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LSU Bio 1201 Final Exam Pomarico Questions and Answers
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LSU Bio 1201 Final Exam Pomarico Questions and Answers
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LSU Bio 1201 Final Exam PomaricoQuestions and Answers
Which four elements make up 90% of life? - Answers -C, H, N, O
Does DNA have uracil or thymine? - Answers -Thymine
What is a macromolecule? - Answers -Molecule made up of polymers
What are the complementary base pairs in DNA - Answers -A-T, G-C
Which of the following are not pyrimidines?
T, C, U, A, G - Answers -A, G
What causes an element to become an isotope? - Answers -Change in # of neutrons
What is an enantiomer? - Answers -Two molecules that are mirror images of each other
What characteristic is specific of tertiary structure? - Answers -Interactions with side
chains
What is a hydrogen bond? - Answers -A bond between a hydrogen with a partial
positive & partial negative charge atom (usually oxygen and nitrogen)
Spider walking on water is a result of - Answers -Surface tension; cohesion
Which of the following would most likely have a polar bond?
CH, CO, OO, CN, NH - Answers -CO and NH
Products of cellular respiration - Answers -CO2, water, energy
Nondisjunction in meiosis II= - Answers -half of gametes are abnormal. Of abnormal,
n+1 or n-1
One extra copy or missing copy of a chromosome - Answers -Aneuoloidy
• trisomy - 2N + 1
• monosomy - 2N - 1
Extra set of chromosomes - Answers -Polyploidy
• triploidy - 3N
• tetraploidy - 4N
, Griffith found that genetic material could be transferred between bacteria, also known as
- Answers -transformation
Virus that infects bacteria - Answers -phage
Found that DNA is the genetic materian - Answers -Hershey and Chase
Chargaff's Rule - Answers -% A = % T
%C=%G
Discovered that DNA strands are made of a double helix structure - Answers -Watson
and Crick
What is the most important product of anaerobic respiration? - Answers -Regeneration
of NAD+
What happens to Co2 in the Calvin Benson cycle? - Answers -Fixation/reduction;
incorporation into sugar molecules
Where does the most energy production occur in cellular respiration? - Answers -
Oxidative phosphorylation
What are the properties of a proton compared to neutrons and electrons? - Answers -
Heavy, positive
Which molecules can cross the membrane the easiest? - Answers -Nonpolar, small
Which isomer has a carbon-carbon double bond? - Answers -Geometric/cis trans
Why is carbon the most versatile organic element? - Answers -Ability to make 4 bonds
Which type of group would a hydroxyl group most likely bond to? - Answers -Polar
Which organelle synthesizes proteins? - Answers -Rough ER
Which organelle prevents future damage from happening? - Answers -Lysosome
What to cellulose, glycogen, and starch have in common? - Answers -All derived from
glucose
Which property of water is the reason for many of water's other properties? - Answers -
Hydrogen bonding
In DNA structure, what makes up the lateral movement of the structure but not the "stair
steps"? - Answers -Phosphate group + sugar
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