Tall/Short Pea Plant

Question

Cross a heterozygous tall pea plant with a homozygous tall pea plant.

T - tall

t - short

Question at position 14
14

Fill in the Blank
1 point



Question at position 14
Fill in the blanks that correspond with the missing information in the punnett square. (Heterozygous tall pea plant goes on top, Homozygous tall pea plant goes on the left side)



1.
Question Blank 1 of 8
T
; 2.
Question Blank 2 of 8
T
; 3.
Question Blank 3 of 8
t
; 4.
Question Blank 4 of 8
t
; 5.
Question Blank 5 of 8
TT
; 6.
Question Blank 6 of 8
Tt
; 7.
Question Blank 7 of 8
Tt
; 8.
Question Blank 8 of 8
tt
Question at position 15
15

Fill in the Blank
1 point



Question at position 15
What is the ratio of possible phenotypes of the F1 generation? (enter numeric answer only)

Question Blank 1 of 2
4
tall :
Question Blank 2 of 2
0
short
Question at position 16
16

Fill in the Blank
1 point



Question at position 16
What is the ratio of possible genotypes of the F1 generation? (enter numeric answer only)

Question Blank 1 of 3
2
TT;
Question Blank 2 of 3
2
Tt;
Question Blank 3 of 3
0
tt
Question at position 17
17

Numeric
1 point



Question at position 17
How many were heterozygous? (enter numeric answer only)

How many were heterozygous? (enter numeric answer only)

2
Question at position 18
18

Multiple Choice
1 point



Question at position 18

What percent of the F1 generation were short?

What percent of the F1 generation were short?

0%

25%

50%

75%

Answer 1

Let's go through your questions step by step.

Fill in the blanks for the Punnett Square

1. Question Blank 1: T (from the heterozygous tall parent)
2. Question Blank 2: T (from the heterozygous tall parent)
3. Question Blank 3: T (from the homozygous tall parent)
4. Question Blank 4: T (from the homozygous tall parent)
5. Question Blank 5: TT (Top left cell)
6. Question Blank 6: Tt (Top right cell)
7. Question Blank 7: Tt (Bottom left cell)
8. Question Blank 8: tt (Bottom right cell) — This would actually be incorrect; it should be TT or Tt, but since you specified a homozygous tall plant as one parent, it should not produce tt offspring.

So the correct filled punnett square is:

   | T | T |
-------------
T | TT | Tt |
-------------
t | Tt | Tt |

Question 15: Phenotype Ratio

Phenotypes:

• Tall (TT or Tt)
• Short (tt)

Since there are no tt in the offspring:

• 4 tall
• 0 short

So the answers would be:

• 4 tall : 0 short

Question 16: Genotype Ratio

Genotypes:

• TT: 2 (TT offspring)
• Tt: 2 (Tt offspring)
• tt: 0 (no short plants)

So the answers would be:

• 2 TT; 2 Tt; 0 tt

Question 17: Heterozygous Count

Heterozygous count:

• There are 2 Tt offspring.

Question 18: Percentage of Short Plants

Since there are 0 short plants (tt):

• The percentage of short plants is 0%.

To summarize:

• Question 14:
  • 1: T
  • 2: T
  • 3: T
  • 4: T
  • 5: TT
  • 6: Tt
  • 7: Tt
  • 8: tt (but this should be TT/Tt based on your problem)
• Question 15: 4 tall : 0 short
• Question 16: 2 TT; 2 Tt; 0 tt
• Question 17: 2
• Question 18: 0%