MCQ
Protein synthesis in an animal cell takes place.
- AOnly in the cytoplasm.
- BIn the nucleolus as well as in cytoplasm.
- ✓In cytoplasm as well as in mitochondria.
- DOnly on ribosomes attached to the nuclear envelope.
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$(I)$ $RBCs$ are formed in the white bone marrow in adults.
$(II)$ $RBCs$ have red colour because presence of protein called haemoglobin.
$(III)$ Nucleus is present in $RBC$ in most of the mammals and are biconcave in shape.
$(IV)$ A healthy individual has $12 -16\, gms$ of haemoglobin in every $1000\, ml$ of blood.