MCQ
Persons of blood group $A$ contain
- ✓Antigen $A$ and antibodies $b$
- BAntigen $A$ and antibodies $a$
- CAntigen $A$ and $B$ and no antibodies
- DNo antigens and both $a$ and $b$ antibodies
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(i)$ Plant cells have centrioles which are absent in almost all animal cells.
$(ii)$ Ribosomes are the site of protein synthesis.
$(iii)$ The middle lamella is a layer mainly of calcium carbonate which holds the different neighbouring cells together.
$(iv)$ In animal cell, steroidal hormones are synthesized by smooth endoplasmic reticulum.
Of the above statements