Replication
Helicases are
a. enzymes b. proteins
c. carbohydrates
a. enzymes
What is the actual shape of a DNA molecule?
a. triple helix b. upside down spiral
c. double helix d. straight line
c. double helix
What does DNA store?
a. Genetic information
b. Proteins
c. Nucleic acid
d. Water
a. Genetic information
Mendel is now known for his research on..
a. Heredity
b. Photosynthesis
c. Protein Synthesis
d. None of the above
a. Heredity
Which scientist died before he/she was able to receive the Nobel Prize for Medicine in 1962?
a. James Watson
b. Rosalind Franklin
c. Francis Crick
d. All three scientists lived to receive the Nobel prize
b. Rosalind Franklin
What is the amount of nucleotide pairs for one mutation?
a. 1,000 b. 10,000
c. 100,000
b. 10,000
What is the sugar molecule that makes up part of a nucleotide?
a. deoxyribose b. sucrose
c. glucose d. galactose
a. deoxyribose
What does DNA stand for?
a. Dinosaur acid
b. Dow nucleic acid
c. Deoxyribonucleic acid
d. Acidic nucleotides
c. Deoxyribonucleic acid
Each characteristic observed in Mendels’ pea plants has two contrasting…
a. Sizes
b. Factors
c. Traits
d. Strains
c. Traits
_______ bonds are relatively weak bonds.
a. Covalent
b. Ionic
c. Helium
d. Hydrogen
d. hydrogen
The replication fork is caused by what?
a. Genes separating
b. Nucleotides separating
c. Lipids separating
b. nucleotides separating
The purpose of the nucleotides’ phosphate groups is…
a. To form hydrogen bonds with other phosphate groups
b. To separate the chains of DNA during replication
c. To determine the order that nitrogenous bases bond with each other in
d. To help form the backbones of the double helix
d. To help form the backbones of the double helix
Who discovered DNA?
a. Robert Hooke
b. Roles Vanderbelche
c. James Watson
d. John Kay
c. James Watson
Plants that are pure for a trait always produce offspring with that trait.
a. True
b. False
a. True
What was Maurice Wilkins best known for?
a. The discovery of the double helix through his and Rosalind Franklin’s x-ray photographs of DNA.
b. A model of a DNA strand showing the DNA’s spiral staircase appearance.
c. Both A and B
a. The discovery of the double helix through his and Rosalind Franklin’s x-ray photographs of DNA.
Covalent bonds are between deoxyribose sugars and ___________
a. protein Groups b. covalent groups
c. phosphate groups
c. phosphate groups
Which is true about a nucleotide?
a. The sugar and phosphate groups always stay the same
b. The sugar and the nitrogenous base always stay the same
c. The nitrogenous base and the phosphate group always stay the same
d. All three parts of a DNA nucleotide are prone to change
a. The sugar and phosphate groups always stay the same
How long would it be if all the DNA in your body was stretched out into a line?
a. 200m
b. 2m
c. 2,000m
d. 0.2m
b. 2m
The order of generations in Mendels’ experiments was...
a. F1, F2, P1
b. P1, F1, F2
c. F1, P1, F2
d. None of the above
b. P1, F1, F2
True or False: DNA replication starts at one point of a DNA strand and ends at the
other end of the strand.
a. True
b. False
b. False
DNA ______ bonds to be separated DNA creating new chains.
a. polymerases b. polypeptides
c. prep proteins
a. polymerases
What is the difference between a purine and a pyrimidine?
a. Purines have one ring of C and N, and pyrimidines have two rings of C and N.
b. Pyrimidines have one ring of C and N, and purines have two rings of O and N.
c. Pyrimidines have one ring of C and N, and purines have two rings of C and N.
d. Purines have two rings of H and P, and pyrimidines have three rings of H and P.
c. Pyrimidines have one ring of C and N, and purines have two rings of C and N.
How much DNA do we share with chimps?
a. 99%
b. 35%
c. 50%
d. 27%
a. 99%
Mendels’ two laws stated..
a. A lot
b. Law of segregation: a pair of factors is put together during the formation of gametes. Law of independent Assortment: factors for different characteristics are distributed to gametes together
c. Genotypes are the genetic makeup of an organism, and phenotypes are the appearance.
d. Law of segregation and law of independent assortment
e. Law of segregation: a pair of factors is segregated, or separated, during the formation of gametes. Law of independent Assortment: factors for different characteristics are distributed to gametes independently
e. Law of segregation: a pair of factors is segregated, or separated, during the formation of gametes. Law of independent Assortment: factors for different characteristics are distributed to gametes independently
How do scientists know which nitrogenous bases are paired with the correct
nitrogenous bases?
a. A and T are connected by 3 hydrogen bonds, G and C are connected by 2 hydrogen bonds.
b. C and G are connected by an ionic bond, A and T are connected by a hydrogen bond.
c. G and C are connected by two covalent bonds, T and A are connected by only one covalent bond.
d. A and T are connected by two hydrogen bonds, G and C are connected by three hydrogen bonds
d. A and T are connected by two hydrogen bonds, G and C are connected by three hydrogen bonds