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Gastrulation

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Gastrulation of defined as the formation of gastrula from blastula during which three primary germal layers viz.ectoderm mesoderm and endoderm are formed by morphogenetic movements and rearrangement of the cells.
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Mathc column I with column II and select the correct option from the codes given below. {:("Column I","Column II"),("Hyaluronidase",(i)"Acrosomal reaction"),("corpus luteum",(ii)"Morphogenetic"),("Gastrulation","(Progesterone"),("Capacitation",(iv)"Mammary gland"),("Colostrum",(v)"Sperm activation"):}

Read the passage and answer the questions: Implantation is the embedding of the blastocyst into the endometrium of the uterus. Blastocyst is a ball of cells with a large, fluid-filled cavity called the blastocoel. The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and inner cell mass. With the formation of blastocoel, morula is converted to blastula which is called blastocyst in mammals. Assertion (A): Blastocyst undergoes gastrulation to form three germinal layers. Reason (R): This involves cell movements (morphogenetic movement) that help to attain new shape and morphology of embryo.