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WorksheetsChapter 12 test
Total questions: 10
Worksheet time: 5mins
The body cells of horses contain 64 chromosomes. How many chromosomes are there in a horse gamete?
16
32
64
128
The photomicrographs show four types of human cells.
Which of the following cell types are diploid?
(1) and (2) only
(2) and (3) only
(1), (2) and (3) only
(1), (2), (3) and (4)
Which of the following statements about cell divisions are correct?
(1) The parent cell gives rise to two daughter cells in mitosis.
(2) Chromosomes replicate once in mitosis and twice in meiosis.
(3) The daughter cells formed in meiosis have the same number of chromosomes.
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
Which of the following events take(s) place during interphase?
(1) DNA replication
(2) breakdown of nuclear membrane
(3) synthesis of mitochondria
(1) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
There are four different stages of mitotic cell division.
Which of the following shows the correct sequence?
Q → R → P → S
P → R → S → Q
R → P → Q → S
Q → P → R → S
Which of the following is/are associated with mitosis?
(1) repair of damaged tissues
(2) growth of tumors
(3) development of a zygote
(1) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
The diagram shows a cell undergoing meiosis.
Which stage of meiosis is shown in the diagram?
metaphase I
metaphase II
anaphase I
anaphase II
The photomicrograph shows a cell undergoing cell division.
This type of cell division occurs
in the skin.
in the testis.
in the anther.
at the root tip.
The cancer drug Vinblastine interferes with the synthesis of spindle fibres. Which stage of the cell cycle of cancer cells will be hampered by this drug?
interphase
prophase
anaphase
telophase
Genetic variation in gametes is brought about by
(1) crossing over of homologous chromosomes.
(2) independent assortment of chromosomes.
(3) random fertilization.
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
