- Tutorial: DNA & RNA l)NA | , RNA', F!..i42 4.Coding regions lhat affect the same trail a.e called A homologues. B alleles. C loci. D gametes. E aulosomes 5. lf a cell v/ere urab,e ro p'oJ*cs rrrsrcnp prore nS ilh.cn of tr e follow ng wo- o Le e,.pecle o to ox-.1 A. The DNA in the cell could not be packed nio iis nucleu$. B Amplication of other genes would compensaie for lack of hision es C. Pseudogeres would b6 transcribe d to compensate ior iire ciecreased protein in cell. D. There would be an increased in ihe amount of satelliie DNA prcduced during centdfugalion. E. Spindle fibers would notiorm during prophaso. 'l.Which ol rh. lollowing descriFiions beEi fits tho class ol moleeutes known as nucleotid6s? A A n;trogenous brsc rnd a phosphrtc group B A niirogenous base and a periose sugat C a ritrogcnous base, a phosphale group, and a pentose sugar D a phosphate group, and an adefiine or uG.il E a pehlosc sugar and a pu.ine gr pyaim:dine 2.lf the codon consisl ed of only two nucleotides . rhers would be how mehy differeht kinds ol codons? A4 B8 a3? E54 3. lf the aNA lritlet€ wsre ATG-CGT, tho IRNA anticodons would b€ A AUGCGU B UACGGA C ATGCCU D ATGCGT E TGCCTA 6. A doubie.st.arded Di\A noleci e corta:ns a total ci '50 pLnles ano 150 pyririoines -l's DNA rclecJ e coLlJ oe co1"p'.sed of A 300 adenine and 300 cyiosine B 150 guanine and 150 thymine C 150 thymine and 150 adenine D 300 cytosine and 300 thymine E 150 adenine and 150 uracil 7.V"/liclr of the rollow.ng stalenents about 5'end or a po yrucleotroe slrand lt corr6cfr A The s'end has a hydroxyl group. B tha s'end has a phosphate group. C The s'end is ideniical to the 3'end. D lhe s'end is antiparallel io the 3'end. E The 5'end is the fifth position on one of the nitiogenous basas. S.Which of the following are niirogenous bases of the punne type? A guanine and aden;n€ B cytosine and urscil C ribose and deoxy.ibose I thymine and uracil E adenine and cyioiine Llhe'e are 61 mRNA colons trrat sDectfv an am.no ac d cLt on.v 45 tRNAs.This rs oest expla.neo by the"fa:.r:nar I lVany cooo|s are neve. used. sc t1e IR'iAs lhat lecogr ze U er are dispensable ll some tRi{As have anUcodcns that iecognlze two or Hore differenl cdons lli the rules ior oase airi-0 bet\,"ed rne th j oese J'i ao:Jt a ro tRNA efe flexlble A I only B ill only C I and lll only D ll and lll only E l, 1l and ill 1 '10. What is the form of RNA carriss the code fro.n the DNA io the site where the prctein is assembled? A messenger RNA B ribosomal RNA C structural RNA D transf€r RI.,JA E nuclear RNA 1'1 They are how many kinds of RNA codons? A3 B4 D64 - 120
