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WorksheetsGenetics Unit Test Review
Total questions: 60
Worksheet time: 46mins
Name
Class
Date
1.
The passing of traits from parent to offspring
a)
Heredity
b)
Genetics
c)
Hybrid
d)
Probability
2.
Who was the father of genetics
a)
Sagan
b)
Issac Newton
c)
Gregor Mendel
d)
C.jenkins
3.
The study of heredity and the variation of inherited characteristics
a)
gene
b)
genetics
c)
meiosis
d)
hybrid
4.
which is heterozygous ?
a)
Tt
b)
TT
5.
Which is homozygous ?
a)
Zz
b)
SS
6.
what predicts the outcome
a)
genetic engineering
b)
punnet square
c)
probability
7.
the genetic makeup of an organism
a)
heterozygous
b)
punnet square
c)
genotype
8.
What is a phenotype?
a)
The expression of a trait; physical appearance.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
9.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
10.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
11.
Two heterozygous (Tt)tall pea plants are crossed. Which describes their offspring?
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short
12.
R=round seed
r=wrinkled seed.
Cross a homozygous round with a wrinkled. Which statement predicts the results?
r=wrinkled seed.
Cross a homozygous round with a wrinkled. Which statement predicts the results?
a)
offspring will be Rr
b)
offspring will be RR
c)
round seeds will be recessive to wrinkled
d)
Wrinkled will be observed in half of offspring
13.
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
a)
none
b)
3/4
c)
1/2
d)
all
14.
Pea plants can have green or yellow seeds. In a pea plant that is heterozygous for seed color, the allele for yellow seeds masks the effects of the allele of green seeds. Which of the following terms best describes the allele for yellow seeds?
a)
codominant
b)
recessive
c)
dominant
d)
sex-linked
15.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
16.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
17.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
18.
Colorblindness is a recessive, X chromosome sex-link disorder. Cross the parents to figure out which percentage of their offspring will be colorblind.
a)
25%
b)
0%
c)
75%
d)
50%
19.
What determines gender in humans?
a)
the X and Y chromosome
b)
chromosome 21
c)
codominance
d)
epistasis
20.
What is heredity?
a)
A kind of genetic disorder
b)
The way DNA divides
c)
A trait you inherit from your parents
d)
The passing down of traits from parents to children
21.
How many pairs of chromosomes exist in each of your cells?
a)
10
b)
12
c)
23
d)
46
22.
Why are your chromosomes arranged in pairs?
a)
Scientists have no idea
b)
Because you get one from your mom and one from your dad
c)
Because pairs can divide easier
d)
Because DNA is awesome
23.
Put in order smallest to largest:
a)
Chromosome - DNA - Gene
b)
Gene - DNA - Chromosome
c)
DNA - Gene Chromosome
d)
Chromosome - Gene - DNA
24.
Which of the following genotypes is a purebred?
a)
Bb
b)
Gg
c)
bb
d)
Dd
25.
What is the definition of phenotype?
a)
The physical expression of a trait
b)
The genetic combination of alleles
c)
A gene on the DNA strand
26.
What is the definition of genotype?
a)
The physical expression of a trait
b)
The genetic combination of alleles
c)
the genes on a DNA strand
27.
the condensed form of DNA is called________________
a)
an allele
b)
a gene
c)
a chromosome
d)
a phenotype
28.
Where, in the eukaryotic cell, is DNA located?
a)
ribosomes
b)
nucleus
c)
E.R.
d)
cytoplasm
29.
Which of the following will only show if two alleles are present?
a)
a dominant trait
b)
a recessive trait
30.
Which of the following genotypes would be considered heterozygous?
a)
BB
b)
gg
c)
Ff
d)
TT
31.
Which of the following is a phenotype?
a)
Bb
b)
Black fur
32.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
33.
What percentage of the offspring in the punnett square are shown as a hybrid?
a)
100%
b)
75%
c)
50%
d)
25%
34.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
35.
Squidward has light blue skin, and his genotype for this trait is Bb. Which of the following would describe Squidward?
a)
Purebred
b)
Hybrid
c)
Homozygous
d)
Sex-linked
36.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
37.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
38.
Are recessive traits shown with capital or lowercase letters?
a)
Capital
b)
Lowercase
39.
Which is a true statements about this picture?
a)
Brown is recessive
b)
Brown is dominant
c)
Blue is dominant
d)
Blue is codominant
40.
He is known as the father of modern day genetics.
a)
Gregory Mendel
b)
Greg Mendel
c)
Gregor Mendel
d)
Grace Mendel
41.
Tall is dominant to short. What is the phenotype of this organism?
Tt
Tt
a)
tall
b)
short
42.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
43.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
44.
How many girls in this family express this recessive disorder?
a)
4
b)
5
c)
6
d)
7
45.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
46.
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
47.
a)
Not affected male
b)
Not affected female
c)
Affected male
d)
Affected female
48.
a)
Not affected male
b)
Not affected female
c)
Affected male
d)
Affected female
49.
Why does individual IV-7 have colorblindness?
a)
Because his mom is a carrier.
b)
Because his dad has it.
c)
Because his siblings have it.
d)
Because his uncle has it.
50.
The shape of the DNA molecule is a double __________________?
a)
"S"
b)
helix
c)
rope
d)
curve
51.
Which one of the following nucleotide pair bonds would be found in a DNA molecule?
a)
adenine-guanine
b)
guanine-cytosine
c)
adenine-cytosine
d)
cytosine-uracil
52.
Which sequence of DNA bases would pair with this partiaal strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
53.
The genetic material of an organism is composed of
a)
lipids
b)
proteins
c)
Deoxyribonucleic acid
d)
complex carbohydrates
54.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
55.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
56.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
57.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
58.
How many times did Michael Jordan win the Final MVP?
a)
2
b)
4
c)
6
d)
0
59.
Which school has won the most NCAA Men's Basketball Championships (11)?
a)
UCLA
b)
Duke
c)
UNC
d)
Syracuse
60.
Which of the following is NOT a primary color?
a)
Yellow
b)
Blue
c)
Red
d)
Green
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