Genetics Questions

MCQwhich of the following are arranged in the correct order by size, from largest to smallest:a. chromosome-gene-codon-nucleotideb. nucleotide-chromosome-gene-codonc. codon-chromosome-gene-nucleotided. gene-chromosome-codon-nucleotidee. chromosome-gene-nucleotide-codon

MCQwhich of the following is NOT needed for DNA replication:a. ribosomesb. DNAc. nucleotidesd. enzymese. all the above are needed

MCQa gene is: a. the same thing as a chromosomeb. the information for making a polypeptide c. made of RNAd. made by a ribosomee. made of protein

MCQDNA replication occurs:a. whenever a cell makes proteinsb. the repair gene damage caused by mutationc. before the cell divides d. whenever a cell needs RNAe. in the cytoplasm of a eukaryotic cell

MCQwhich of the following processes occur(s) in the cytoplasm of a eukaryotic cell:a. DNA replicationb. translationc. transcription d. DNA replication and translatione. translation and transcription

MCQduring the process of translation (polypeptide synthesis), _____ matches a nucleic acid codon with the proper amino acid:a. a ribosomeb. DNA polymerasec. ATPd. transfer RNAe. messenger RNA

MCQ a mutagen is: a. a gene that has been altered by a mutationb. something that causes a mutationc. an organism that has been changed by a mutationd. the portion of a chromosome altered by a mutatione. any change in the nucleotide sequence of DNA

MCQthe information carried by a DNA molecule isin:a. its amino acid sequenceb. the sugars and phosphate forming its backbonec. the order of the bases in the moleculed. the total number of nucleotides it contains e. the RNA units that make up the molecule

MCQbeadle and tatum showed that each kind of mutant bread mold lacked a specific enzyme. this experiment demonstrated that:a. genes carry information for making proteinsb. mutations are changes in genetic informationc. genes are made of DNAd. enzymes are required to repair damaged DNA informatione. cells need specific enzymes in order to function

MCQ in an important experiment, bacteriophages were allowed to infect bacteria. in the first trial, the phages used contained radioactive DNA, and radioactivity was detected in the bacteria. next, other phages containing radioactive protein were allowed to infect bacteria, and no radioactivity was detected in the bacteria. when the experimenters compared the results of these two trials, they concluded that:a. genes are made of DNAb. bacteriophages can infect bacteriac. DNA is made of nucleotidesd. genes carry information for making proteinse. genes are on chromosomes

MCQan RNA or DNA molecule is a polymer made of subunits called:a. basesb. amino acidsc. nucleotides d. nucleic acidse. pyrimidines

In eukaryotes, the structure of the _________ separates the initiator from other mets

Translation Initiation in bacteria_____= initiator factor - ___________ that will help regulate translation start

bacteriaTranslation Initiation1. ___________ ribosomal subunit + ___RNA2. _____'-AUG codon3. fMet-tRNA ^fMet (____________, used to recognize start codon) attaches to _____' end4. _____________ factors

Translation Initiation in bacteria______ brings in initiator tRNA (Met-tRNA^fMet)

To modify the Cas9 system in order to inhibit gene expression, you have to fuse on a _____________ domain that will prevent binding by RNA ____________. The dCas9 domain will target to a specific region, and the _____________ domain will prevent _________________, thus selectively reducing gene expression

The energy to create a peptide bond is stored in ________ bond, positioned by ___________ and peptidyl transferase

_______-bound EF-G binds __________________ in A site

___________ structurally resembles EF-Tu bound to tRNA

___________ forces the translocation step during elongation by fitting in _____ site