…

Q: How is a zygote formed?

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

Q: How does the hypophysis-corpus luteum negativefeedback work? What is thename given to the…

A: The corpus luteum is the endocrine structure that is present temporarily in the female ovaries. It…

Q: What is gemmae?

A: Liverworts are small, green, terrestrial plants. They do not have true roots, stems, or leaves.…

Q: What are the two mainspecies of taenias that causehuman diseases?

A: Taenia is a genus of phylum Platyhelminthes. They are also known as tapeworms because of their…

Q: What is the function of sustentacular cells in the production ofspermatozoa?

A: Spermatozoa or sperm cells are motile male gamete cells. They carry the genetic material of males…

Q: Describe the Gastrulation in Caenorhabditis elegans.

A: The study of embryo development is known as embryology. This covers the transformation of a…

Q: Describe structure of mature archegonium in Riccia

A: Riccia is a liverworts genus in the order Marchantiales. These plants are thalloid and small and are…

Q: What is the value or function of rapid contraction of the stalk of Vorticella?

A: Vorticella is a eukaryotic protist belonging to the Ciliophora phylum. They are aquatic organisms…

Q: )Name four (4) structures / tissues that form from each of   the primary germ layers in the gastrula

A: Embryology is the study of development and growth of fertilized eggs(zygote) into mature embryos…

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 is polyspermy prevented?

A: Polyspermy is the process by which multiple sperms fertilize a single egg. This happens in only 1%…

Q: Name the excretory organs in Platyhelminthes.

A: Platyhelminthes is a group of flatworms that lack a body cavity and called acoelomate. This phylum…

Q: How big is a zygote?

A: A zygote is a cell that forms as a result of fertilization or fusion of male and female gametes. The…

Q: What is zygote?

A: Reproduction is an essential feature of all living organisms. It is the ability of an organism to…

Q: Which is the odd man out based on the third appendage? Asiomorpha, Tachypleus, Menalaides, or…

A: An appendage (or outgrowth) is an external body part, or natural prolongation, that protrudes from…

Q: What is the function of thevitellus in the vertebrate egg?How are these eggs classifiedaccording to…

A: Vertebrates comprise all species of animals within the subphylum Vertebrata. Vertebrates include…

Q: name the long tube extended from mouth to anus?

A: The human body is a machine that has various organs to make it work. Each organ is part of a system…

Q: Explain C. elegans embryos.

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

Q: What is the differencebetween double closedcirculation and simple closedcirculation?

A: Circulatory system is one of the most important physiological system of the body that helps in the…

Q: Give position and structure of female sex organ in Riccia

A: Riccia: It is also known as the floating crystal wort. It is called as the floating crystalwort…

Q: Define antherozoids?

A: Antheridium is the haploid organ that produces male gametes in fungi, algae, bryophytes, etc.

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

A:

Q: Answer in one word or one line.(i) Give the common name of Periplanata americana.(ii) How many…

A: Insects are hexapod invertebrates and the largest group within the arthropod phylum. Insects have a…

Q: Define zona pellucida

A: Membrane, in biology, the skinny layer that forms the fringe of a living cell or an enclosed cell…

Q: hat happens during the active segmentation stage of zygote?

A: The two basic events of sexual reproduction are gamete formation and the fusion of male and female…

Q: Describe the appearance and functional changes in a babyboy with: (1) epispadias and (2) hydrocele.

A: Epispadias and hydrocele both are a birth defect that generally occurs in baby boys and girls. This…

Q: What is the clinical perineum?

A: The pelvic cavity contains many major organs and especially it forms the major reproductive organs.…

Q: Why is microscopic examination important to cestodes?

A: Cestodes - It is a parasitic flatworm of the class Cestoda and platyhelminthes phylum.   Some of the…

Q: What is the first appearance of embryonic callus?

A: Callus is defined as an unorganized tissue mass growing on solid substrate. Callus forms naturally…