STD 12 - 4. principal of inheritance and variation — NEET STD 11 Science — Question

 $\begin{array}{|p{0.3\linewidth}|l|} \hline Column-I   & Column-II  \\ \hline 1.\,\,Exoskeleton  & p.\;Thorax  \\ \hline 2.\,\,Three\,\,ganglion  & q.\;Chitin  \\ \hline 3.\,\,One\,\,pair\,\,of\,\,seminal\,\,vesicle & r.\;6^{th}-7^{th}\,\,segments\;\;of\;\;abdomen \\ \hline 4.\,\,Mushroom\,\,shaped  & s.\;6^{th}\,\,segments  \\ \hline \end{array}$

$I.$ It is controlled by multiple allele

$II.$ It shows codominance

$III.$ Codominance can be manifested phenotypically in human

$IV.$ It follows the Mendel law of inheritance

Which of the following statements (s) are correct?