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Genetics Quizzes for Exam 1
Terms in this set (35)
On average, how similar is your genome to your neighbors genome?
Which of the following technologies/innovations in our society utilize applied genetic concepts? (CHOOSE ALL THAT APPLY)
Ancestry testing, GMOS, Cancer Research, Pre-natal screening
The Hershey-Chase experiments demonstrated that
DNA is the genetic material.
Which of the following statements is false?
Nucleotides contain sulfur
What does ORF stand for?
Open Reading Frame
Every gene must have [CHOOSE ALL THAT APPLY]
a terminator, a promoter, an ORF
What important features must a chromosome have? [CHOOSE ALL THAT APPLY]
a centromere, genes, telomeres
Which of the following models best explains how DNA replicates?
the semi-conservative model
True or False, the term gene locus is synonymous with allele.
What term is used to describe the process of DNA synthesis?
Which of the following enzymes are used in the process described in question 1 to synthesize DNA?
DNA Polymerase, Primase, Helicase, Telomerase
Which of the following statements are true? (CHOOSE ALL THAT APPLY)
DNA is synthesized in the 5' to 3' direction.
What is the purpose of PCR?
Make DNA in vitro.
Where does transcription begin?
Which of the following occur during RNA processing? (CHOOSE ALL THAT APPLY)
5' Capping, Poly-adenylation, Splicing
Which of the following gets excised during splicing? (CHOOSE ALL THAT APPLY)
Which of the following is false regarding the genetic code?
There is only one codon per amino acid
Which of the following contribute to the shape of a protein? (CHOOSE ALL THAT APPLY)
Hydrophilic residues, The amino acid sequence, Hydrophobic residues, Hydrogen Bonds
Which RNA molecules play a direct role in the process of translation? (CHOOSE ALL THAT APPLY)
rRNA, tRNA, mRNA
Where is the ribosomal binding site located?
In the 5' UTR
Which of the following are true of both eukaryotic and prokaryotic translation? (CHOOSE ALL THAT APPLY)
They both utilize small and large ribosomal subunits in the process of translation.
True or false
There is a 1:1 ratio of mRNA transcript:polypeptide synthesized.
False: Typically 1 mRNA transcript will yield lots polypeptide synthesized.
Complete the following analogy:
RNA Polymerase is to transcription as _______ is to translation.
Which of the following would constitute a mutation? (CHOOSE ALL THAT APPLY)
A change in a genome sequence from TCAG to TCTG.
A daughter cell whose sequence differs from its parent cell by just a single insertion of a G base.
Which of the following statements help(s) explain why mutations are generally of little consequence? (CHOOSE ALL THAT APPLY)
Most mutations occur in non-genic regions. Of the mutations that do occur in genes, many are neutral.
True or False Only germ-line mutations are harmful to an organism because somatic mutations do not get passed down to the next generation.
False: many cancers arise as a result of somatic mutations. While they don't get passed on to the offspring, they are still harmful to the organism.
Which of the following mutations will most likely be the most problematic to an organism if occurring in a gene coding region of an essential gene?
A base deletion
Consider the following homologous genomic sequences
Sequence 1: ATGCAACGAT (97% of the population)
Sequence 2: ATGCTACGAT (3% of the population)
What is the technical term used to describe the difference between these two sequences?
single nucleotide polymorphism
Which of the following DNA strands would denature at the lowest temperature?
90% AT and 10% GC
How many leading strands are there in a replication bubble?
Which of the following are required for the process of translation?
tRNA, rRNA, mRNA, Ribosome
The process by which genetic information is copied during S- phase is called
Which of the following statements about DNA and RNA are true,
-both DNA and RNA are polymers that use nucleotides as their subunits
-DNA molecules in general are much longer than RNA molecules
-DNA contains Thymine while RNA contains Uracil
A double-stranded DNA molecule is 40 base pairs long and consists of 10 Adenine bases. How many cytosine bases are present in the middle ? (HINT:draw it out to prevent a careless mistake)
Which of the following could cause or are a type of insertion or deletion. (CHOOSE ALL THAT APPLY)
A frameshift mutation.
An intercalating agent (e.g. Ethidium Bromide).
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