In the structure of DNA, the "double helix" is composed of ________________.   Question 7 options:   two (2) chromosomes that are twisted around each other   two (2) strands of linked nucleotides that are twisted around each other   four (4) strands of linked nucleotides that are bound by phosphate groups   two (2) strands of linked nucleotides that fold back and forth like an accordion   four (4) strands of linked nucleotides that are bound by sugar groups

QUESTION 27 Microtubules are made of tubulin. When tubulin is bound to GTP, it has a higher affinity for other tubulin molecules, so microtubules grow. When tubulin is bound to GDP, the affinity is lower so microtubules shrink. We would say that tubulin is regulated by O Ubiquitylation O Phosphorylation O Small molecule binding O Protein-protein interactions

QUESTION 49 Consider the following double-stranded DNA region: TC CỦA T 3'-ACGGTA-5' If the lower strand is transcribed, which of the following strands will result? O a. TGCCAT O b. TCGGTA Oc. UGCCAU d. UGCCUA Oe. TCGGUT Click Save and Submit to save and submit. Click Save All Answers to save all anst

Question 5 DNA polymerase: |A Is able to open the helix at the origin of replication. B Works on both strands during replication. C Synthesizes phosphodiester bonds between the two strands of the DNA helix. D] Is an enzyme that recognizes the gene pro- moter. E Is responsible for the transcription.

Question 6 Describe in 4 steps the condensation of eukaryotic DNA to chromosomes. Describe each one briefly. Number your answers.

question #45 please

Question 7 The long solenoid structure of the chromatin material binds to a protein scaffold through the SARS or MARS in the DNA. A True B) False

Question 2 The width of the double helix is 3.4 nm. O True O False