Q: What nucleic acid stores the genetic information? Read this paragraph and choose the correct option from the provided answers: Nucleic acids are large polymers formed by linking nucleotides together and are found in every cell. Deoxyribonucleic acid (DNA) is the nucleic acid that stores genetic information. If all the DNA in a typical mammalian cell were stretched out end to end, it would extend more than 2 m. Ribonucleic acid (RNA) is the nucleic acid responsible for using the genetic information encoded in DNA to produce the thousands of proteins found in living organisms. Choices: - Nucleus - Ribosomes - molecule - dna A:
dna

Q: What type of coal deposits are the most extensive ever formed? Read this paragraph and choose the correct option from the provided answers: Choices: - precambrian - mesozoic - jurassic - carboniferous A:
carboniferous

Q: Which region of dna consists of one or more genes that encode the proteins needed for a specific function? Read this paragraph and choose the correct option from the provided answers: Regulation of transcription in prokaryotes typically involves operons. An operon is a region of DNA that consists of one or more genes that encode the proteins needed for a specific function. The operon also includes a promoter and an operator. The operator is a region of the operon where regulatory proteins bind. It is located near the promoter and helps regulate transcription of the operon genes. Choices: - mRNA - chromosome - antigen - operon A:
operon

Q: What type of organisms do not need blood? Read this paragraph and choose the correct option from the provided answers: Single-celled organisms do not need blood. They obtain nutrients directly from and excrete wastes directly into their environment. The human organism cannot do that. Our large, complex bodies need blood to deliver nutrients to and remove wastes from our trillions of cells. The heart pumps blood throughout the body in a network of blood vessels. Together, these three componentsblood, heart, and vesselsmakes up the cardiovascular system. This chapter focuses on the medium of transport: blood. Choices: - cold-blooded - vertebrate - marine - single-celled A:
single-celled