Answer :
Only blue offspring.
If a white budgie and a blue budgie are crossed.
For example, yyBB or yyBb yybb
Let's use yyBb for the blue budgie, which gives us yB, yb, yB, yb as the columns on the punnet square's horizontal rows.
In contrast, the rows on the vertical column of the punnet square will be represented by the letters yb, yb, yb, yb in the white color yybb.
If this representative have a dihybrid cross genes, all children in the punnet square will be yyBb, indicating that they are all Blue offspring alone.
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