TMA4/BIO413

TMA Quiz Questions TMA: TMA4/BIO413  SCORE=9.50 BIO413 - DEVELOPMENTAL BIOLOGY Dr. Chukwu Maureen (mchukwu@noun.edu.ng ) 1 Which of the following is not an extraembryonic membrane produced by the embryos of amniotes? amnion allantois chorion yoke 2 Which of the following is not a type of cleavage pattern? latitudinal biradial spiral  bilateral 3 Which of the following enzymes checks the entry of more than one sperm into the ovum? neuramindinase zona lysin catalase hyaluronidase 4 Which of the following egg membrane types does calcareous shell of hen’s egg belong? primary secondary tertiary quadrinary 5 Into which of the following classes can a bird’s egg be grouped? isolecithal mesolecithal telolecithal centrolecithal 6 Which of the following is not a class of egg based on the distribution of the yolk? isolecithal centrolecithal mesolecithal telolecithal 7 Which of the following tissues is not a product of the mesoderm? pancreas kidneys  red blood cells cardiac muscle 8 What is the function of the amniotic fluid in mammalian embryonic development?  it gives rise to extra embryonic endoderm it results in the formation of the hypoblast it serves as a shock absorber for the developing embryo all of the above 9 Somites differentiate into the following except skeletal muscle vertebrae smooth muscle dermis of all vertebrates 10 Which of the following is not a calss of egg based on the amount of yolk present? microlecithal centrolecithal microlecithal mesolecithal 11 Where does gastrulation begin in frogs? vegetal region marginal zone vegetal hemisphere primary mesenchyme 12 Which of the following is not a primary egg membrane? vitelline membrane chorion zona pullicida zona radiata 13 Which of the following is / are the next stage of development ih animals after cleavage and blastula formation? I. gastulation, II. gastrulation, III. invagination I only II only I and III II and III 14 In mammals the centromeres accompanying the male pronucleus produces its asters largely from: condensed proteins cAMR dependent protein kinase activity proteins stored in the oocyte phosphorylated sperm specific histones 15 Where does capacitation of the sperm occur? In the sperm sac In the mitochondrion In the acrosome vesicle Inside the female reproductive tract 16 Acrosomal vesicle is derived from which of the following? Mitochondrion Plastids Plasmalemma Golgi apparatus 17 What has the sperm been likened to? grains flowers seeds stalk 18 Which of the following hydrolyzes molecules of ATP and converts released chemical energy into the electrical energy that propels the sperm? ATPase ADPase Dynein Lactase 19 Which of the following is not a constituent of the sperm? An air filled vacuole A haploid nucleus A propulsion system A sac of enzymes 20 Which of the following is not a major event of conception? Contact and recognition between sperm and egg Regulation of sperm entry into the egg Fusion of genetic material of sperm and egg Inactivation of egg metabolism