WorksheetsBiology SOL review - 3rd 9 weeks
Total questions: 25
Worksheet time: 27mins
Name
Class
Date
1.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
2.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
3.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
4.
If a body cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
5.
A single gene mutation results from
a)
a change in a base sequence in DNA
b)
recombination of traits
c)
the failure of chromosomes to separate
d)
blocked nerve messages
6.
Which statement best describes a chromosome?
a)
It is a gene that has thousands of different forms.
b)
It has genetic information contained in DNA.
c)
It is a reproductive cell that influences more than one trait.
d)
It contains hundreds of genetically indentical DNA molecules.
7.
In the F1 generation of 915 pea plants, there were 716 tall plants and 199 short plants. Tall is dominant over short. What was the parental cross?
a)
tt xtt
b)
Tt x Tt
c)
TT x tt
d)
Tt x tt
8.
The fourth child in the F2 generation has Down syndrome. Which of the following statements represents a reasonable explanation for the appearance of this syndrome the third generation when it is not expressed in the P1 or F1 generations?
a)
Down syndrome is a recessive trait and was passed down through the generations but not expressed.
b)
Down syndrome is caused by a dominant allele that becomes active under a limited set of environmental conditions.
c)
Down syndrome is the result of an alteration of the chromosome number and was not passed from P1 to F1 to F2.
d)
Down syndrome is a sex linked trait expressed in the fourth F2 child because this male possesses a single X chromosome.
9.
In certain rats, black fur is dominant over white fur. If two rats, both heterozygous for fur color are mated, their offspring would be expected to have
a)
four different genotypes and two different colors
b)
two different genotypes and three different colors
c)
three different genotypes and two different colors
d)
three different genotypes and three different colors
10.
Which of the following genotypes is homozygous recessive?
a)
RR
b)
Rr
c)
rr
d)
None of the Above
11.
Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?
a)
100% Pp (purple)
b)
50% Pp (purple); 50% pp (white)
c)
75% Pp (purple); 25% pp (white)
d)
25% PP, 50% Pp, 25% pp
75% purple, 25% white
75% purple, 25% white
12.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
13.
Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
14.
What does a Punnett Square help you do?
a)
Determine the ratio of phenotypes
b)
Determine the ratio of genotypes
c)
Predict possible traits the offspring will have
d)
All of the above
15.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
16.
The Law of Superposition helps scientists to determine what?
a)
The absolute age of rock layers
b)
The age of fossils
c)
The relative age of rock layers
d)
the super powers of rocks
17.
According to the law of superposition, the oldest fossils are found
a)
At the top of the rock layers
b)
Near the bottom of the rock layers
c)
In the middle of the rock layers
d)
Somewhat near the surface
18.
T15. The hypothesis that evolution of a species occurs in periods of rapid change separated by periods of little or no change is called
a)
divergence
b)
gradualism
c)
punctuated equilibrium
d)
isolation
19.
The model that predicts evolution occurs at a slow, steady rate is called...
a)
gradualism
b)
punctuated equilibrium
c)
adaptive radiation
d)
convergent evolution
20.
who developed the theory of Natural Selection that is accepted today?
a)
Darwin
b)
Lamarck
21.
Which word is defined as a reduced form of a functional structure in 1 organism that shows up as fully functional in another?
a)
homologous structures
b)
vestigial structures
c)
analogous structure
d)
DNA
22.
Charles Darwin’s observation that finches of different species on the Galápagos Islands have many similar physical characteristics supports the hypothesis that these finches
a)
have the ability to interbreed.
have the ability to interbreed.
have the ability to interbreed.
b)
acquired traits through use and disuse.
c)
all eat the same type of food.
d)
descended from a common ancestor.
23.
Frogs have webbed feet that help them to swim in water. Webbed feet in frogs are an example of a
a)
niche
b)
variation
c)
adaptation
d)
learned behavior
24.
What is a diagram that shows characteristic relationships among organisms called?
a)
Cladogram
b)
Karyotype chart
c)
Punnet square
d)
Biogeography
25.
What is required for evolution?
a)
overproduction (too many organisms)
b)
competition
c)
variation
d)
all of these
100 %
