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GENETICS FINAL EXAM QUESTIONS AND ANSWERS
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GENETICS FINAL EXAM QUESTIONS AND ANSWERS
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Name: Score:129 Multiple choice questions
Term 1 of 129
When creating a karyotype, the autosomes are ordered in descending length. The short arm is
known as "p", and the long arm is called
"x".
"y".
"a".
"q".
Term 2 of 129
Noncoding RNAs include:
tRNAs
rRNAs
snoRNAs
snRNAs
all of the above.
only a, b, and c.
Term 3 of 129
If and individual is affected by a rare recessive trait, what likely occurred for this to happen?
A) Something went wrong when the egg and sperm connected
B) The affected individual is the product of a consanguineous mating
C) It was already a trait in the ancestor line
D) None of that person's ancestors displayed the same trait
E) Both B and D
,Term 4 of 129
Which of the following tools is used to amplify an identified DNA sequence?
polymerase chain reaction
DNA probe
sequencing
mutation
Term 5 of 129
Which of the following tools is the protocol for transferring DNA sequences separated by gel
electrophoresis onto a filter paper for analysis with a DNA probe?
mutation
polymerase chain reaction
Southern blotting
restriction enzymes
Term 6 of 129
There are _____ usually found in the genetic code.
3 start codons and 1 stop codon
2 start codons and 2 stop codons
1 start codon and 3 stop codons
0 start codons and 4 stop codons
Term 7 of 129
Which of the following is not a way a mutation can be created?
Nonsense
Missense
Frameshift
Degeneration
,Term 8 of 129
In what direction does DNA synthesis proceed?
3'-5'
5'-5'
3'-3'
5'-3'
Term 9 of 129
Which of the following is not true of prokaryotes?
Some have the ability to inhabit extreme enviroments
They lack a nuclear membrane
They have membrane bound organelles
All bacteria are prokaryotes
They are, on average, smaller than eukaryotic cells
Term 10 of 129
Assuming that both parent plants in the diagram below are homozygous, why would all of the
f1 generation have yellow phenotypes?
Help Getting Started
diagram showing the result of cross-pollination in the first 2 offspring generations--in
generation f1 all are yellow peas but in generation f2 the ratio of yellow to green peas is 3 to 1
because the f1 genotypes are homozygous
because yellow is dominant over green
because both parents passed on yellow alleles
, Term 11 of 129
A codon consists of:
A nitrogenous base, five-carbon sugar, and a phosphate group
A chain of polypeptides
A sequence of three nucleotides read in a defined reading frame
DNA transcripted into RNA
Term 12 of 129
Which of the following tools identify patterns of inheritance in regards to a family's genetic
features?
Punnet Square
Pedigree
Ancestral Chart
History Lines
Genetic Association Charts
Term 13 of 129
In the diagram below, what accounts for the green pea seed in the f2 generation?
Help Getting Started
diagram showing the result of cross-pollination in the first 2 offspring generations--in
generation f1 all are yellow peas but in generation f2 the ratio of yellow to green peas is 3 to 1
On average, 1 out of 4 offspring of heterozygous parents will be homozygous recessive.
The yellow allele is dominant over the green one.
The f1 generation parents are homozygous yellow.
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