Gene regulation in eukaryotes
a. usually involves operons
b. is simpler than in prokaryotes.
c. allows for cell specialization.
d. includes the action of an operator region.
- specialized cells regulate the expression of genes because they
a. do not want the genes to become worn out.
b. cannot control the translation of proteins.
c. do not carry the complete genetic code in their nuclei.
d. do not need the proteins that are specified by certain genes.

(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?

The basic types of tissue in the human body are

What kinds of molecules can pass through the cell membrane without any problem?