HW_Ch 12 - HW: Ch 12 MCQ: 1) Which of the following is true...

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

View Full Document Right Arrow Icon
HW: Ch 12 MCQ: 1) Which of the following is true about the structure of DNA? A. Purine and pyrimidine bases are attached to the 1'-carbon of the deoxyribose sugars. B. Purine and pyrimidine bases are joined by phosphodiester bonds. C. Adjacent bases are stacked on top of each other, one base pair every 0.34 nm. D. all of the choices 2) Which of the following nitrogenous bases is usually found in RNA but not in DNA? A. adenine B. thymine C. uracil D. guanine 3) During replication the 2 strands of the DNA molecule are unwound from one another by enzymes called A. ligases. B. unwindases. C. helicases. D. primases.
Background image of page 1

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

View Full DocumentRight Arrow Icon
4) The transcribed, but not translated, sequence that is immediately upstream of the region and encodes the functional product is called the __________ region. A. leader B. promoter C. coding D. trailer 5) Posttranscriptional modifications that yield eukaryotic mRNAs include which of the following? A. splicing to remove introns
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 / 4

HW_Ch 12 - HW: Ch 12 MCQ: 1) Which of the following is true...

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