Asexual Reproduction
Sexual Reproduction
Advantages
Disadvantages
Selective Breeding
100

How many parents are needed for asexual reproduction to occur?

Only 1 parent cell is needed

100
How many parents are needed for sexual reproduction to occur?
2 parents (1 male, 1 female) are needed
100
Name an advantage of asexual reproduction?
Only needs one parent, happens very quickly, offspring are clones of parents, successful characteristics are guaranteed, requires less energy and time
100
Name a disadvantage of asexual reproduction.
Lack of variation, organisms are more susceptible to diseases, organisms are less likely to adapt to new environments
100

What is selective breeding?

Choosing desired traits from parents to pass on to offspring.

200
Are the daughter cells exactly the same as or different from the parent cells?
Exactly the same (identical copies)
200
Are the offspring exactly the same or different from the parents? Why?
The offspring are different because they get characteristics from the father and the mother.
200
Name an advantage of sexual reproduction.
Lots of variation can occur, Variations can help organisms to survive in new environments, Help to protect entire populations from being killed by diseases
200
Name a disadvantage of sexual reproduction.
Organisms/Cells take a longer time to mature, Must have a mate (2 parents), Gametes (sperm/egg) can be lost, Takes more energy and time
200

What is an advantage to selective breeding in corn?

We selected for larger corn kernels and over time the corn evolved to be much larger.

300

Name 3 types of asexual reproduction.

Binary Fission (Mitosis), Budding, and Fragmentation/Regeneration

300
What is fertilization?
When a male cell (sperm) joins with a female cell (egg/ovum) to create a zygote/new organism
300
Which type of reproduction can occur very quickly?
Asexual Reproduction
300
Which type of reproduction takes more time and energy? Why?
Sexual Reproduction because it takes more time for cells to mature and organisms to be fully formed (made of many cells)
300

What is a disadvantage of selective breeding?

Leads to inbreeding and a higher risk of diseases.

400

A hydra reproduces through which type of asexual reproduction?

Budding

400
What is the difference between internal fertilization and external fertilization?
Internal fertilization happens inside the body, while external fertilization happens outside of the body.
400
Which type of reproduction creates organisms with a lot of variations? Why
Sexual Reproduction because the offspring get characteristics from both parents, rather than just one parent.
400
Which type of reproduction lacks variation?
Asexual Reproduction because the cells are exactly the same as the original parent cell.
400

Which of the following would be a question we would ask about the Negative effects of selective breeding?

a. How much money can I get?

b. What animals do I need to breed together to get the results I want?

c. What are the last impacts on the animals health?

d. Is it pretty?

C!!

500

Which type of asexual reproduction do most bacteria use?

Binary Fission (Mitosis)

500
What happens during pollination?
During pollination, pollen from the anther (male) is moved to the pistil (female), where it will travel down to the egg to fertilize it. This causes a seed to form.
500
Which type of reproduction creates organisms that would have an easier time adjusting to a new environment? Why?
Sexual Reproduction because there are more variations amongst the organisms created.
500
Which type of reproduction is more susceptible to disease (more likely to die of disease)? Why?
Asexual Reproduction because the cells are all the same and are more likely to die if a disease spreads.
500

What is the evolution of a species due to selective breeding called?

Artificial Selection

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