Topics: DNA Quiz
A defective protein can be produced by a cell when a mutation has which of the following effects?
A. Messenger RNA is prevented from being made.
B. It causes cells to divide in an uneven way.
C. An additional mRNA strand is caused to form.
D. The amino acid sequence coded by the gene is altered.
Select your answer:
Topics:
Hormones Skin Structure, Growth & Nutrition Life Processes Teeth & Microbes Chemistry Purpose and Function of the Skeletal System Heart Nutrition Safety Terms Infectious Disease Digestive System (Gastroenterology) Immunity in Humans Breathing System Transport System BodyOther quiz:
Medical Terminology › ViewWhich of the following would describe this picture?
A. Erythro
B. Alb
C. Cyano
D. Hemo
Enzymes and Digestion › View
What is the purpose of the ‘lock and key theory’ in explaining enzyme action?
A. To demonstrate the role of amylase in starch digestion
B. To illustrate the breakdown of lipids by lipases
C. To explain the production of bile in the liver
D. To describe the shape of enzyme molecules