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WorksheetsGenetics Intro
Total questions: 40
Worksheet time: 31mins
Name
Class
Date
1.
The yellow part of this picture is DNA. What do you think the turquoise part around it is?
a)
chromosome
b)
gene
c)
DNA
d)
ACTG
2.
What is a recessive allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
3.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
4.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
5.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
6.
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
7.
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
8.
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
9.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
10.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
11.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
12.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
13.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
14.
RR
a)
homozygous
b)
heterozygous
15.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
16.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
17.
If "T" is the allele for tall and "t" is the allele for short, then Tt would produce?
a)
tall
b)
short
c)
medium
d)
not enough info
18.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
19.
What is a dominant allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
20.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
21.
OO
a)
homozygous
b)
heterozygous
22.
What is a gene?
a)
A bundle (like a hot dog bun) that the DNA is packed into
b)
something inside the nucleus
c)
a piece of DNA
d)
all of your DNA
23.
HH
a)
homozygous
b)
heterozygous
24.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
25.
different forms of the same gene are called
a)
alleles
b)
genetics
c)
p generation
d)
law of segregation
26.
Zz
a)
homozygous
b)
heterozygous
27.
Dominant or recessive?
tt
tt
a)
Dominant
b)
Recessive
28.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
29.
Which of the following genotypes is homozygous recessive?
a)
RR
b)
Rr
c)
rr
d)
None of the Above
30.
A phenotype is the...
a)
letter combination
b)
dominant gene
c)
recessive gene
d)
physical appearance
31.
Pp
a)
Homozygous
b)
Heterozygous
32.
Jj
a)
homozygous
b)
heterozygous
33.
Bb
a)
homozygous
b)
heterozygous
34.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
35.
DD
a)
homozygous
b)
heterozygous
36.
Yellow is dominant to white. What is the phenotype of this organism?
Yy
Yy
a)
Yellow
b)
white
37.
What is a genotype?
a)
The genetic make up (code)
b)
The physical trait
38.
Yellow is dominant to white, what is the phenotype of this organism?
YY
YY
a)
Yellow
b)
white
39.
Yellow is dominant to white. What is the phenotype of this organism?
yy
yy
a)
Yellow
b)
white
40.
Which of the following pairs is homozygous dominant?
a)
Hh
b)
pp
c)
HH
d)
aa
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