Which of the following statements is incorrect regarding DNA and RNA?DNA is double stranded, and RNA is a single strand.They each contain a slightly different sugar molecule.One of the bases is different.All of the above are correct.

Which of the following statements is false concerning RNA?ANSWERIn RNA, the nitrogen base thymine is replaced by uracil.Ribonucleotides found in RNA include the same sugar deoxyribose that is found in DNA.RNA is a single-stranded molecule.Cells make numerous types of RNA.

10. Which of the following is not a difference between RNA and DNA?a. RNA has uracil; DNA has thymine.b. RNA has ribose; DNA has deoxyribose.c. RNA has five bases; DNA has four.d. RNA is a single polynucleotide strand; DNA is a double strand.e. RNA is relatively smaller than human chromosomal DNA.

Which of the following statements about DNA is incorrect?ANSWERThe alternating sugars and phosphate molecules of the DNA backbone bond together via phosphodiester bonds.DNA is a long, single-stranded molecule that curves into a helix, and the set pairings of the bases ensure that there is always a purine across from another purine and a pyrimidine across from another pyrimidine.The nitrogen base adenine always pairs with thymine, and guanine always pairs with cytosine.DNA has an antiparallel arrangement.

How are DNA and RNA different?In living cells, RNA is usually a double-stranded molecule, while DNA can often be single-stranded.DNA contains phosphate, while RNA does not.DNA contains the sugar dextrose, while RNA contains the sugar ribose.DNA contains the bases A, G, C, and T; RNA contains the bases A, G, C, and U.

Which of the following statements about bases are true?Each base pair is a geneBases are small moleculesHuman DNA contains four types of baseAny combination of bases can form a base pair