Answer:
Recessive lethal genes can code for either dominant or recessive traits, but they do not actually cause death unless an organism carries two copies of the lethal allele. Examples of human diseases caused by recessive lethal alleles include cystic fibrosis, sickle-cell anaemia, and achondroplasia.
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Answer:
Tt. TT
Explanation:
those are the only two possible, unless tall is a recessive trait, then it's tt
C) change of a caterpillar into an adult butterfly.
