3. Human males are at X-linked loci.

Could someone me with number one you

Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now

In the sentence "a mining company will consider the distribution of coal when deciding how to mine the coal," what does the word distribution mean?