Q.26 Centrioles are made up of ______ microtubules:
A) 9 C) 3
B) 27 D) 12
Q.27 Which of the following structures is absent in higher plants and found in animal cells:
A) Centriole C) Mitochondria
B) Cytoskeleton D) Cytoplasm
Q.28 The soluble part of cytoplasm or fluid that remains when all organelles are removed is known
as:
A) Solution C) Cytoskeleton
B) Gelatin material D) Cytosol
Q.29 The outer membrane of the nuclear envelope is at places continuous with the:
A) Golgi apparatus C) Lysozymes
B) Endoplasmic Reticulum D) Peroxisomes
Q.30 Down's syndrome is a result of non-disjunction of______ pair of chromosomes that fails to
segregate:
A) 21
st
C) 18
th
B) 22
nd
D) 24
th