« previous next »

Author Question: Most molecular biologists think that viruses originated from fragments of cellul (Read 926 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Jul 2, 2013
Most molecular biologists think that viruses originated from fragments of cellular nucleic acid. Which of the following observations supports this theory?
A) Viruses contain either DNA or RNA.
B) Viruses are enclosed in protein capsids rather than plasma membranes.
C) Viruses can reproduce only inside host cells.
D) Viruses can infect both prokaryotic and eukaryotic cells.
E) Viral genomes are usually similar to the genome of the host cell.


ricki

  • Full Member
  • ***
  • Posts: 200
Reply #1 on: Jul 2, 2013
Hey dude, go with E. I got it right.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

geoffrey

  • Hero Member
  • *****
  • Posts: 880
Reply #2 on: Jul 14, 2013
Thanks sir, correct as always


« previous next »
 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

There are more bacteria in your mouth than there are people in the world.

A molecular clock. A molecular clock.
Percutaneous ultrasonic lithotripsy. A nephroscope is inserted into the renal pelvis, and ultrasound Percutaneous ultrasonic lithotripsy. A nephroscope is inserted into the renal pelvis, and ultrasound
Basic molecular mechanisms of delayed-type hypersensitivity. Basic molecular mechanisms of delayed-type hypersensitivity.
Molecular tree of life Molecular tree of life
Gel showing separation of DNA fragments Gel showing separation of DNA fragments
Pi molecular orbital system of PLP-amino acid Schiff base Pi molecular orbital system of PLP-amino acid Schiff base
Video: Hormonal regulation of blood pressure - RAA system

For a complete list of videos, visit our video library