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Cell Growth & Reproduction

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Presentation on theme: "Cell Growth & Reproduction"— Presentation transcript:

1 Cell Growth & Reproduction
Review PPT

2 Why can’t a cell get too large?
The size of the DNA cannot increase and it would go into information overload. It wouldn’t be able to feed itself.

3 What is the advantage and disadvantage of asexual reproduction?
Advantage : A lot offspring can be produced at a time. Disadvantage : Lack genetic diversity.

4 What is reproduction that involves one parent?
Asexual reproduction

5 This is producing offspring from two parents.
Sexual reproduction

6 These are threadlike structures that carry information that determines traits.
Chromosomes

7 What is the difference between Prokaryotes verse Eukaryotes?
Prokaryotes lack a true nucleus and membrane bound organelles. Eukaryotes have a true nucleus and has membrane bound organelles.

8 Describe the stages of a single cell’s life.
Or the grows, prepares for division, and divides to form two daughter cells. THE CELL CYCLE

9 The Cell Cycle The period between each mitosis? Interphase

10 The Cell Cycle What happens in G1 phase? What happens in S phase?
Cell Growth and adding organelles What happens in S phase? DNA synthesis What happens in G2 phase? A little bit more growth and preparation for cell division

11 The Cell Cycle What happens in the M phase?
The DNA separates and splits into two. Includes mitosis and cytokinesis.

12 The division of the cell nucleus, or separation of chromosomes.
MITOSIS

13 Mitosis What are the 4 stages of mitosis? Prophase Metaphase Anaphase
Telophase

14 Mitosis What happens in prophase?
Genetic material condenses and become visible. Spindle fibers form Nuclear membrane breaks down Centrioles move to the pole

15 MITOSIS What happens in metaphase?
Chromosomes line up along the equator. Spindle fibers attach to the centromere and centrioles.

16 Mitosis What happens in anaphase?
Chromatids separate and begin moving to the poles.

17 Mitosis What happens in telophase? Chromosomes are at the poles
Chromosomes disperse Spindle fibers break down Nuclear membrane reforms

18 Mitosis When mitosis is complete, the division of cytoplasm occurs. What is that called? Cytokinesis

19 This is the process of making sex cells?
Meiosis What is another name for sex cells? Gametes

20 Meiosis When homologous chromosomes come together, what is that called? tetrad

21 Meiosis What is it called when chromosomes exchange places on the tetrad? Crossing over

22 Meiosis How many cells are produced in meisosis? 4
It involves two stages : meiosis 1 and meiosis 2

23 Meiosis What happens to the chromosomes during meiosis?
It results in 4 haploid cells. (half the number of chromosomes)

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