1
IAT (IISER) 2023
MCQ (Single Correct Answer)
+4
-1
A mitotic drug inhibits microtubule formation. Which one of the following stages of karyokinesis will be the first to get affected by the drug?
A
Prophase
B
Anaphase
C
Metaphase
D
Telophase
2
IAT (IISER) 2022
MCQ (Single Correct Answer)
+4
-1

Let ' $X$ ' be the perpendicular distance from the centromere of each chromosome to the equatorial plane of a human cell. Which of the following stages of the cell cycle is most likely to have the HIGHEST average value of $X^{\prime}$ ?

A
Early anaphase
B
Early metaphase
C
Late anaphase
D
Metaphase
3
IAT (IISER) 2020
MCQ (Single Correct Answer)
+4
-1

$$ \text { Match the human cell types or (column I) to the number of chromatids (column II) } $$

Column I Column II
(a) Col$$G_2 \text { phase cells }
$$
(i) 46
(b) $$
G_1 \text { phase cells }
$$
(ii) 92
(c) Spermatogonia (pre-replication)
(iii) 23
(d) Ovum
A
a-ii, b-i, c-iii, d-iii
B
$a-i i, b-i, c-i, d-i i i$
C
a-ii, b-iii, c-i, d-iii
D
a-i, b-ii, c-iii, d-iii
IAT (IISER) Subjects
EXAM MAP