Reproduction
What is the process by which organisms make more members of their own species?
Reproduction
How many parents are involved in asexual reproduction?
1 parent
Binary fission
What is the name for the type of cell division when one cell splits into two new daughter cells?
During which phase of mitosis do chromosomes line up in the middle of the cell?
Metaphase
What are the two types of reproduction?
- Sexual reproduction
- Asexual reproduction
How do the offspring compare to the parent organism?
The offspring are identical to the parent (genetically the same!)
Which type of asexual reproduction occurs when the offspring develops as an outgrowth on the parent organism?
Budding
How many daughter cells are created during mitosis?
2 daughter cells
During which phase of mitosis do chromosomes first become visible? (HINT: the nuclear membrane also breaks down during this phase)
Prophase
Which type of reproduction produces offspring more quickly? (asexual or sexual?)
Asexual reproduction
TRUE OR FALSE: Multicellular organisms do NOT perform asexual reproduction
FALSE. There are multicellular organisms that do perform asexual reproduction (like spider plants!)
*Typically, less complex organisms perform asexual reproduction
Which type of asexual reproduction occurs when a parent organism separates into different fragments and each part develops into a new organism.
Fragmentation
What are the order of the phases of mitosis?
Telophase
Which type of reproduction produces offspring that are genetically different from the parents? (asexual or sexual?)
Sexual reproduction (offspring has a unique combination of genes; half the genes from mom and half the genes from dad)
List TWO ADVANTAGES of asexual reproduction. (You MUST list TWO to get all the points!)
EXAMPLE ANSWERS:
- Faster; quicker
- One parent (no time wasted on finding a mate)
- Produces more offspring
Which type of asexual reproduction occurs when an organism regrows a lost part?
Regeneration
Why do unicellular organisms perform mitosis?
For reproduction (make more of their species)
During which phase of mitosis do the chromosomes move apart from each other to opposite ends of the cell?
Anaphase
Which type of reproduction is better? Why?
NO RIGHT ANSWER. Both have advantages and disadvantages! :)
EXAMPLE ANSWERS:
- Sexual reproduction because it leads to more diversity in the species
- Asexual reproduction because it is quicker
What is ONE disadvantage of asexual reproduction?
EXAMPLE ANSWERS:
- Lack of diversity (all members of the species are genetically similar)
- Inability to adapt if the environment changes
- Mutations can spread quickly
Bacteria are unicellular organisms that split into two in order to reproduce. Which type of asexual reproduction do bacteria use?
Binary fission
Why do multicellular organisms perform mitosis?
Growth, repair damages, replace old cells
What percentage of a cell's life is spent dividing?
10%