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Cross a heterozygous big-footed turtle with a small-footed turtle.

B - big-footed

b - small-footed

Question at position 19
19

Fill in the Blank
1 point



Question at position 19
Fill in the blanks that correspond with the missing information in the punnett square. (Heterozygous big-footed turtle goes on top, small-footed turtle goes on the left side)



1.
Question Blank 1 of 8
B
; 2.
Question Blank 2 of 8
b
; 3.
Question Blank 3 of 8
B
; 4.
Question Blank 4 of 8
b
; 5.
Question Blank 5 of 8
Bb
; 6.
Question Blank 6 of 8
Bb
; 7.
Question Blank 7 of 8
Bb
; 8.
Question Blank 8 of 8
Bb
Question at position 20
20

Fill in the Blank
1 point



Question at position 20
What is the ratio of possible phenotypes of the F1 generation? (enter numeric answer only)

Question Blank 1 of 2
type your answer...
big-footed :

1 answer

To fill in the Punnett square for a cross between a heterozygous big-footed turtle (Bb) and a small-footed turtle (bb), we start by setting up the square:

       B   |   b
-----------------
   b | Bb  |  bb
-----------------
   b | Bb  |  bb

Now, we fill in the blanks from your question:

  1. Question Blank 1 of 8: B
  2. Question Blank 2 of 8: b
  3. Question Blank 3 of 8: B
  4. Question Blank 4 of 8: b
  5. Question Blank 5 of 8: Bb
  6. Question Blank 6 of 8: bb
  7. Question Blank 7 of 8: Bb
  8. Question Blank 8 of 8: bb

Now, regarding the phenotypes in the F1 generation:

  • Bb (big-footed) = 2
  • bb (small-footed) = 2

The ratio of possible phenotypes of the F1 generation is:

  • Big-footed : Small-footed = 2 : 2, which can also be simplified to 1 : 1.

So the answer for Question at position 20 is:

1 big-footed : 1 small-footed.

You can just input the numeric answer for the ratio of big-footed turtles in the fill-in-the-blank, which would be "1".