Phospholipids

A. Structure of cell

membranes

B. insulation

C. energy

What components make up the backbone of DNA? a adenine & guanine b cytosine & thymine c phosphate & sugar d nitrogen base & sugar

20. What was the purpose of this reaction?

Inheritance of skin color in humans is dependent not only upon the melanin synthesis genes but also upon a number of other genes. What type of inheritance is exhibited in this case?

Evolution is always improving organisms to make them more perfect. select one: a. True b. False

What type of structure forms when a speleothem on the ceiling of a cavern meets with a speleothem on the floor of a cavern?

A scientist hypothesized that oxygen atoms from both carbon dioxide and water are used to make glucose during photosynthesis.

N an oil spill, why does the oil not mix with the sea water? Lipids are hydrophobic. Lipids are hydrophilic. Lipids are saturated. Lipids are unsaturated.

The site of photosynthesis is a. mitocondria b. chloroplast c. nucleus d. endoplasmic reticulum

List three examples of how genes can be manipulated.

Consider a disease allele that is both dominant and lethal to patients that possess it. how could such an allele be passed on from generation to generation