Draw a picture of a standard gene and label 3 kinds of cis-factors (core, proximal, distal) and 2 kinds of trans-factors (general and regulatory).
Draw a picture of a standard gene and label 3 kinds of cis-factors (core, proximal, distal)...
What are “cis-regulatory elements,” “trans-regulatory factors,” “exons,” “introns,” “untranslated regions,” “proximal promoters,” “enhancers,” “repressors,” "activators,” “caps,” and “poly-A tails”? Which are protein coding sequence (or are actual proteins); which are not? Which make it into mature mRNA?
1. Gene regulatory elements are a) trans-acting transcription factors b) cis-acting transcription factors c) trans-acting DNA sequences d) cis-acting DNA sequences 2. The unwinding of DNA during the initiation of transcription is mediated by the helicase activity by: a) TFIID b) TFIIH c) TFIIF d) TFIIE
6. Draw and label a typical gene including the following: a. 5’ and 3’ ends b. core and proximal promoters c. protein coding region d. 5’ and 3’ UTR e. 2 Introns and 3 exons
2. Draw the structures of the cis-trans isomers for each compound. Label them cis and trans. If no cis-trans isomers exist, write none. a. 2,3-dimethyl-2-pentene b. 1,1-dimethyl-2-ethylcyclopropane c. 1,2-dimethylcyclohexane d. 5-methyl-2-hexene e. 1,2,3-trimethylcyclopropane
draw the cis and trans isomers of 2-pntane and label them. b. draw trans -4,4 dimethyl-2-pentane c. draw cis -2- hexane
7. Draw and label both cis and trans isomers of 1-ethyl-4-methylcyclohexane. (10 pt) a. For each isomer, draw the two possible chairs and indicate which of the two will be preferred and by how much (a lot or little). (5 pt) b. Which of the four is considered the most stable (label as "best") and which is least stable ("worst")? (3 pt) c. Clearly label 1,3-diaxial interactions, if present, in any of the conformations? (2 pt) Cis Trans
1. Name the molecules shown below Br Br 2. Draw and label both the cis and trans forms of 1-isopropyl-2-methylcyclobutane.
Draw and label (cis/trans, fac/mer, linkage, optical, etc.) all unique isomers of the following coordination compound(s): b. [Pt(NH3)2(SCN)(Br)]
Please answer
Draw the following complexes, label (cis- and trans and fac- and mer-] A Dibromo chloro diethylenetriamminerhenium (I). (5 isomers) B) Naz [Ru (ox)] (2 isomers) () Bis (bpy) Rh (II)-M-Oxo-M- hydrado-bis(en) Ir (III) D) Diammine dichloroplatinum (II) (2 isomers)
4th
сутеплите. 3. Build the models and draw the cis and trans isomers of the following compounds. (c) 1-ethyl-3-methylcyclohexane 1,3-dimethylcyclopentane 1,2-dimethylcyclobutane 4. Build the cyclopropane ring and find the source of angle strain and torsional strain in the ring. Draw the relevant structures to explain these factors.