Atlas of plant and animal histology

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Quiz. The cell.

CELL CYCLE
Mixed

Choose true or false. Each right answer scores 1, and each wrong answer scores -1. Not answered questions score 0.



True False

1) Some cells never divide.

2) The somatic cells of animals can perform meiosis and produce gametes.

3) The number of cell divisions of somatic cells in animals is controlled by other cells of the organism, as well as by the features of the somatic cells.

4) During the cell cycle, the G2 phase takes place before the S phase.

5) The interphase encompasses the G1, S, and G2 phases of the cell cycle.


6) Cells choose to divide or not during the G1 phase.

7) Cells that differentiate to carry out a function quit the cell cycle during the G1 phase.

8) The progression of the cell cycle is driven by phosphorylation and dephosphorylation processes.

9) Cyclins are proteins synthesized only during the S phase, together with the DNA.

10) During the S phase of the cell cycle of eukaryote cells, the replication of DNA starts at one point of the DNA strand.


11) Primers are DNA sequences needed to separate both DNA strands during replication.

12) In animal cells, centrosomes are duplicated during the G1 phase.

13) The M phase is the cell cycle stage where cell division happens.

14) The nuclear envelope is disorganized during metaphase.

15) Kinetochoric microtubules contact chromosome kinetochores.


16) During anaphase, the two centrosomes are duplicated, so there are four centrosomes, and each daughter cell inherits one of the two pairs of centrosomes.

17) The division furrow is parallel to the major axis of the mitotic spindle.

18) In animal cells, cytokinesis is driven by microtubules.

19) In plant cells, the physical separation of the two daughter cells is by assembling a new cell wall between them.

20) In plants, the direction of the growth of an organ is determined by the orientation of the mitotic spindle.

21) This cell is in metaphase.

22) This cell is in prophase.

23) This cell is in anaphase.

24) This cell in prophase.

25) This cell is in metaphase.

26) This cell is in anaphase.

27) This cell is in metaphase.

28) In this image, 3 telophases, 1 metaphase, and 1 prophase are observed.

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