A gene is a segment of a _ & is made of _. Each gene codes for the production of one _ & each protein determines one _. Every 3 _ is called a codon and codes for a different _ acid. A string of amino acids make a _.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

What is a metal replacement reaction

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled