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Transcription factors together with enzymes such as DNA topoisomerase and DNA helicase reach the gene of interest. These enzymes uncoil the DNA and revelea the two strands of DNA that are wrapped around h...

ATP, which stands for adenosine triphosphate, is a biomolecule formed by a purine base (adenine), a sugar molecule (ribose) and three phosphate groups. Its main function is to store energy within the cell...

Example response: En mi tiempo libre me gusta dibujar y ir al parque para jugar al fútbol con mis amigos. También me gusta mucho viajar porque me interesa visitar nuevos países.

Let's take an example of comparing and contrasting the consolidation of power of two different Communist leaders, Stalin and Mao Tse-tung. The answer should address both key components of the question equ...

The differences in the birds' beaks are due to evolution and natural selection. One island may have an abundance of seeds and nuts which require a large beak to crack them open, meaning that birds with a ...