Question

Which is a component of the modern cell theory that was not part of the original cell theory?
All organisms are made of cells.
All cells are similar in composition and metabolic activities.
All cells come from preexisting cells.
A cell is the basic unit of structure and function for all living things.

Red-green color blindness is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree.

A pedigree is shown. Sam, Bella, Joshua, and Tim have filled-in shapes. Lisa and Monica have half-filled shapes.

Which individuals in the pedigree are identified and labeled carriers for red-green color blindness?
Lisa and Monica
Sam, Tim, Bella, and Joshua
Ben, Jenny, Mike, Carol, Katie, and Chris
Ben and Lisa

During which stage of cellular respiration is glucose broken down into two molecules of pyruvic acid?
electron transport chain
glycolysis
Krebs cycle
acetyl CoA formation

During which process is ethanol produced?
lactic acid fermentation
alcohol fermentation
citric acid cycle
electron transport chain

Which is an advantage of producing genetically engineered crops that have pest-resistant genes?
bioaccumulation of pesticides
allows farmers to grow any crop they want
reduces the use of pesticides for certain insects
gene transfer to nontarget species

Answer 1

1) All cells come from preexisting cells.
Explanation: That component (cell division/biogenesis) was added later (Virchow) and is part of modern cell theory.

2) Lisa and Monica.
Explanation: Half-filled symbols denote carriers for an X-linked recessive trait.

3) Glycolysis.
Explanation: Glucose is split into two pyruvic acid molecules during glycolysis.

4) Alcohol fermentation.
Explanation: Ethanol is produced by alcohol (ethanolic) fermentation.

5) Reduces the use of pesticides for certain insects.
Explanation: Pest-resistant transgenic crops lower the need for external pesticide applications (reducing pesticide use).