NEW
Font size
S
M
L
XL
WorksheetsTopic 4 Genetics
Total questions: 22
Worksheet time: 19mins
Name
Class
Date
1.
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
2.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
3.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
4.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
5.
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
6.
Sex cells are produced through the process of
a)
mitosis
b)
cytokinesis
c)
binary fission
d)
meiosis
7.
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
8.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
9.
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
10.
A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?
a)
100% BB
b)
75% BB and 25%Bb
c)
50 % BB and 50% Bb
d)
50% Bb and 50% bb
11.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
12.
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
13.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
14.
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
15.
Who is considered the "father" of modern genetics?
a)
Einstein
b)
Mendel
c)
Disney
d)
Washington
16.
What tool helps us predict the outcome of a genetic cross?
a)
carpenter square
b)
Mendel square
c)
Punnett square
d)
genetic square
17.
TT,tt,PP,pp,SS,ss are examples of alleles that are?
a)
homozygous
b)
heterozygous
c)
different
d)
homologous
18.
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
19.
What plant did Mendel study?
a)
pea plant
b)
spinach
c)
carrots
d)
sunflowers
20.
Which of the following alleles is homozygous (purebred) recessive?
a)
TT
b)
Tt
c)
tt
d)
ts
21.
Red (R) is dominant over white (r). How can a flower be white?
a)
It can have RR and be white.
b)
It has to have rr.
c)
It has to have rR
d)
There is no way it can be white until the third generation.
22.
Different forms of a trait are called...
a)
chromosomes
b)
segments
c)
alleles.
d)
homozygous.
Reset
