Genetic inheritance is based on what type of molecule?
A) Proteins B) DNA C) mRNA D) Enzymes
B
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Which of the following substances that are carried in blood can not diffuse across endothelial cells of a capillary?
a. carbon dioxide b. proteins c. small lipid-soluble molecules d. oxygen
When a virus infects a bacterial cell, often new viruses are assembled and released when the host bacterial cell is lysed. If these new viruses go on to infect new bacterial cells the host cells may not be lysed
What is the most plausible explanation for this? A) The bacterial cell must be resistant to infection by the virus. B) The virus carries genes that confer resistance to the host bacterial cell. C) The host bacterium couples the viral infection with transformation. D) The virus has entered the genome of the bacterial cell and is in the lysogenic stage.
Binocular vision is an adaptation found in many animals that benefit from good depth perception
Indicate whether the statement is true or false
Modern biologists use the term chromosome to describe _____.
A) a cell's DNA when it's physically located within the nucleus B) DNA when its two strands have separated from each other C) the DNA when visible with a microscope inside a dividing cell D) double-stranded DNA and its protein complement, irrespective of its form E) the DNA when it's dispersed and functioning within the nucleus