How do genomes of species change?
a. By mutations in DNA.
b. When individuals are exposed to a new habitat.
c. Through extinction.
d. They don't.
Ans: a. By mutations in DNA.
You might also like to view...
Biosafety Level 1 agents:
a. include those that are the common agents of an infectious disease. b. require only standard good laboratory techniques. c. include Mycobacterium tuberculosis, M. gordonae, and Brucella. d. require the use of maximum containment facilities.
Which of the following is mismatched?
a. stamen - anther b. carpel - ovary c. carpel - stigma d. petal - filament e. carpel - style
In some situations, the death rate of a population declines before the birth rate begins to decline. What can be concluded about the population?
A) The carrying capacity is being reached. B) The population is in a demographic transition. C) A density-dependent factor is in action. D) The population occurs in an industrialized nation.
When glucose levels are high in the body, insulin causes the excess glucose to be converted into glycogen. When glucose levels are low, the hormone glucagon causes the conversion of glycogen back to glucose. This process is known as:
A) Krebs cycle reaction B) Gluconeogenesis C) Glycogenolysis D) Glucogenesis