Give two examples of asexual reproduction in many-celled organisms.

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Presentation transcript:

Give two examples of asexual reproduction in many-celled organisms. 9 8 10 20 180 7 5 2 3 4 40 6 30 130 140 50 120 70 60 1 160 170 110 150 90 80 100 This screen will disappear in 3 minutes. Seconds Remaining.

Budding Fission Regeneration

Define mitosis. 9 8 10 20 180 7 5 2 3 4 40 6 30 130 140 50 120 70 60 1 160 170 110 150 90 80 100 This screen will disappear in 3 minutes. Seconds Remaining.

The production of cells that are genetically identical to the original cell. The process by which a parent cell divides into two identical daughter cells. Cell process in which the nucleus divides to form two nuclei identical to each other, and identical to the original nucleus, in a series of steps (prophase, metaphase, anaphase, and telophase).

What happens to chromosomes before mitosis begins? 9 8 10 20 180 7 5 2 3 4 40 6 30 130 140 50 120 70 60 1 160 170 110 150 90 80 100 This screen will disappear in 3 minutes. Seconds Remaining.

They replicate.

After a cell undergoes mitosis, how are the two new cells alike? 9 8 10 20 180 7 5 2 3 4 40 6 30 130 140 50 120 70 60 1 160 170 110 150 90 80 100 This screen will disappear in 3 minutes. Seconds Remaining.

The two cells are genetically identical. They have the exact same DNA (chromosomes)

Compare and contrast sexual and asexual reproduction. 9 8 10 20 180 7 5 2 3 4 40 6 30 130 140 50 120 70 60 1 160 170 110 150 90 80 100 This screen will disappear in 3 minutes. Seconds Remaining.

Sexual reproduction – offspring is produced when sex cells (egg & sperm) combine. Offspring are genetically different from each other and the parents. Asexual reproduction – One parent produces genetically identical offspring.

What is a zygote and how is it formed? 9 8 10 20 180 7 5 2 3 4 40 6 30 130 140 50 120 70 60 1 160 170 110 150 90 80 100 This screen will disappear in 3 minutes. Seconds Remaining.

A zygote is a cell that is formed when a sperm fertilizes and egg.

How does DNA make a copy of itself? 9 8 10 20 180 7 5 2 3 4 40 6 30 130 140 50 120 70 60 1 160 170 110 150 90 80 100 This screen will disappear in 3 minutes. Seconds Remaining.

The two sides unwind and separate. A complementary strand is made for each. The result is two new strands.

Diagram the phases of mitosis 9 8 10 20 30 7 6 2 3 4 5 50 40 60 140 180 120 130 70 170 1 110 160 100 150 90 80 This screen will disappear in 3 minutes. Seconds Remaining.

www.accessexcellence.org/RC/VL/GG/mitosis2.php

Diagram the phases of meiosis 9 8 10 20 30 7 6 2 3 4 5 50 40 60 140 180 120 130 70 170 1 110 160 100 150 90 80 This screen will disappear in 3 minutes. Seconds Remaining.

http://www.accessexcellence.org/RC/VL/GG/meiosis.php