« previous next »

Author Question: Why is the helical configuration of DNA important? a. Permits purines and pyrimidines to bond ... (Read 205 times)

james9437

  • Hero Member
  • *****
  • Posts: 568
on: Jun 25, 2018
Why is the helical configuration of DNA important?
 
  a. Permits purines and pyrimidines to bond
  b. Permits transcription of DNA by RNA polymerase
  c. Stabilizes the molecular structure
  d. Prevents occurrence of protein structural abnormalities (e.g., point mutations, translocations)

Question 2

What is a tumor-suppressing cellular protein that can sense early DNA damage?
 
  a. p53
  b. Transfer RNA
  c. Apoptosis protein
  d. RNA polymerase


covalentbond

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: C
The helical configuration of DNA, where the strands twist, stabilizes the DNA molecule and protects the bases from the environmental damage.

Answer to Question 2

ANS: A
The tumor-suppressing cellular protein that can sense early DNA damage is p53.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

james9437

  • Hero Member
  • *****
  • Posts: 568
Reply #2 on: Jun 25, 2018
Thank you


covalentbond

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jun 25, 2018
No problemo


« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Directionality of the hydrogen bond Directionality of the hydrogen bond
Hydrogen bond Hydrogen bond
Energy is released from the breaking of the phosphate bond in ATP when converting to ADP. Energy is released from the breaking of the phosphate bond in ATP when converting to ADP.
Catalysis of peptide bond hydrolysis by chymotrypsin (part 2) Catalysis of peptide bond hydrolysis by chymotrypsin (part 2)
Hydrogen bond Hydrogen bond
Peptide bond formation between two amino acids, resulting from a dehydration reaction Peptide bond formation between two amino acids, resulting from a dehydration reaction
Video: Kinetic parameters & Kinetic experiment

For a complete list of videos, visit our video library