2000MT2

2000MT2 - Biology 115, Midterm #2 Name:_ Midterm #2...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology 115, Midterm #2 Name:___________________________ 1 Midterm #2 Instructions: Write your name in ink at the top of all 8 pages of this exam. Do not write on the back of pages. Restrict your answers to the space provided. Excessive or ambiguous answers will count against you when assigning partial credit. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Answer the following questions with "true" or "false". Provide your reasoning for each "false" answer. Correct "true" answers are worth one point. Correct "false" answers with appropriate reasoning are worth 3 points. 1. Heterochromatin, which can be visualized as light staining material using Giemsa, generally represents transcriptionally active portions of the genome. 2. Karyotype analysis allows detection of gross chromosomal abnormalities. 3. The yeast Snf/Swi complex, like other chromatin remodeling machines, use the energy of ATP hydrolysis to "remodel" the pattern of post-translational modifications on histone tails. 4. Introns got their name because the carry the in formation that codes for a protein.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Biology 115, Midterm #2 Name:___________________________ 2 5. The "RNA world" theory states that RNA was likely the first self-replicating biological molecule because RNA is extraordinarily stable and thus was less likely to be degraded in the harsh environment of the early earth. 6. Although group II introns and pre-mRNAs are spliced via very similar mechanisms, these splicing pathways differ in that pre-mRNA splicing is ATP dependent. 7. Although larger and more complex than yeast kinetochores, human kinetochores seem to be composed of proteins that show many sequence and structural similarities to those found at yeast kinetochores. 8. The centromeres of many eukaryotes are composed of hundreds of kilobases of repetitive DNA sequences. 9. There is good evidence that RNA catalyzes the peptidyl transferase reaction of protein translation.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

2000MT2 - Biology 115, Midterm #2 Name:_ Midterm #2...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online