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WorksheetsGenetics
Total questions: 55
Worksheet time: 2hrs 6mins
Name
Class
Date
1.
What characteristic would a child NOT inherit from parents?
a)
freckles
b)
eye color
c)
hair style
d)
dimples
2.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
3.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
4.
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%
5.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
6.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
7.
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
8.
Where is DNA in a eukaryotic cell?
a)
Cytoplasm
b)
Cell membrane
c)
Nucleus
d)
Vacuole
9.
Which of the following best describes a DNA molecule?
a)
double helix
b)
not present in plants
c)
found in non-living things
d)
DNA is an element on the periodic table
10.
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
11.
T = tall an t = short
TT and Tt would result in the following phenotype
TT and Tt would result in the following phenotype
a)
short
b)
tall
c)
medium sized
d)
neither tall or short
12.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
13.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
14.
What is the cause of some traits "skipping" a generation?
a)
dominant traits
b)
recessive traits
c)
mutations
d)
natural selection
15.
Who is considered the "father of genetics"?
a)
Gregor Mendel
b)
Reginald Punnett
c)
James Watson
d)
Justin Bieber
16.
The scientific study of heredity is ____.
a)
Genetics
b)
Punnett squares
c)
Inheritance
d)
Biology
17.
If one stronger trait "covers" up another weaker trait, the trait that covers the other is said to be:
a)
Dominant
b)
Heterozygous
c)
Recessive
d)
Hidden
18.
The purpose of selective breeding is to
a)
Get bigger animals
b)
get smaller animals
c)
create animals with desirable traits
d)
create animals with bad traits
19.
Why did the population of peppered moths in England change from light to dark after the Industrial Revolution?
a)
Light moths were easy to see against sooty trees and were eaten
b)
Light moths were killed by soot
c)
The birds that ate the dark moths were killed by soot
d)
Dark moths were produced by industrial processes
20.
The image you see is a mammoth. Which trait most suggests that the mammoth was adapted to live in a cold climate?
a)
its thick, furry coat
b)
its long, flexible trunk
c)
its sharp, curved tusks
d)
its broad, powerful body
21.
Which of the following statements best describes how adaptations benefits an organism?
a)
It guarantees that the organism will survive
b)
It increases an organism's chances of survival
c)
It guarantees that an organism will have a stout beak
d)
It increases an organism's chance of becoming extinct
22.
The monarch butterfly responds to seasonal changes by traveling far distances. This adaptation is known as:
a)
Migration
b)
Hibernation
c)
Physiological change
d)
Natural Selection
23.
natural differences in an inherited trait
a)
Asexual
b)
Uniform
c)
Variation
d)
Overproduction
24.
organisms with similar traits, and number of chromosomes, that are able to reproduce with each other and have fertile offspring
a)
Species
b)
Fitness
c)
Family
d)
Trait
25.
natural differences in an inherited trait
a)
Asexual
b)
Uniform
c)
Variation
d)
Overproduction
26.
organisms with similar traits, and number of chromosomes, that are able to reproduce with each other and have fertile offspring
a)
Species
b)
Fitness
c)
Family
d)
Trait
27.
when all members of a species have died
a)
Extinction
b)
Evolution
c)
Mutation
d)
Variation
28.
the process by which populations change over time
a)
Extinction
b)
Evolution
c)
Population
d)
Mutation
29.
parents produce more offspring than can possibly survive
a)
Evolution
b)
Variation
c)
Overproduction
d)
Extinction
30.
organisms that are better adapted (more fit) to their environment survive and reproduce more successfully than organisms that are less adapted to their environment
a)
Extinction
b)
Artificial Selection
c)
Variation
d)
Natural Selection
31.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
32.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
33.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
34.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
35.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
36.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
37.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
38.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
39.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
40.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
41.
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
42.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
43.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
44.
Which of the characteristics is a lion least likely to pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
45.
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
46.
Sickle-cell anemia and cystic fibrosis are caused by ______ alleles.
a)
recessive
b)
dominant
c)
in-dominant
47.
Males are affected by sex-linked genetic disorders __________ than females
a)
more often
b)
less often
c)
same often
48.
How is hemophilia or color-blindness inherited?
a)
faulty allele on X chromosome
b)
randomly
c)
by touching a rusty nail
49.
What is the Punnett square used to predict?
a)
possible genotypes for the cross
b)
which traits are dominant
c)
which traits are recessive
d)
the number of offspring
50.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
51.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
52.
Which cellular process is shown?
a)
meiosis
b)
endocytosis
c)
mitosis
d)
phagocytosis
53.
If a body cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
54.
What phase is shown in the picture?
a)
metaphase 2
b)
metaphase 1
c)
anaphase 1
d)
prophase 2
55.
The person who devised a method to predict the offspring from a cross between to parent genotypes is...
a)
Punnett
b)
Mendel
c)
Watson
d)
Crick
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