A hypothesis is:
a. a tentative explanation.
b. a systematic thought process.
c. an observation.
d. a placebo.
e. a conclusion.
A
You might also like to view...
Bacteria methylate their DNA in order to:
a. prepare for DNA replication. b. prepare for mitosis. c. effectively infect other cells. d. protect it from restriction enzymes. e. prevent viral DNA from hybridizing with bacterial DNA.
The outer membrane of the nuclear envelope is continuous with the membrane of the ____ and is usually covered with
attached ribosomes. a. nucleolus b. cell wall c. chromatin d. plasma membrane e. endoplasmic reticulum
What does the EPAS1 gene do (note - there are many other functions aside from the ones discussed in lecture, but we are focused on what was covered in class), and which group of people possess a unique allele of it that increases their environmental fitness?
A. It helps the digestive system to break down carbs more efficiently, and people of Southwestern French descent in the Bordeaux region tend to have a unique allele of it. B. It causes your fingers to get extra pruney when wet which increases grip for slippery environments, and people of Polynesian descent tend to have a unique allele of it. C. It improves oxygen transportation, and people of Tibetan descent tend to have a unique allele of it. D. It alters the reflective properties of eyes to counteract snowblindness, and people of Scandinavian descent tend to have a unique allele of it.
How did scientists obtain a gene that can make papaya plants resistant to a new papaya root fungus?
a. They synthesized a new gene by assembling a unique combination of amino acids. b. They found a root-fungus-resistant gene in grapes. c. They created the plant-root-resistant gene by combining genes from a tree and a type of algae. d. They removed a gene from the DNA of the root fungus.