1
Question
Encapsulated embryos of Taenia contained in gravid proglottides are
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Solution
The correct option is A Both B and C
The hexacanth embryo, hexacanth membranes, basement membrane, embryophore and the eggshell or chorionic membrane together is known as onchosphere. The gravid proglottids which pass out from the host body contain embryos in the onchosphere stage. Just after fertilization, the zygote gets surrounded by the yolk in the ootype received from the vitelline glands through the vitelline duct. The zygote and the yolk then become enclosed in a thin shell or chorionic membrane which is formed from the yolk material. The structure, thus, formed, is called a capsule which passes into the uterus. Capsules also include the gravid proglottids. So, option D is correct.
The hexacanth embryo, hexacanth membranes, basement membrane, embryophore and the eggshell or chorionic membrane together is known as onchosphere. The gravid proglottids which pass out from the host body contain embryos in the onchosphere stage. Just after fertilization, the zygote gets surrounded by the yolk in the ootype received from the vitelline glands through the vitelline duct. The zygote and the yolk then become enclosed in a thin shell or chorionic membrane which is formed from the yolk material. The structure, thus, formed, is called a capsule which passes into the uterus. Capsules also include the gravid proglottids. So, option D is correct.
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