In laughing gulls, long wings (L) are dominant to short wings (l) and black wing tips (B) are dominant to grey wing tips (b). Draw the Punnett square for a cross between a heterozygous long-winged + homozygous black-tipped laughing gull and a short-winged heterozygous black-tipped laughing gull:

What is the probability that the two gulls will produce an offspring whose phenotype is... (show the cross)
* Long wings with black tips?
* Long wings with grey tips?
* Short wings and black tips?
* Short wings and grey tips?
* What is the genotypic ratio?
* What is the phenotypic ratio?