NEW
Font size
S
M
L
XL
WorksheetsGenetics - Who are you?
Total questions: 50
Worksheet time: 1hrs 9mins
Name
Class
Date
1.
This is a quiz on Genetics please try your best and have fun
You will need to know what hybrid and Purebred mean
You will need to know what hybrid and Purebred mean
a)
Choose this one it's the right answer
b)
This is not right
2.
Which of these are characteristics of inherited traits?
a)
being able to speak in front of a crowd
b)
having green eyes and brown hair
c)
mastering your multiplication facts
d)
becoming a teacher
3.
What is the chemical called that is found inside our cell's nucleus and determines our inherited traits?
a)
D.N.A.
b)
genes
c)
chromosomes
d)
chloroplast
4.
Every organism has traits that make it ________________.
a)
the same
b)
an animal
c)
unique
d)
learned
5.
A characteristic passed from parents to their offspring is called a __________________ trait.
a)
acquired
b)
inherited
c)
dominant
d)
recessive
6.
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
7.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
8.
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
9.
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
10.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
11.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
12.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
13.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
14.
What is a segment of DNA (spiral ladder or double helix molecule) found on a chromosome that determines the inheritance of a certain trait?
a)
Genes
b)
Chromosomes
c)
Nucleus
d)
Allele
15.
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
16.
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%
17.
Two brown eyed parents who each had a blue-eye parent have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
18.
H=white hair
h= non-white hair
If you cross a horse with HH and a horse with hh what fraction of the offspring would be expected to have white hair?
h= non-white hair
If you cross a horse with HH and a horse with hh what fraction of the offspring would be expected to have white hair?
a)
0/4
b)
3/4
c)
1/2
d)
4/4
19.
What is the definition of Heredity?
a)
the persons genes
b)
the genes 2 people have
c)
genetics passed from the parent to the offspring.
d)
the division of sex cells and body cells
20.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
21.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
22.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
23.
How many pairs of chromosomes are in your cells?
a)
23
b)
19
c)
12
d)
10
24.
What kind of traits show themselves?
a)
shy traits
b)
brave traits
c)
recessive traits
d)
dominant traits
25.
What does a Punnett Square help you do?
a)
Determine the ratio of phenotypes
b)
Determine the ratio of genotypes
c)
Predict possible traits the offspring will have
d)
All of the above
26.
what is this
a)
DNA
b)
RNA
c)
histones
d)
chromosomes
27.
What is this
a)
Addition square
b)
Punnet square
c)
Square
d)
pinnet square
28.
A gamete has ____ amount of chromosomes
a)
46
b)
23
c)
12
d)
0
29.
True or false
you find sperms in a boys body ONLY
a)
True
b)
False
30.
What is an egg
a)
A gamete you find in boys bodys
b)
A type of cell
c)
A gamete you find only in a girl’s body
d)
Nothing
31.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
32.
Where are genes located?
a)
in your brain
b)
in cells
c)
in chromosomes
d)
in the air
33.
TT,tt,PP,pp,SS,ss are examples of alleles that are?
a)
homozygous
b)
heterozygous
c)
different
d)
homologous
34.
Y for yellow body is dominant over y for blue body. What alleles would produce yellow bodies?
a)
YY,yy
b)
Yy,yy
c)
YY only
d)
YY,Yy
35.
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
36.
A heterozygous yellow pea plant's genotype would be:
a)
YY
b)
yy
c)
Yy
d)
Yg
37.
Rolling the tongue is .....
a)
an inherited trait
b)
a neat skill
c)
random in humans
d)
comes to those who eat super healthy
38.
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
39.
A corn plant heterozygous for tall sprouts mates with a corn plant with short sprouts. If tall sprouts are dominant, how many different phenotypes are possible in the offspring?
a)
1
b)
2
c)
3
d)
4
40.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
41.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
42.
What is the genotype for this organism?
(E= 3 eyes, e= 1 eye)
(E= 3 eyes, e= 1 eye)
a)
EE
b)
Ee
c)
ee
d)
EE or Ee
43.
True/False: Different genotypes can code for the same phenotype.
a)
True
b)
False
44.
In certain rats, black fur is dominant over white fur. If two rats, both heterozygous for fur color are mated, their offspring would be expected to have
a)
four different genotypes and two different colors
b)
two different genotypes and three different colors
c)
three different genotypes and two different colors
d)
three different genotypes and three different colors
45.
Put in order smallest to largest:
a)
Chromosome - DNA - Gene
b)
Gene - DNA - Chromosome
c)
DNA - Gene Chromosome
d)
Chromosome - Gene - DNA
46.
The dominant trait is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
47.
The genetic makeup of an organism. Example BB
a)
genotype
b)
phenotype
c)
Dominant
d)
Recessive
48.
The man who studied genetics and considered the 'father of genetics.'
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
49.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
50.
Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?
a)
100% Pp (purple)
b)
50% Pp (purple); 50% pp (white)
c)
75% Pp (purple); 25% pp (white)
d)
25% PP, 50% Pp, 25% pp
75% purple, 25% white
75% purple, 25% white
Reset
