Study the following and choose the correct statements.
• Cumulative effect of two or more genes on a single phenotypic trait is known as polygenic inheritance.
• Karyotype of Turner syndrome is AA+XXY.
• The longest gene codes for the muscle protein dystrophin.
• Highest number of genes are located in 21st chromosome.
Show Hint
Remember:
\[
\boxed{
\begin{aligned}
&\text{Polygenic inheritance} &&\rightarrow \text{Many genes control one trait}
&\text{Turner syndrome} &&\rightarrow 45,X
&\text{Longest human gene} &&\rightarrow \text{Dystrophin}
&\text{Chromosome 21} &&\rightarrow \text{Fewest genes}
\end{aligned}
}
\]