it's b. anaphase and spindle fibres pulls chromosomes towards the centrioles in this phase.
Like DNA, RNA is made up of nucleotides. There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
The cells of the CNS are called neurons. They secrete neurotransmitters.
A. The liquid particles move slower
I think the correct answer from the choices listed above is option D. Venter's contribution to science is the invention of a synthetic cell. Craig Venter and his team have built the genome of a bacterium from scratch and incorporated it into a cell to make what they call the world's first synthetic life form.
