Creeper in chickens is a condition where chickens are born with very short legs. The creeper allele (C) is dominant over the normal allele (c). Embryos which are homozygous dominant fail to develop in to viable chickens and die before they hatch. What phenotypic ratio would you expect in the live offspring of a cross between two creeper chickens?

2 creeper, I normal

Explanation: According to mendelian law when 2 creeper are crossed we should have 3 creeper and 1 normal but because homozgous allele is lethal(lethal means allele that are deleterious and it causes the death of the individual carrying it) it leads it death and we have 2 creeper and 2 normal. The creeper are heterozyous having two different allele.

For everywhere that homozygous individual that are dominant for creeper occur it will always leads to there death because the allele are lethal

good one: produce hormones that plants grow.

bad one: the problem with organic matter is that while plant nutrients are needed for crop growth, they can also stimulate excessive growth of the wrong plants – mainly, algae.

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