Interactivity: Look Inside
Answer Key
Answers are only provided for assessment items that are not auto-graded or do not offer solutions within
the activity.
1.
Students should identify leaves, stems, flowers, and seeds. Students should note that
leaves are green and the flowers are yellow and white. Also, they might note that the
flowers are at the top of the plant and the leaves are lower and along the sides. Finally, they
may note that the flowers are wider than the leaves.
2.
Most cells contain paired chromosomes, and the chromosomes are identical in all of the
cells. Reproductive cells contain one chromosome from each pair.
3.
The offspring cell has the same number of chromosomes as the parent cells, but the
combination of chromosomes is different. The offspring cell receives half of its
chromosomes from each parent.
4.
Meiosis produces reproductive cells that have only one chromosome from each pair in the
parent cell. Two reproductive cells then join together to form the first cell of a new organism.
That cell has chromosomes from both parents and therefore is different genetically from
both parents.
5.
Dandelion offspring will likely have more genetic variation because 16 chromosomes can be
divided and re-combined in more ways than 8 chromosomes can be.
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