Download presentation
Presentation is loading. Please wait.
Published byBarnaby Gibbs Modified over 6 years ago
2
The Punnett Square Rap DJ Jazzy C
3
The Punnett Square Rap Pick out a letter for the dominant trait.
Spell out the cross for the two that mate. Set up the square- your four-box tool. Drop and drag til each box is full. List the genotypes- the letter pairs you filled. Give the phenotypes- the traits they build. Now do the math- the ratios and fractions. Answer the question. That’s the last action.
4
1. Pick out a letter for the dominant trait.
Mendel crossed two heterozygous purple flowered pea plants. What percent of offspring are white flowered?
5
1. Pick out a letter for the dominant trait.
Mendel crossed two heterozygous purple flowered pea plants. What percent of offspring are white flowered? P for Purple p for White
6
2. Spell out the cross for the two that mate.
Mendel crossed two heterozygous purple flowered pea plants. What percent of offspring are white flowered? P for Purple p for White Pp x Pp
7
Pick out a letter for the dominant trait.
Spell out the cross for the two that mate.
8
3. Set up the square- your four-box tool.
Pp x Pp
9
3. Set up the square- your four-box tool.
Pp x Pp
10
3. Set up the square- your four-box tool.
Pp x Pp P p
11
4. Drag and drop til each box is full.
Pp x Pp P P DROP! DRAG! p p
12
Set up the square- your four-box tool.
Drop and drag til each box is full.
13
Pick out a letter for the dominant trait.
Spell out the cross for the two that mate. Set up the square- your four-box tool. Drop and drag til each box is full.
14
5. List the genotypes- the letter pairs you filled.
PP Pp p Pp pp
15
5. List the genotypes- the letter pairs you filled.
PP Pp pp P PP Pp p Pp pp
16
6. Give the phenotypes- the traits they build.
PP Pp pp = Purple = White P PP Pp p Pp pp Mendel crossed two heterozygous purple flowered pea plants. What percent of offspring are white flowered?
17
7. Now do the math- the ratios and fractions.
p P PP Pp pp = Purple = White = 1/4 (25%) P PP Pp = 2/4 (50%) = 1/4 (25%) p Pp pp Purple = 75% chance White = 25% chance
18
8. Answer the question. That’s the last action.
PP Pp pp = Purple = White = 1/4 (25%) Mendel crossed two heterozygous purple flowered pea plants. What percent of offspring are white flowered? = 2/4 (50%) = 1/4 (25%) Purple = 75% chance White = 25% chance
19
8. Answer the question. That’s the last action.
PP Pp pp = Purple = White = 1/4 (25%) Mendel crossed two heterozygous purple flowered pea plants. What percent of offspring are white flowered? = 2/4 (50%) = 1/4 (25%) 25% Purple = 75% chance White = 25% chance
20
The Punnett Square Rap Pick out a letter for the dominant trait.
Spell out the cross for the two that mate. Set up the square- your four-box tool. Drop and drag til each box is full. List the genotypes- the letter pairs you filled. Give the phenotypes- the traits they build. Now do the math- the ratios and fractions. Answer the question. That’s the last action.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.