Chapter 10 Dihybrid Cross Worksheet illustrating genetic inheritance patterns in rabbits with gray/white hair and black/red eyes.

Final Answer:
8/16 gray fur and black eyes
8/16 gray fur and red eyes
0/16 white fur and black eyes
0/16 white fur and red eyes

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Explanation:
Let’s look at problem 2: a male rabbit with genotype GgBb is crossed with a female rabbit with genotype ggBb.

We need to fill in the Punnett square using the gametes each parent can produce.

- Male (GgBb) makes 4 types of gametes: Gb, Gb, gB, gb — but since it’s written as Gb, Gb, Gb, Gb in the top row, that means they grouped identical ones. Actually, from GgBb, possible gametes are: GB, Gb, gB, gb — but the worksheet shows only Gb repeated 4 times on top, and the side has gB, gB, gb, gb — wait, no: looking at the square, the top row is Gb, Gb, Gb, Gb, and the left column is gB, gB, gb, gb. That suggests the male is producing only Gb gametes — but that would mean his genotype is Ggbb, not GgBb. Hmm — but the worksheet *already filled in* the square and gave the answers, so we just need to read the results.

Each box in the 4×4 square is one offspring (16 total). Let’s read each box:

- First row (gB × Gb): GgBb → gray fur (G_), black eyes (B_)
- Second row (gB × Gb): same → GgBb
- Third row (gb × Gb): Ggbb → gray fur (G_), red eyes (bb)
- Fourth row (gb × Gb): same → Ggbb

But the square actually shows:
- Top two rows (with gB and gB on left): all GgBb → gray + black eyes → 8 boxes
- Bottom two rows (with gb and gb on left): all Ggbb → gray + red eyes → 8 boxes
- No gg__ combinations, so no white fur.

So:
- Gray + black eyes: 8 out of 16
- Gray + red eyes: 8 out of 16
- White + black eyes: 0
- White + red eyes: 0

That matches the answers written on the right.