Physically, the nuclear DNA molecule can be described as a:
A. single-stranded chain
B. double helix
C. two-dimensional ladder
D. sphere
B. double helix
You might also like to view...
All of the following about Au. garhi are true EXCEPT that it was
A. discovered in 1999 in Ethiopia. B. a previously undiscovered hominin that dated to 2.6–2.5 m.y.a. C. found along with the earliest evidence yet discovered of animal butchery. D. not likely to have had the capacity to use stone tools. E. found with the remains of antelopes and horses.
Since abundant remains of animal bones are found at their sites paleoanthropologists have described Neandertals as
a. successful hunters and therefore efficient mastodon hunters. b. successful small game hunters, but not necessarily as successful large game hunters as modern humans. c. never gathering shellfish. d. less prone to head and neck injuries. e. possessing long-distance weaponry.
Agriculturalists are more vulnerable to environmental changes, such as crop failures, and disease, than are horticulturalists
Indicate whether the statement is true or false
Apartheid was an ideology of white superiority in South Africa
a. True b. False Indicate whether the statement is true or false