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WorksheetsGenetics Pre-Test
Total questions: 41
Worksheet time: 1hrs 17mins
Name
Class
Date
1.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
2.
___________________________ is the study of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
3.
If a child has red hair, they inherited a certain _______________ from their parents.
a)
ratio
b)
trait
c)
probability
d)
sex chromosome
4.
One trait that is ALWAYS present and causes the other traits to disappear is a ________________________
a)
recessive trait
b)
aggressive trait
c)
absent trait
d)
dominant trait
5.
True or False: Recessive traits are ALWAYS present
a)
True
b)
False
6.
A ___________________ is a relationship between two numbers
a)
genetic
b)
trait
c)
ratio
d)
cycle
7.
Offspring receives two sets of _____________ (one from each parent)
a)
blue jeans
b)
genes
c)
machines
d)
pedigree
8.
_____________________ is the appearance of an organism, or how it looks
a)
phenotype
b)
ratio
c)
recessive trait
d)
heredity
9.
A ________________________ is used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
10.
True or False: Sex Chromosomes carry genes that determine the skin color and hair color of a child.
a)
True
b)
False
11.
When humans breed purebred dogs to look a certain way and have traits that they like, this is an example of ___________________________
a)
Probably Breeding
b)
Sectional Breeding
c)
Selective Breeding
d)
Suspended Breeding
12.
__________________ is a tool for tracing through generations of family members.
a)
Pedigree
b)
Probability
c)
Purebred
d)
Punnett Square
13.
Dominant or Recessive?
Bb
Bb
a)
Dominant
b)
Recessive
14.
Dominant or Recessive?
ii
ii
a)
Dominant
b)
Recessive
15.
Dominant or Recessive?
gG
gG
a)
Dominant
b)
Recessive
16.
Homozygous or Heterozygous?
Bb
Bb
a)
Homozygous
b)
Heterozygous
17.
Homozygous or Heterozygous?
Gg
Gg
a)
Homozygous
b)
Heterozygous
18.
Genotype or Phenotype?
blue eyes
blue eyes
a)
Genotype
b)
Phenotype
19.
Determine the phenotype for the folling genotype, either round (R) or wrinkled (r)
RR
RR
a)
Round
b)
Wrinkled
20.
Genetic variation can arise from a random change in the DNA of a gene. The change is called a(n)
a)
mutation
b)
gene flow
c)
gene pool
d)
allele
21.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
22.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
23.
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%
24.
Which answer best describes codominant alleles?
a)
Both are equally dominant
b)
Both are equally recessive
c)
Neither are dominant or recessive
25.
Which of the following conclusions was a result of Mendel’s observations?
a)
Organisms that give rise to purebreds are genetically superior.
b)
Organisms that have intermediate features are self-pollinating.
c)
Organisms inherit two copies of each gene, one from each parent.
d)
Organisms that self-pollinate do not have "either-or" features.
26.
Austrian monk who studied pea plants and figured out the rules of heredity
a)
James maxwell
b)
Gregor Mendel
c)
Albert Einstein
d)
Robert Hooke
27.
If something is heterozygous, it is also...
a)
purebred
b)
hybrid
c)
dominant
d)
recessive
28.
Having two of the same alleles (also known as purebred)
a)
Homozygous
b)
Heterozygous
29.
I have 1 X chromosome and 1 Y chromosome. What am I?
a)
Male
b)
Female
30.
Identify the genotype for males.
a)
XY
b)
XX
c)
XXY
d)
YY
31.
The sex of a child is determined by
a)
whether the father's sperm contains an x or y chromosome
b)
whether the mother's egg contains an x or y chromosome
c)
the age of the parents
32.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
33.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
34.
A woman has type B blood and her husband has type O blood. What must be the woman's genotype, if they have a child with type O blood?
a)
BO
b)
BB
c)
OO
d)
type B
35.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
36.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
37.
If you cross a black chicken with a white chicken, only checkered chickens would be produced. What kind of inheritance pattern does this follow?
a)
incomplete Dominance
b)
Co-Dominance
38.
True or False: There is a 3/4 chance (75%) that this baby will have blue eyes.
a)
True
b)
False
39.
Looking at this pedigree, how many female family members are carriers?
a)
1
b)
3
c)
10
d)
7
40.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
41.
If you cross a red snapdragon with a white snapdragon, only pink snapdragons will be produced. What type of inheritance pattern does this follow?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Co-Dominance
d)
Sex-linked
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