Biology Exam Review - Genetics Question Preview (ID: 62704)


Genetics. TEACHERS: click here for quick copy question ID numbers.

What are the 3 parts of a nucleotide?
a) sugar, hydrogen bond, base
b) sugar, base, phosphate
c) hydrogen bond, glucose sugar, adenine
d) thymine, guanine, deoxyribose sugar

The purpose of transcription and translation is to...
a) make ribosomes
b) make proteins
c) make new cells
d) make DNA

The function of tRNA is to ______________________________.
a) synthesize DNA
b) synthesize mRNA
c) form ribosomes
d) transfer amino acids to ribosomes

Transcription is
a) making a protein from mRNA
b) making mRNA using DNA
c) making DNA from a fertilized egg
d) copying a cell

Where does transcription occur in the cell?
a) The cytoplasm
b) The ribosome
c) Cell Membrane
d) Nucleus

In gel electrophoresis, the smallest DNA fragments can be found...
a) Stuck in the well
b) Closest to the well
c) Farthest from the well
d) Still in the test tube

What do we use to cut the DNA before gel electrophoresis?
a) Helicase
b) Lipase
c) DNA polymerase
d) Restriction enzymes

What is the purpose of gel electrophoresis?
a) Transcription
b) Separation of DNA fragments based on size
c) Destroy DNA
d) No purpose

What is the main difference between DNA and RNA?
a) DNA has uracil, while RNA has thymine
b) RNA is the master copy, DNA is a temporary messenger
c) DNA has a double helix structure, RNA has a single strand
d) There are no differences

Which of the following is a pyrimidine base in DNA?
a) Thymine
b) Adenine
c) Guanine
d) Uracil

What is the process of unwinding DNA, separating the strands, and building new complementary strands that will become an identical version of that DNA called?
a) Gel electrophoresis
b) DNA replication
c) Transcription
d) Translation

What does Chargaff's rule state?
a) Adenine equals thymine
b) Purines are smaller bases
c) Guanine pairs with cytosine
d) Genes encode proteins

Which base pairing is correct according to the DNA structure?
a) Adenine-Thymine
b) Guanine-Adenine
c) Thymine-Cytosine
d) Adenine-Uracil

Who confirmed that DNA, not proteins, is the genetic material using a blender in 1944?
a) Watson and Crick
b) Avery, Hersey, and Chase
c) Chargaff
d) Wilkins and Franklin

Who laid the foundation for genetics and explained dominant and recessive traits in 1865?
a) James Watson
b) Rosalind Franklin
c) Avery and Hersey
d) Gregor Mendel

Radioactive or fluorescent-labeled RNA or single-stranded DNA pieces that are complementary to the gene of interest and are used to confirm the presence of a cloned gene are called
a) probes
b) plasmids
c) vaccines
d) clones

What are nucleic acids?
a) Carbohydrates
b) Proteins
c) Macromolecules carrying genetic information
d) Lipids

How many carbon rings do purines have?
a) 1
b) 2
c) 3
d) 4

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