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composition in the second ( nucleotide that makes up DNA, and is known as aln) s

ID: 253252 • Letter: C

Question

composition in the second ( nucleotide that makes up DNA, and is known as aln) strand of DNA. This structural unit is an important component of et parallel) that nal selond (anti partelingnit in dne strand of the DNA that is hydrogen bonded to a unis A. amino acid unit. C. phosphate molecule D. dexoyribose sugar E. ribose sugar 23. DNA replication results in: A. the formation of a double stranded DNA molecule that contains one newly synthes one template strand B. the formation of a double stranded DNA molecule that contains two newly C. the formation of a single-stranded DNA molecule by conservative replication of the synthesized strands. the synthesized strand. D. formation of a single-stranded DNA molecule that contains one newly one newly synthe E. none of the above statements is true. 24. Which one of the following terms does not belong with the other four? A. thymine B. adenine C. cytosine D. alanine E.uracil 25. Our chromosomal DNA contains many different genes that are transcribed into: A. proteins. B. messenger RNAs C. homologous chromosomes. D. sister chromatids. E. introns. 26, The average thymine content of Norwegian Blue Parrot DNA is 30%. The percentage of guanine in Norwegian Blue Parrot DNA is: deu A, 20% B.25% C. 30% D, 40% E. The amount cannot be determined from the information that is givern 27. The relationship between a strand of messenger RNA and the DNA from which it is transcribed is best described as: A. antagonistic B. identical, except that a U in DNA is replaced by a T in the messenger RNA. D. unrelated E. an exact duplicate. 28. The synthesis of an RNA molecule from a DNA template strand is known as: A. replication. C. transcription. D. DNA synthesis. E. metabolism. 29. The replacement of a single nucleotide by another nucleotide in a coding region of DNA is called a(n) A. frame-shift mutation. B. thymine dimer. C. transposable element D. point mutation E. inversion

Explanation / Answer

22- nitrogenous base

23 formation of double stranded dna with one newly synthesized dna and one template strand.

24-alanine

25- messenger rna

Note- the dna replication process form newly synthesized dna where both template strand forms the newly synthesized strand along with it . And thus forming two double strands from one double strand dna.