Define acrosome

Q: Explain block to polyspermy?

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

Q: Define cleavage furrow

A: Cleavage furrow is formed in the cell when during cell division, the cytoplasm of the cell divides…

Q: What do you mean by acrosome?

A: In most animals, the sperm is the male gamete that fuses with the female gamete and forms the…

Q: Define a teratogen and provide several examples of teratogens.

A: BASIC INFORMATION  ENZYMES They are the catalyst. They help in accelerating the chemical reaction.…

Q: Describe the developmental events of the second and third trimester

A: Introduction: A normal pregnancy is divided into trimesters- first, second, and third.  The first…

Q: Describe briefly amniocentesis and its purpose.

A: The process of fertilization includes a sperm (male gamete) fusing with an ovum (female egg). In…

Q: Explain endometrium.

A: The reproductive system consists of two system namely male reproductive system and female…

Q: Define mamma; pl. mammae

A: In scientific literature, many words have been derived from the language of literate people i.e.…

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: Why would the deltoid tuberosity of a male body builder be greater than that of an age matched,…

A: The deltoid tuberosity is the triangular, rough region on the anterolateral surface of the middle of…

Q: Define amniocentesis

A: During pregnancy, several procedures and tests are done by medical practitioners. These tests help…

Q: Describe the formation and implantation of a human blastocyst

A: Developmental biology is the branch of science that includes the studies of a diversity of…

Q: Define the term lacteal?

A: A lacteal is a lymphatic capillary that absorbs dietary fats in the villi of the small intestine. .…

Q: Explain why growth of the blastomeres cannot take place  during cleavage?

A: Development in biology occurs to ensure the formation of multicellular organisms from the single…

Q: State various functions of placenta.

A: The placenta is a structure that develops is mainly derived from the extraembryonic membrane during…

Q: Describe the function of lacteals.

A: Lacteal is a specialized lymphatic capillary coming from villi. They are found present within the…

Q: Describe what happens during the first days of embryonic development from the first cell division…

A: Human embryo development occurs through cell division and the differentiation of cells. Human embryo…

Q: Define puberty

A: Step 1 In relation to reproduction, the life cycle of an individual is divisible into three phases –…

Q: Name the two indicated structures below the arrow, seen here in the Pinus ovule.

A: Pinus is a tree that belongs to a group of plants known as gymnosperms. This plant is mainly…

Q: Name the enzymes present in peroxysomes?

A: A membrane bound organelle present in the cytoplasm of all eukaryotic cells is termed as…

Q: Explain C. elegans embryos.

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

Q: Define Preprophaseband

A: Mitosis is a process in the cell, where a single cell divides in two identical  daughter cells. The…

Q: Define neonatal period.

A: Embryo is defined as the earliest stage of development of the fertilized zygote(formed by the fusion…

Q: Define chordamesoderm

A: Chordamesoderm is also known as axial mesoderm.

Q: Define the process of lactation? List the hormones involved in pregnancy and lactation process.

A: Lactation can be defined as the secretion of milk from the mammary glands to feed her young. The…

Q: Describe the structure and function of the placenta and umbilical cord

A: The placenta and umbilical cord are important for the survival of the fetus.

Q: Explain the implantation of blastula and differentiate the embryonic from extraembryonic tissues.

A: The development of multi-cellular organisms begins from a single-celled zygote, which undergoes…

Q: Define inguinal

A: The abdominopelvic region is the cavity present beneath the diaphragm and houses parts of the…

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: What is the acrosome?

A: A spermatozoon is motile sperm cells or moving from of the haploid cells that is the male gamete. A…

Q: Explain the term trophoblast.

A: An embryo is defined as an organism in the early stages of growth and differentiation, from…

Q: What is this condition that results if the fertilized egg fails to descend down to the uterus?

A: Reproduction is the process by which an organism creates more of its own progeny. Reproduction is…

Q: During third trimester of pregnancy

A: A pregnancy timeline is of 40 weeks. The weeks are grouped and divided into three trimesters. The…

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 amniocentesis is and why it would be performed

A: Introduction Amniotic fluid is a protective fluid that surrounds the developing embryo in the uterus…

Q: Explain briefly the menstural cycle of women.

A: The female reproductive system is known to undergo regular changes that are more specifically known…

Q: Define term Homosapiens

A: Charles Darwin stated that the evolution of man would take not thousands of years but millions of…

Q: Define external spermatic fascia

A: Biology terms are fundamental concepts and terms used in biology, which is the study of life and…

Q: Why do flexion and torsion events occur in the developing embryo?

A: LONGITUDINAL FOLDING (Torsion) produces both head- and tailfolds, or flexion, and creates a cranial…

Q: explain how polyspermy is blocked

A: Polyspermy is the fertilization of an ovum by more than one sperm. It is prevented by mechanisms…

Q: explain PEV with example

A: A gene is the basic physical and the functional unit of heredity. Genes are made up of the DNA. Some…

Q: State some functions of placenta.

A: Pregnancy is also called as gestation, during which one or more offspring develops in the uterus of…

Q: Name the process of onset of menstural cycle on purbety.

A: Step 1 The menstrual cycle is regular reoccurring physiological changes found in human females as…