Create an account to track your scores
and create your own practice tests:
Test: GRE Subject Test: Biology
1. | Pick the reason that is least likely to explain why two purines will never be seen attached to each other in a DNA helix. |
The functional groups at the end of one purine would not correctly match with the other purine.
Purine bases will never be found on opposite DNA strands, so they do not have the ability to pair with one another.
The bulky two-ring structure of purines would cause too much hindrance in the inside of the helix.
Two purines could cause a bump in the DNA, causing problems with transcription and replication.
Michael
Certified Tutor
Certified Tutor
Saint Vincent College, Bachelor of Science, Biology, General. Pennsylvania State University-Main Campus, Doctor of Philosophy...
Amit Kumar
Certified Tutor
Certified Tutor
sanjay gandhi postgraduate medical science , Doctorate (PhD), Genetics molecular biology .
Popular Subjects
Math Tutors in Atlanta, LSAT Tutors in Denver, LSAT Tutors in Atlanta, Math Tutors in New York City, ACT Tutors in New York City, GRE Tutors in Dallas Fort Worth, GRE Tutors in Washington DC, Computer Science Tutors in Boston, Reading Tutors in Houston, Statistics Tutors in Atlanta
Popular Courses & Classes
SAT Courses & Classes in Houston, SAT Courses & Classes in San Diego, SSAT Courses & Classes in Dallas Fort Worth, GMAT Courses & Classes in Phoenix, ISEE Courses & Classes in Houston, ISEE Courses & Classes in Boston, GRE Courses & Classes in Washington DC, ISEE Courses & Classes in Seattle, SAT Courses & Classes in New York City, SAT Courses & Classes in Miami
Popular Test Prep
GMAT Test Prep in San Francisco-Bay Area, ISEE Test Prep in Philadelphia, SSAT Test Prep in Miami, MCAT Test Prep in New York City, LSAT Test Prep in Philadelphia, LSAT Test Prep in Denver, MCAT Test Prep in San Diego, ISEE Test Prep in Houston, ACT Test Prep in Atlanta, MCAT Test Prep in Philadelphia