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Zygote undergoes cleavage while moving t...

Zygote undergoes cleavage while moving through the isthmus of the oviduct towards the uterus and forms daughter cells called blastomeres. The embryo with 8 to 16 blastomeres is called a ____A_____which continues to divide to form ____B_____ in uterus. The blastomeres in the____B_____are arranged into an outer layer called____A_____and an inner group of cells called the inner cell mass.

A

`|{:(" A"," B"," C"),("Morula","Blastocyst","Haemocytoblast"):}|`

B

`|{:(" A"," B"," C"),("Morula","Gastrula","Haemocytoblast"):}|`

C

`|{:(" A"," B"," C"),("Blastula","Gastrula","Trophoblast"):}|`

D

`|{:(" A"," B"," C"),("Morula","Blastula","Trophoblast"):}|`

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The correct Answer is:
D
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The blastomeres in the blastocyst are arranged into an outer layer called ul((A)) and an inner group of cells attached to trophoblast called ul((B)) .

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Assertion: The embryo with 8 to 16 blastomeres is called a morula. Reason: The blasometeres in the morula are arranged into an outer layer called trophoblast and an inner group of cells attached to trophoblast called the inner cell mass.

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.

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. The process that transforms the embryo into a three-layered stage is called.....

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. The ectoderm cells will form the........

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. Which organ is formed during gastrulation ?

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. State of embryo development, in which implantation occurs in human female is:

The kind of growth in which both the daughter cells formed after each mitotic division retain the capacity to divide is called as

Given below are four statements each with one or two blanks. Select the option which correctly fills up the blanks in any two statements. (A). The embryo with 8 to 16 blastomeres is called a (i)._____ (B). Embedding of the (i)._____ in the endometrium of the uterus is called implantation and it leads to (ii). ______ (C). After implantation finger like projections appear on the trophoblast called (i)._____ which are surrounded by the (ii)._____ abnd maternal blood. (D). Inner cell mass contains certain cells called (i)._____ cells which have the potency to give rise to all the tissues and organs.

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