When DNA is copied, sometimes a new, incorrect, base pairing appears within the structure of a new DNA molecule replacing original base pairs. This mistake is called a base-pair

a. deletion

b. institution

c. Substitution

Which of following selections lists bone cells in the order from unspecialized stem cell to highly specialized mature bone cell? a. osteoprogenitor cells, osteoclasts, osteocytes b. osteoclasts, osteoprogenitor cells, osteoblasts, osteocytes c.

Whats the upper surface of a saturated aquifer

Why are your chromosomes arranged in pairs? Select one: a. Because you get one from your mother and one from your father. b. Because DNA has a double helix structure. c. Because pairs are able to divide more easily. d. Scientists aren't sure.

Difine what aerobic and anaerobic process involves and identify the 3 stages of cellular respiration

What is measured with an electric balance Distance in centimeters Mass in grams Temperature in degrees Celsius

How do humans become murderers? What are some of the reasons that cause it?

Relate sexual reproduction to evolutionary forces

Where is the glandular swelling on the earthworm found?

A student has a hamburger, french fries, and soda for lunch. Which sequence represents the correct order of events in the nutritional processing of this food?

Explain why the fact that invasive species did not co-evolve with the native species unbalances an ecosystem.