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Genetics

Total questions: 33

Worksheet time: 33mins

Name
Class
Date
1.

A short way of saying Deoxyribonucleic acid:

a)

inherited trait

b)

chromosome

c)

DNA

d)

pedigree

2.
Why are your chromosomes arranged in pairs?
a)
Scientists have no idea
b)
Because you get one from your mom and one from your dad
c)
Because pairs can divide easier
d)
Because DNA is awesome
3.
How many pairs of chromosomes exist in each of your cells?
a)
10
b)
12
c)
23
d)
46
4.

Which statement is true?

a)

Your DNA is the same as your older brother's DNA.

b)

Your set of DNA is identical to your mother's DNA.

c)

Your set of DNA is identical to your father's DNA.

d)

Your DNA is unique to you.

5.
Which trait is completely determined by your DNA?
a)
Your personality
b)
Your intelligence
c)
Your natural hair color
d)
Your weight
6.

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)

None of the Above

7.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
8.

The passing of genetic traits from parent to offspring:

a)

heredity

b)

trait

c)

gene

d)

allele

9.
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%
10.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
11.

Genotype or Phenotype: Freckles

a)

Genotype

b)

Phenotype

12.
TT,tt,PP,pp,SS,ss are examples of alleles that are?
a)
homozygous
b)
heterozygous
c)
different
d)
homologous 
13.

The exact genetic makeup of an organism (examples include RR, Tt, and bb). These are all:

a)

phenotypes

b)

dominances

c)

genotypes

d)

traits

14.

Yellow body (Y) is dominant over blue body (y). What alleles would produce yellow bodies?

a)

YY,yy

b)

Yy,yy

c)

YY only

d)

YY,Yy

15.
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)
16.
Two of the same genes for a trait (sometimes called purebred). BB or bb
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
17.
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
18.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
19.

___________________________ is the field of science that studies how traits are inherited.

a)

Chemistry

b)

Zoology

c)

Ecology

d)

Genetics

20.

He is known as the father of modern day genetics.

a)

Grant Musick

b)

Alan Johnson

c)

Gregor Mendel

d)

George Punnett

21.
Which is a true statements about this picture?
a)
Brown is recessive
b)
Brown is dominant
c)
Blue is dominant
d)
Blue is codominant
22.
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?
a)
25%
b)
0%
c)
100%
d)
50%
23.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
24.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
25.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
26.
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
a)
25%
b)
1%
c)
10%
d)
0%
27.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
28.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
29.

What is the dominant trait?

a)

yellow pea seeds

b)

green pea seeds

c)

there is no dominant seed

d)

Jolly green giant seeds

30.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
31.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
32.
How many females are in this pedigree?
a)
3
b)
4
c)
6
d)
7
33.

How many generations are shown in this pedigree?

a)

1

b)

2

c)

3

d)

4

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