26

Lesson 26 of 84 ยท Heredity

Experimentโญ 30 XP

Dominant and Recessive Traits (Part 2)

๐ŸงชLab Brief #26

Dominant and Recessive Traits (Part 2).

๐ŸŽฏ Your mission

Predict it first. Then prove yourself right (or wrong).

โšก The twist

Nature loves to surprise the careful watcher.

๐Ÿคฏ

Mind = Blown

๐Ÿ”ฌ The more you look, the more nature shows you.

๐Ÿ”ฎ

Make a hypothesis first

Before you start: write down what you think will happen, and why.

What You'll Learn

Dominant alleles are expressed when present, while recessive alleles are only expressed when two copies are present. A person with one dominant and one recessive allele shows the dominant trait.

Key Words

  • chromosome
  • mitosis
  • trait

Materials Needed

  • scissors
  • microscope (or magnifying glass)
  • slides

Safety First

  • Do not look directly at the sun or bright lights.
  • Clean up spills immediately to prevent slipping.

Steps

Step 1 โ€” Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 โ€” Do

Compare and contrast prokaryotic and eukaryotic cells. Create a Venn diagram showing their similarities and differences.

Step 3 โ€” Observe

Note any unexpected results and think about why they happened.

Step 4 โ€” Record

Share your findings with the class or a partner and discuss what you learned.

Check Your Understanding

Question 1

1 of 3

What is a dominant trait?

๐ŸŒ

Where you see this in real life

This shows up in your everyday life more than you'd think.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Try one experiment in real life this week โ€” even a tiny one.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's the most surprising thing you learned today?โ€

๐ŸŽฏ

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

๐ŸงชShare card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

๐Ÿ–จ๏ธ

Checkout complete lesson on Heredity for 6th Grade

Get the full Heredity track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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