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Worksheets3rd 9 Weeks Practice Quiz
Total questions: 100
Worksheet time: 2hrs 2mins
What are the parts of a nucleotide?
phosphate, sugar, base
A, T, G, C
Nucleic Acids
two base pairs connected
The size and shape of proteins determines:
their function
their bonds
their nucleotides
their chromosomes
The 'backbone' or 'ribbon' of the DNA strand is made of:
phosphate and sugar
phosphate only
phosphate and base
sugar and base
What is this a picture of?
nucleotide
DNA strand
chromosome
gene
DNA is shaped in a:
double helix
tightly packed swirl
twisted ladder
nucleotide
In which phase does the DNA copy itself?
interphase
metaphase
anaphase
telophase
ATG TGA CAG
T-G-A-C-C-A
T-G-A-G-C-A
TGGCAA
What will be the result of this deletion mutation?
substitution
frameshift mutation
point mutation
insertion
What role does the mRNA play in protein synthesis?
mRNA modifies the original DNA strand
mRNA mutates to form protein
mRNA is the transcribed message from a DNA sequence
mRNA moves the amino acids
What is the complimentary mRNA sequence to the DNA
sequence A-T-T-G-C-A.
T-A-A-C-G-T
U-A-A-C-G-T
U-A-A-C-G-U
T-A-A-G-C-U
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
Mutation: ATC GCAT
What mutation occurred?
Which of the following is genetic disorder that results from having an extra chromosomes?
Cystic Fibrosis
Hemophilia
Down's Syndrome
Color blindness
Down syndrome (Trisomy 21) is an example of...
Nondisjunction
Duplication
Translocation
Gene Mutation
What would be the genotype of an affected individual with an autosomal recessive disorder?
AA
Aa
aa
XaY
Which of the following genotypes could be a carrier?
Tt
TT
tt
XTY
This is an example of which pattern of inheritance?
Autosomal Dominant
Autosomal Recessive
Sex-Linked
Autosomal Chromosomal
Which statement about Sex-Linked Recessive disorders is TRUE?
Disease is common in the family
Disease will never skip a generation
Affected fathers will NEVER pass the disease on to their sons
Females are more likely to inherit the disease than males
Which pattern of inheritance is this?
Autosomal Dominant
Autosomal Recessive
Sex-Linked
Sex- Chromosome
The inherited disease in which hemoglobin molecules clump into long fibers, changing the shape of blood cells is
cystic fibrosis
sickle cell disease
Huntington's disease
Klinefelter's syndrome
Which suspect should be charged with the crime?
Suspect 1
Suspect 2
Suspect 3
None of these suspects
What is transgenic organisms?
Organisms with genes from other organism
The use of genetic engineering to find solutions to problems.
Scientists study DNA sequences with DNA fragments, DNA polymerase, fluorescently labeled nucleotides, and gel electrophoresis.
All of the above.
A technique for making millions of copies of a specific region of DNA.
DNA ligase
restriction enzymes
gel electrophoresis
polymerase chain reaction
What did Gregor Mendel study?
Mold Spores
Pea Plants
Sun Flowers
Rats
When an organism has two different alleles, it is called
homozygous
heterozygous
recessive
dominant
Grey (G) fur is dominant to brown (g) fur in mice. What would be the genotype of a mouse that is homozygous dominant?
GG
Gg
gg
GGG
Wavy hair is a mix of curly and straight hair. Which of the following expalains this blending of traits?
CoDominance
Incomplete Dominance
Incoherent Dominance
DomDominance
What are the phenotype percentages of the offspring?
(A-Brown fur color; a-white fur color)
50 % Brown fur and 50% White fur
25 % Brown fur and 75% White fur
75 % Brown fur and 25% White fur
0% Brown fur and 100% White fur
Which individual in the first generation is a carrier?
The male
The female
The grandchild
None of the above
In humans, brown eyes (B) are dominant, and blue eyes are recessive (b). If a homozygous dominant male is crossed with a heterozygous female, what are the most likely genotypes of the offspring?
100% homozygous dominant
100% heteozygous
50% homozygous dominant
50% heterozygous
50% homozygous dominant
50% homozygous recessive
How many people in this whole pedigree are heterozygous?
7
3
4
6
5
If a person has type B blood, the phenotype is B. What can the genotype be?
IBIB or IBi
IAIA or IAi
IAIB
ii
What type of inheritance is determined by multiple genes and there can be a range of traits?
Codominance
Incomplete dominance
Polygenic traits
The woman who is colorblind marries a man with normal vision. What is the probability that their sons will be colorblind?
0%
25%
50%
100%
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
Farmers breed cows to produce high amounts of milk. This is an example of _____________.
Natural Selection
Variations in a species
Selective Breeding
inbreeding
When a species is separated by water, mountains, or some type of natural barrier, what type of speciation can occur?
Geographic Isolation
Reproductive Isolation
Genetic Drift
Co-evolution
What do the similarities of these structures suggest?
a common ancestor
grow at different rates
evolved slowly
lived a long time
If the embryos of several different species are very similar in their early stages of development, the similarities could indicate which of the following?
The species are in the same genus.
The embryos are a result of external fertilization.
The embryos are probably cloned.
The species are closely related and share a close common ancestor.
Some tortoises on the Galapagos Islands have rounded shells and shorter necks so that they can eat the vegetation near the ground, and some of them have long necks with shells that are bent upwards. This feature allows these particular tortoises to be able to eat from taller shrubs and vegetation that is higher off the ground. What is this an example of?
an adaptation
a geographical isolation
a homologous structure
a vestigial structure
When all the members of a species completely dies out, it is called __________________.
Adaptation
Extinction
Fossilization
Mutation
Charles Darwin was fascinated by the diversity of life on Earth. He wanted to know why organisms were so different, yet some were so similar. During his quest for more knowledge, he developed the _______________.
Theory of Relativity
Theory of Diversity
Theory of Adaptations
Theory of Evolution by Natural Selection
A mutation occurs in a green lizard population that causes some lizards to be brown instead of green. In what circumstance would this mutation be MOST beneficial to the brown lizards?
The brown lizards are also larger in size.
The brown color provides better camouflage from predators.
The green lizards move to a new habitat.
The brown color allows them to be more easily seen by predators.
Predict which moth would increase in population.
light
dark
neither
both
Which of the following was probably not present in the atmosphere of the primitive Earth?
methane
oxygen
water
carbon dioxide
In 1953, Stanley Miller and Harold Urey developed an apparatus that contributed to which of the following theories?
Primordial Soup Theory
Endosymbiotic Theory
RNA World Theory
Geologic Time Scale Theory
A normal human zygote should have _____ chromosomes inside.
46
23
92
64
When one gene turns OFF the expression of (an)other gene(s) this is an example of:
polygenic inheritance
epistasis
multiple alleles
co-dominance.
Traits that have a wide range of phenotype (eye color, fur color, etc.) are said to be:
polygenic
sex-linked
co-dominant
dominant
