There are 12 pairs of curved bones called X in our chest region. One end of bones X is joined to
backbone and their other end is joined to bone Y in
front to form a box-like structure Z. This strong box
like structure protects the delicate internal organs P and
Q.

What are X, Y and Z?
Name the organs P and Q

12345678910000000000WWEFGHBVCX

RGFVUSHIOuvsD

your answer is rna to the question.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation: