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WorksheetsGenetics and Biotechnology Review
Total questions: 54
Worksheet time: 2hrs 35mins
Name
Class
Date
1.
Having two of the same genes for the trait (TT, tt); Both dominant or both recessive.
a)
homozygous or purebred
b)
heterozygous or hybrid
c)
twin offspring
d)
pairs of chromosomes
2.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
3.
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%
4.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
5.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
6.
B=brown eyes
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
7.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
8.
Evan is a tall, 12 year old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?
a)
height
b)
the scar
c)
his intelligence
d)
ability to play drums
9.
Where is DNA in a eukaryotic cell?
a)
Cytoplasm
b)
Cell membrane
c)
Nucleus
d)
Vacuole
10.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
11.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
12.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
13.
In fruit flies eye color is carried on the X chromosome. RED is dominant to WHITE. What is the sex and color of the following: XrY
a)
female red
b)
female white
c)
male red
d)
male white
14.
In fruit flies eye color is carried on the X chromosome. RED is dominant to WHITE. What is the sex and color of the following: XRXR
a)
female red
b)
female white
c)
male red
d)
male white
15.
What determines gender in humans?
a)
the X and Y chromosome
b)
chromosome 21
c)
codominance
d)
epistasis
16.
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
17.
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
18.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
19.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
20.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
21.
What type of chromosomal abnormality do people with Down Syndrome have?
a)
trisomy 21
b)
monosomy 21
c)
recessive inheritance
d)
dominant inheritance
22.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
23.
How many alleles (letters) does a child get from each parent for EACH trait?
a)
1
b)
2
c)
46
d)
26
24.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
25.
Which event during meiosis causes GENETIC VARIATION?
a)
crossing over
b)
protein synthesis
c)
cytokinesis
26.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
27.
What do half colored symbols represent?
a)
The individual is a carrier.
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
28.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
29.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
30.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
31.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
32.
How many people in the pedigree are carriers for the disorder?
a)
6
b)
8
c)
2
d)
9
33.
A person with Down syndrome has ______ copies of chromosome 21.
a)
1
b)
2
c)
3
d)
4
34.
A boy who is colorblind inherited the disorder from his
a)
Mother
b)
Father
c)
Either Parent
d)
None of the above
35.
If a man does not have hemophilia (X linked trait), what percentage of his daughters will have hemophilia?
a)
100%
b)
75%
c)
50%
d)
0%
36.
Autosomes in a karyotype are
a)
Chromosomes 1-22
b)
Sex Chromosomes
c)
Oldsmobile
d)
gamete
37.
Photograph of chromosomes grouped in ordered pairs
a)
pedigree
b)
Punnett Square
c)
Venn Diagram
d)
Karyotype
38.
Chromosome that is not a sex chromosome
a)
Chromosome
b)
Autosome
c)
Sex Chromosome
d)
Homologous pair
39.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
40.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
41.
How many girls did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
42.
Purebred is another word for __________, while hybrid is another word for __________.
a)
dominant; recessive
b)
recessive; dominant
c)
homozygous; heterozygous
d)
heterozygous; homozygous
43.
Organism that is genetically engineered by inserting a gene from another organism.
a)
bacteria
b)
forensics
c)
transgenic organism
d)
penicillin
44.
Which of the below biotechnological advances is MOST beneficial to Florida FARMERS?
a)
Development of disease resistant plants for higher yields
b)
Development of more effective human vaccines
c)
The ability to create more antibiotics from bacteria
d)
Producing enzymes to eliminate pollutants
45.
The way that crimes are solved today was affected by which of the following technologies?
a)
gene therapy
b)
DNA fingerprinting
c)
genetic testing
d)
Genetic modification
46.
Which technology below would probably be the most important to a person who had diabetes and had to take insulin every day?
a)
testing parents for genetic disorders before they have children
b)
engineering fruits and vegetables that resist insects and other pests
c)
developing ways to identify criminals through DNA fingerprinting
d)
using recombinant DNA to produce human hormones from bacteria
47.
Which organisms are used to manufacture human insulin?
a)
Protozoans
b)
Algae
c)
Bacteria
d)
Amoebas
48.
The blood stain most likely belongs to
a)
Bob
b)
Sue
c)
John
d)
Lisa
49.
Which is a use of genetically engineered bacteria?
a)
making human insulin
b)
DNA fingerprint for blood left at a crime scene
c)
producing corn that is resistant to herbicides
50.
This diagram represents which of the following?
a)
Gel electrophoresis
b)
Gene therapy
c)
Cloning
d)
Genetic engineering
51.
Which of the following cuts DNA into small pieces?
a)
dissolving blue dye
b)
restriction enzymes
c)
surgically cutting DNA under microscope
52.
A new variety of rice called golden rice has been genetically modified to have vitamin A. People in starving countries can eat this rice and receive the vitamin A. Without this rice people go blind from vitamin A deficiency. What word(s) below best describes this rice?
a)
electrophoresis
b)
DNA fingerprinting
c)
G.M.O
d)
clone
53.
Why is DNA fingerprinting used?
a)
To determine who is the child's father
b)
Link suspects to a crime scene
c)
determine if a family relationship exist between two people
d)
all of the above
54.
According to the karyotype to the right, which of the following is true? A. B. C. The gender cannot be determined by the karyotype D. Karyotype shows a male with no genetic disorders
a)
Karyotype shows a female with Down Syndrome
b)
Karyotype shows a male with Down Syndrome
c)
The gender cannot be determined by the karyotype
d)
Karyotype shows a male with no genetic disorders
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