1. Sexual vs. Asexual Reproduction
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2. How do Sexual and Asexual Reproduction compare?
DNA transfer through sexual reproduction (meiosis) and asexual reproduction (mitosis) equip organisms in different ways for survival.
Sexual reproduction: offspring receive chromosomes from two parents.
Asexual reproduction: a single parent cell divides into two new cells.
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3. Sexual Reproduction
Sexual reproduction is the combining of an egg and sperm.
Results in offspring with a combination of physical traits from both parents
This is good for variation in genes.
Most mammals, birds, and fish reproduce sexually.
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4. Asexual Reproduction
One parent produces a new organism identical to itself.
Has an exact copy of parent’s DNA
Takes place relatively quickly compared to sexual reproduction
Ex: bacteria, some plants, and some invertebrates (animals) like sponges, jellyfish, and worms
Just for laughs:
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5. What are the characteristics of each of the two types of reproduction?
Same or Different?
What are the characteristics of each of the two types of reproduction?
Type of Reproduction
Number of Parents
Mitosis or Meiosis
Offspring DNA compared to Parent(s)
Time taken
How offspring look compared to Parent(s)
Sexual
Asexual
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6. Same or Different?? Type of Reproduction Number of Parents
Mitosis or Meiosis
Offspring DNA compared to Parent(s)
Time taken
How offspring look compared to Parent(s)
Sexual 2
Meiosis
Different
Longer
Different but maybe similar
Asexual 1
Mitosis
Same/
Identical
Shorter
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7. Comparing Asexual and Sexual Reproduction- Advantages and Disadvantages
Name some advantages of sexual reproduction
What characteristics would an organism have that would make sexual reproduction more beneficial for that organism?
Name some advantages of asexual reproduction
What characteristics would an organism have that would make asexual reproduction more beneficial for that organism?
For sexual reproduction-organisms are typically multicellular and able to move.
Advantages would be better genetic diversity allowing for better chances for adaptation.
For asexual reproduction-organisms are typically unicellular and smaller (many microscopic) and many also unable to move freely (sessile).
Advantages would be no need to find a mate and reproduction at a faster rate than in sexual reproduction.
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