By taking a glance at the pedigree we can see that rickets transmission is not autosomal but instead it is x linked recessive.
Without wasting time look at the no of offspring of 1 that is 4 since two out of four have rickets then the chances of having rickets by method of probability is 1/2
Please mark me as brainliest.
Invertebrate doesn't posses "Backbone" whereas Vertebrate chordate have that. That's the only & most important difference between them.
Hope this helps!
A. Duplication is one of the different types of chromosomal mutations.
I believe it would be Bone Tissue and Connective Tissue