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Genetics Test 2022

Total questions: 50

Worksheet time: 2hrs 40mins

Name
Class
Date
1.
Having two of the same genes for the trait (TT, tt); Both dominant or both recessive.
a)
homozygous or purebred
b)
heterozygous or hybrid
c)
twin offspring
d)
pairs of chromosomes
2.
What characteristic would a child NOT inherit from parents?
a)
freckles
b)
eye color
c)
hair style
d)
dimples
3.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
4.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
5.
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%
6.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
7.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
8.
B=brown eyes
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
9.
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%
10.
Evan is a tall, 12 year old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?
a)
height
b)
the scar
c)
his intelligence
d)
ability to play drums
11.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
12.
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
13.
T = tall an t = short
TT and Tt would result in  the following phenotype
a)
short
b)
tall
c)
medium sized
d)
neither tall or short
14.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender 
d)
all of the above
15.
Who is considered the "father of genetics"?
a)
Gregor Mendel
b)
Reginald Punnett
c)
James Watson
d)
Justin Bieber
16.
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
17.
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
18.
Some traits are inherited, some traits are acquired. 
Language is an 
a)
inherited trait
b)
acquired trait
19.
Some traits are inherited, some traits are acquired. 
tongue rolling is 
a)
inherited trait
b)
acquired trait
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.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
22.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
23.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
24.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
25.
aa always shows up as
a)
dominant
b)
recessive
26.
AA and Aa always show up as
a)
dominant
b)
recessive
27.
Aa is
a)
homozygous
b)
heterozygous
28.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
29.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
30.
The longest phase of the cell cycle 
a)
prophase
b)
interphase
c)
metaphase
d)
mitosis
31.

If T is allele for brown hair what is genotype for blonde hair?

a)

TT

b)

Tt

c)

tt

d)

t

32.

What is the phenotype for brown hair?

a)

TT

b)

Tt

c)

tt

d)

brown hair

33.

Z is for bat wings. z is for butterfly wings. Can you get butterfly wings for the baby dragons from parents ZZ and Zz.

a)

yes

b)

no

34.

If S is straight hair and mother is ss, to get babies with curly hair the father has to be which genotyoe?

a)

SS

b)

ss or Ss

35.
Identify the stage of mitosis. 
a)
interphase
b)
prophase
c)
anaphase
d)
cytokinesis
36.
What phase of mitosis is occuring in the picture?
a)
Prophase
b)
Metaphase
c)
Cytokinesis
d)
Telophase
37.
What phase of mitosis is pictured?
a)
Metaphase
b)
Telophase
c)
Prophase
d)
Anaphase
38.
"The Great White Shark was 20 feet in length.  Phenotype or Genotype?
a)
phenotype
b)
genotype
39.
Females-XX; MalesXY.  A couple has 4 girls.  What is the chance the next child will be a boy?
a)
75%
b)
100%
c)
25%
d)
50%
40.
This diagram depicts which phase of mitosis? 
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
41.
What phase of mitosis is pictured?
a)
Prophase
b)
metaphase
c)
anaphase
d)
telephase
42.
a)
Prophase
b)
Interphase
c)
Anaphase
d)
Telophase
43.

This beautiful ball python is for sale at a reptile show. The label says it is $30,000. Why does it costs so much? Because

a)

it is unique and homozygous dominant

b)

it is unique and homozygous recessive

c)

it is unique and heterozygous

44.

This is a color morph of ball pythons (not a normal color). The phenotype is blue.

a)

true

b)

false

45.

You are at a reptile show. You see ball pythons that cost $85. This one is $15,000 and label says heterozygous for blue. What does that mean?

a)

It is carrying recessive gene for blue color.

b)

It is carrying dominant gene for blue color.

c)

It is mislabeled as the python should be blue.

46.

Which below is an example of selective breeding?

a)
b)
c)
d)
47.

Which below is an example of natural selection?

a)
b)
c)
d)

All of them are correct.

48.

Genetic engineering can

a)

be weaponized

b)

cure cancer eventually

c)

defeat aging

d)

all are correct

49.

When you cross this het. sunfire ball python with a normal ball python, what is the chance of any sunfire offspring?

a)

100%

b)

25%

c)

0%

d)

%50

50.

Green eyes, red hair, curly hair and being 6'6" are all examples of

a)

dominant traits

b)

recessive traits

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