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Biology

Biology
Antibody is produced by

Erythrocytes
Osteoblast
B-lymphocytes
Skin cells

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Biology
The number pyrenoids in Chlamydomonas is

1
3
2
4

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Biology
Closely stacked flattened sacs (plants only)

Lysosomes
None of these
Vacuoles
Golgi apparatus

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Biology
A man whose blood group is not known meet with a serious accident and needs blood transfusion immediately. Which one of the blood group mentioned below and readily available in the hospital will be safe for transfusion

AB, Rh-
O, Rh+
O, Rh-
AB, Rh+

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Biology
The pollen grains of Pinus are carried to its female cone through the

Pollen tube
Wind
Animals
Insects

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Biology
The nitrogen fixing bacteria present in the root nodules of leguminous plant is

Pseudomonas
Salmonella
Clostridium
Rhizobium

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MORE MCQ ON Biology

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