An Introduction to Molecular Biology/Quiz time

Quiz No.1 {How does puromycin inhibit protein synthesis? |type="()"} + it binds to A site and stop the elongation. - it affect the peptidyl trasferase activity. - it degrades the t-rna. - it is responsible for loading termination codon {The shape of a DNA molecule is |type="()"} + Double helix. - triple helix. - no helix. - linear {Cytochrome C releases to cytoplasm during |type="()"} + Apoptosis. - Mitosis. - Meiosis. - Cytosis {What is the main reason for cyanide poisoning? |type="()"} + Inhibition of electron transport chain - Inhibition of Fatty acid transport chain. - Inhibition of Nucleic acid transport chain - Inhibition of Fatty acid metabolism {DNA replication takes place during |type="()"} - G1 - G2 - M + S phase {The term "Molecular biology" was first used by |type="()"} + Warren Weaver in 1938 -Warren Buffet -Watson and Crick -Gregor Mendel {RNAPII can exist in two forms |type="()"} -Protein and vitamin +RNAPII0, with a highly phosphorylated CTD, and RNAPIIA, with a nonphosphorylated CTD. -RNAP 1 and RNAP 2 -Protein and rna {Single letter code for Alanine is |type="()"} +A -B -C -D {Single letter code for Phenylalanine is |type="()"} -P -B -C +F {Single letter code for Tryptophan is |type="()"} -T -B -C +W {In DNA Adenine coupled with |type="()"} +T -G -C -W {DNA is a long polymer made from repeating units of |type="()"} +Nucleotides -Nucleosides -Nucleorides -Nucleophyte {Topoisomerases are enzymes with |type="()"} +both nuclease and ligase activity. -both polymerase and cutting activity -both transcription and ligase activity -both unwinding and polymerase activity {Who could not win the Nobel Prize in Physiology or Medicine for discovery of DNA structure |type="()"} +Franklin -Watson -Crick -Wilkins {Who is not associated with discovery of DNA structure |type="()"} +Linus Pauling -Watson -Crick -Wilkins {Single letter code for Selenocysteine is |type="()"} -P -B -C +U {Where will you keep collagen triple helix in ramchandran plot |type="()"} -Top right -Bottom right -Bottom left +Top left {t-RNA gene is synthesized by |type="()"} -RNA polymerase I -RNA polymerase II +RNA polymerase III -DNA polymerase III {Micro RNA was first discovered in |type="()"} -Yeast -Bacteria +C. elegans -Mouse {Micro RNA generally contain |type="()"} -22 KB nucleotide -22 thousand nucleotide +22 nucleotide -22 million nucleotide Quiz No.2 {Animal cell doesn't contain |type="()"} -mitochondria -nucleus +cell wall -chromosome {Ocher codon is |type="()"} -UAG -UGA +UAA -UUU { The term CDKs stands for |type="()"} -cyclin direct kinases -cyclin depen kinases +cyclin-dependent kinases -cyclin-dull kinases { In cell cycle term "cdc" stands for |type="()"} -cyclin direct cycle -cell dependent cycle +cell division cycle -cell-dull cycle {DNA is a double helix (if true then explain if false then explain) |type="()"} + TRUE. - FALSE. {m-RNA is a single stranded structure (if true then explain if false then explain) |type="()"} + TRUE. - FALSE. {Translation of protein generally occurs in the nucleus, (if true then why and if false then why) |type="()"} -TRUE. + FALSE. {tRNA appears like cloverleaf structure ( if true then why and if false then why) |type="()"} + TRUE. - FALSE. { The first topoisomerase was discovered in |type="()"} -Yeast -Human +E. coli -Mouse { The first topoisomerase was discovered by |type="()"} -James Watson -James Xang +James C. Wang -Crick {Dideoxynucleotide Chain-termination methods was discovered by |type="()"} -James Watson -James Xang +Frederick Sanger -Crick {PCR methods typically amplify DNA fragments of up to |type="()"} -10 bp -100 bp +10 kb -10 mb Note Dear Readers If you have problem regarding any question in quiz please let me know. Thanks with regards kaushlendra tripathi