help 7-11 A ligation of the Okazaki fragments B removal of the RNA primer C. rem
ID: 274876 • Letter: H
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help 7-11
A ligation of the Okazaki fragments B removal of the RNA primer C. removal of base mismatches D. repair of deaminated bases 7 A piece nucleic acid is composed of 19 Thymines, 24 Guanines, 22 Cytosines and 10 Adenines. This stretch of nucleic acid is most likely A. Double Stranded DNA B. Double Stranded RNA C. Single Stra. nded DNA D. Single Stranded RNA 8. A drug is found to target DNA Polymerase III. Which of the following cell types would be unaffected by this drug? A. red blood cells B. skin epithelial cells C. gut epithelial cells D. spermatogonia 9. The experiments of Meselson and Stahl demonstrated the semiconservative mechanism of DNA replication by showing that when 15N-loaded DNA replicates in the presence of 14N A. the new strand of a replicated DNA molecule contains equal amounts of 15N and 14N B. after one round of DNA replication, one strand of the DNA molecule contains only i. 14N and the other contains only 15N C. after several rounds of DNA replication, all of the DNA was converted from to the 'LH' form D. after many rounds of replication, half of DNA has the 'HH density and half the HH has the LL'density 10.A nucleosome consists of A. one of each of the 5 types (H1-H4) of histone proteins B. a cluster of histone proteins that are wrapped around the DNA double helix length DNA double C. the DNA polymerase complex and the Okazaki fragments of 200 bases in D. two peptides each of histones H2A, H2B, H3 and H4, wrapped by the helix. 11. Much of the DNA in a eukaryotic genome is "non-coding", i.e., it does not carry genetic code for protein synthesis. Non-coding DNA would be found in all of the following locations, EXCEPT A. in between genes B. in repetitive DNAExplanation / Answer
Ans- single stranded DNA
Adenine binds with thymine and guanine binds with cytosine. For making double stranded the number of adenine should be equal to the thymine and number of guanine equal to the number of cytosine. Whereas RNA contain adenine, guanine cytosine and uracil in place of thymine. So answer must be option C.
Ans- A-RBCs
RBCs is anucleated which it doesn't contain any genetic material so that it would be unaffected by drug.
Ans-9-B after one round of DNA replication, one strand of the DNA molecule contain 14N and 15N.
Meselson and stahl using 15N labeled ecoli grown in medium containing 14N demonstrated that DNA replication semi conservative in prokaryotes and each new DNA molecule consists of one old strand and one newly synthesised strand.
Ans-10-C
A nucleosom core particle consists of a histone octamer pairs of each of four histone protein H2A, H2B,H3 andH4 and double stranded DNA.
-11 incomplete question
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