The operator is the side of the DNA where ---- binds 1. Repressor 2. DNA polymerase 3. Ribosome  4.transcription factor 5. RNA polymerase

1. For each of the items below, give a brief description (indicate function for enzymes) and indicate in which process (replication, transcription, or translation) it is involved with. helicase Description/Funetion catalyzes the unwinding of DNA strands Process involved in replication 11. terminator 12. ribosome 13. amino-acyl RNA site 14. MRNA 15. tRNA 16. rRNA 17. Shine-Dalgarno sequence 18. start codon 19. Okazaki fragments 20. coding strand 21. peptidyl tRNA site

In Rho-independent termination of transcription (does NOT need the Rho protein), why does the mRNA fall off" of the template DNA?"Question 16 options: because the polymerase pauses over an AT-rich region of DNA because a helicase protein disrupts the H-bonds in the RNA:DNA hybrid because a stem-loop in the mRNA changes the conformation of the NusA protein because a stop codon is reached

Which RNA polymerase produces the larger ribosomal RNAs?1. RNA polymerase 2 2. RNA polymerase 3 3. rNA polymerase 1 4. RNA polymerase 1 & 2

In eukaryotes, why is less DNA transcribed the more it is compacted

1)  Where in the heck did Class I transposons originate?   a DNA mutations. b Bacteria. c Prophages. d Retroviruses.   2)  What do you think about humans only having about 22,500 genes but we contain about 100,000 proteins?!   a The production of quaternary shape in proteins can contribute to protein variation. b That's the work of the spliceosome! c Post-translation modifications in the Golgi Apparatus are responsible for some of that. d All the answers are correct.

Plasmids usually contain a gene for to a make make it easy to grow only colonies of bacteria that have acquired the plasmid. antibiotic resistance O lactose intolerance color O apoptosis

(1) Give 3 differences between DNA and RNA (2) Give 2 similarities and 2 differences between transcription and replication (3) A DNA strand is 5' TAC ACG GTC TAA3' Write the RNA strand that could be made from the DNA strand. Indicate the 5' and 3' ends For each of the following, say whether they are DNA or protein Enhancer Transcription Factor Promoter RNA polymerase

Which of the following statements about DNA strands is true? (You may choose more than one.) Group of answer choices Some genes are transcribed from the template strand, others are transcribed from the non-template strand The promoter determines which strand is the (-) strand The promoter determines which strand is the template strand The template strand is always the (-) strand Some genes are transcribed from the (-) strand, others are transcribed from the (+) strand Some proteins are translated from the - strand and some proteins are translated from the + strand