Which statements are correct concerning human DNA?

a. It contains 23 chromosomes

b. It contains 46 chromosomes

c. Each strand contains chromosomes from one parent.

d. Each chromosome contains 23 genes.

What is true concerning a lysogenic viral replication cycle?

Magma that reaches earths surface and flows from volcanoes is what

Hemoglobin functions to transport ... ?

List controllable factors that increase the risk of cardiovascular disease.

Which two of the Sun's layers are often reversed in larger stars?

The most important function of the skin is

Select all that apply. Which of the following characteristics must an object possess in order to be considered alive?

Regarding regulation of the ara operon, what would be the effect of a mutation that removes the part of the AraC protein that binds to RNA Polymerase? a. Transcription would not occur at high levels in either the presence or absence of arabinose. b.

Cnidaria and flatworms exchange gases and remove wastes by way of their: A) open circulatory systems. B) closed circulatory systems. C) gastrovascular cavities. D) moist skin surfaces. E) respiratory and excretory systems.

Immunofluorescence microscopy A. Can be used to map the location of specific macromolecules in cells. B. Can be performed with a standard light microscope. C. Can yield resolution approaching that of the electron microscope. D.