An Introduction to Molecular Biology/Quiz time

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

kaushlendra tripathi