Cell Cycle and Division

5.0(1)
studied byStudied by 10 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/34

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

35 Terms

1
New cards

centrosome

The , which had undergone duplication during the S phase of interphase, now begins to move towards opposite poles of the cell.

2
New cards

haploid cells

Four are formed at the end of meiosis II.

3
New cards

replication of DNA

There is no during interkinesis.

4
New cards

multinucleate condition

In some organisms, karyokinesis is not followed by cytokinesis as a result of which arises leading to the formation of syncytium (e.g., liquid endosperm in coconut)

5
New cards

Interkinesis

is followed by prophase II, much simpler prophase than prophase I.

6
New cards

Diakinesis

represents the transition to metaphase.

7
New cards

Mitosis

or the equational division is usually restricted to the diploid cells only.

8
New cards

Meiosis

is the mechanism by which conservation of a specific chromosome number of each species is achieved across generations in sexually reproducing organisms, even though the process, per se, paradoxically, results in a reduction of chromosome number by half.

9
New cards

convenience mitosis

Though for has been divided into four stages of nuclear division (karyokinesis), it is very essential to understand that cell division is a progressive process and very clear- cut lines can not be drawn between various stages.

10
New cards

G2 phase

During the , proteins are synthesized in preparation for mitosis while cell growth continues.

11
New cards

cell cycle

The is divided into two basic phases.

12
New cards

Prophase

is marked by the initiation of condensation of chromosomal material.

13
New cards

process of evolution

Variations are very important for the .

14
New cards

homologous chromosomes

Crossing over is the exchange of genetic material between two .

15
New cards

sexual reproduction

The production of offspring by includes the fusion of two gametes, each with a complete haploid set of chromosomes.

16
New cards

G1 phase

During the , the cell is metabolically active and continuously grows but does not replicate its DNA.

17
New cards

number of chromosomes

Since the in the parent and progeny cells is the same, it is also called equational division.

18
New cards

Gametes

are formed from specialized diploid cells.

19
New cards

equatorial plate

The bivalent chromosomes align on the .

20
New cards

animal cells

In , during the S phase, DNA replication begins in the nucleus, and the centriole duplicates in the cytoplasm.

21
New cards

M Phase

The represents the phase when the actual cell division or mitosis occurs.

22
New cards

chromosomal material becomes

The untangled during the process of chromatin condensation.

23
New cards

growth of multicellular organisms

The is due to mitosis.

24
New cards

Chromosomes

are seen to be composed of two chromatids attached together at the centromere.

25
New cards

initiation of DNA

It corresponds to the interval between mitosis and replication.

26
New cards

S

or synthesis phase marks the period during which DNA synthesis or replication takes place.

27
New cards
28
New cards
29
New cards
30
New cards
31
New cards
32
New cards

M Phase

The starts with the nuclear division, corresponding to the separation of daughter chromosomes (karyokinesis), and usually ends with the division of cytoplasm (cytokinesis)

33
New cards
34
New cards
35
New cards