Never the same
Every offspring is unique.
Brothers and sisters
Children of the same parents look a bit different from each other.
Why?
What this lesson covers
The idea
Each gamete carries a different set of instructions, and these mix in different ways at every union of sperm and egg, so each offspring, even among siblings, is unique.
Brothers and sisters
Children of the same parents look a bit different from each other.
Why?
- Each gets a different mix of instructions from the parents
- They are exact copies
- They eat different food
A different mix
Press Next step.
Unique combinations
Because each gamete carries a different mix of instructions, every offspring gets a new combination of features from both parents. This is why each offspring is unique.
Each gamete carries a different mix of instructions, so every offspring gets a new combination and is unique.
Notes
Different mixes in each gamete make every offspring unique.
Check yourself
Why is each offspring from sexual reproduction unique?
Each gamete carries …
Brothers and sisters from the same parents are …
Sexual reproduction leads to offspring that are …
- It gets a new combination of instructions from both parents — correct. Yes!
- It is an exact copy. Exact copies come from asexual reproduction.
- It copies only one parent. It combines features from both parents.
- the same instructions as every other gamete. Each gamete carries a different mix.
- a different mix of instructions — correct. Yes!
- no instructions. Gametes carry instructions.
- exact copies. Each gets a different combination.
- always identical. Each gets a different combination.
- not exactly alike — correct. Yes!
- unique — correct. Yes!
- always identical to the parents. Offspring are not exactly like either parent.
- always identical to each other. Each offspring is unique.