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Cell Cycle And Cell Division

Question
CBSEENBI11002112
Wired Faculty App

The cell -mediated immunity inside the human body is carried out by

  •  T- lymphocytes

  • B - lymphocytes

  • thrombocytes

  • erythrocytes

Solution

A.

 T- lymphocytes

T - lymphocyte receptors can recognise the only antigen that bound to cell membrane proteins these lymphocytes mediates CMI (cell-mediated immunity). B - lymphocytes are the major effector molecules of humoral immunity. Erythrocytes are red blood cells. Thrombocytes or platelets secrete factors that are involved in the vascular repair.

Some More Questions From Cell Cycle and Cell Division Chapter

 Namethe five phases of of Prophase I.

 What are two types of cells on the basis of presence or absence of nucleus ?

Name an important event that occurs during meiosis and not during mitosis.

Name a cell that has half the number of chromosomes. Name the process responsible for the reduced number.

Name the sub-stage of meiosis in which crossing over takes place.

At which stage of mitosis, the two chromatids of each chromosome separate and move towards opposite poles.

Name the cell division which is responsible for growth and healing of wounds.

What type of cell division can produce variations ?

Name the active site of meiosis in flowering plants.

 What is synapsis ?

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