The diagram shows a section of dna what is the arrow labeled explain to not sure if it's a

X is thymine

Explanation: A DNA is an acronym for Deoxyribonucleic acid. DNA is a biological molecule that is composed of two complimentary chains of nucleotide sequence that coil around each other to form a double helical structure. A nucleotide is made up of a sugar molecule, a phosphate group and a nitrogenous base. The nucleotides in DNA are composed of four types of bases: adenine (A), guanine (G), thymine(T) and cytosine (C). In DNA base pairing, adenine pairs with thymine, while guanine pairs with cytosine

make   gliitsh plesea   !

about 40,000,000 results (0.81 seconds)  

search results

what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.