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Genetics Overall Past and Present

Total questions: 47

Worksheet time: 1hrs 6mins

Name
Class
Date
1.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
2.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
3.
How many chromosomes are in a sex cell?
a)
46
b)
23
c)
26
d)
43
4.
The mathematical chance that something will happen is known as...
a)
chance
b)
luck
c)
probability
5.
He is known as the father of modern day genetics.
a)
Gregory Mendel
b)
Greg Mendel
c)
Gregor Mendel
d)
Grace Mendel
6.
Which is a true statements about this picture?
a)
Brown is recessive
b)
Brown is dominant
c)
Blue is dominant
d)
Blue is codominant
7.
Which of the following is not a base found in DNA?
a)
adenine
b)
thymine
c)
cytosine
d)
uracil
8.
Once replication in a DNA molecule is complete, each new DNA molecule contains 
a)
two new strands.
b)
3 exact copies of strands.
c)
one new strand and one old.
d)
two old strands.
9.
Amino acids are the building blocks of... 
a)
DNA
b)
RNA
c)
Atoms
d)
Proteins
10.
What is a Codon?
a)
4 base pairs that transfer to amino acids
b)
3 base pairs that transfer to amino acids
c)
3 base pairs that transfer to DNA
d)
3 base pairs that transfer to mRNA
11.
What is cancer?
a)
The heart does not receive enough blood.
b)
Sudden disruption of blood flow to part of the brain.
c)
Blood filled weak spot.
d)
Uncontrolled growth and spread of abnormal cells.
12.

Which type of tumor is being described:


Slow growing Not dangerous Does not spread

a)

Malignant

b)

Benign

13.
An abnormal mass of cancer cells is called a 
a)
tumor
b)
cyst
c)
lesion
d)
polyp
14.
Stem cells are
a)
cells that grow uncontrollably.
b)
undifferentiated and can develop into many types of cells.
c)
cells that never go through cell division.
d)
only found in embryos.
15.
Stem cells can be obtained from _________.
a)
embryos
b)
some adult tissues
c)
umbilical cord blood
d)
all of the above
16.

DNA is

a)

in the cytoplasm of the cells

b)

composed of ribonucleic acid

c)

in the nucleus of the cells

17.
The transfer of a gene from the DNA of one organism into another organism in order to produce an organism with desired traits.
a)
Genetic Engineering
b)
Karyotype
c)
Pedigree
d)
Genome
18.
What social impact could designer babies have?
a)
Utopia would exist because everyone would be perfect
b)
Go to space and colonize because they are geniuses
c)
New social classes based on who is designer and who is not could be created
d)
Eat trash and reduce pollution
19.
What is the probability of spinning red?
a)
0
b)
5/12
c)
1/2
d)
3/4
20.
You flip a nickel three times.
Find the probability that all flips will land on tails.
a)
1/2
b)
1/4
c)
1/6
d)
1/8
21.
B = brown fur  b = white fur
In the Punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
22.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
23.
What is the genotypic ratio here?
a)
25% blue eye 75 % brown eye 
b)
BB = 25% Bb = 50% bb = 25%
c)
BB= 50 % bb = 50%
d)
All brown eye
24.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
25.

In fruit flies, eye color is a sex linked trait. Red is dominant to white. What is the sex and eye color of flies with the following genotype: X R X R ?

a)

male with red eyes

b)

female with red eyes

c)

male with white eyes

d)

female with white eyes

26.

What are the genotypes of these flies:


white eyed, male ?

a)

X R X r

b)

X R X R

c)

Xr X r

d)

X r Y

e)

XR Y

27.

An allele is

a)

A version of a gene

b)

Another word for a gene

c)

Always different on homologous chromosomes

d)

Another word for flavour

28.

Why are men 16 times more likely to be color-blind than women?

a)

to be color-blind, you must have a Y chromosome

b)

Females must get TWO recessive genes for the trait where as males only need ONE of the recessive genes

c)

color-blindness is caused by testosterone

d)

color-blindness is caused by the same gene as baldness

29.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?
a)
XHXh
b)
XhXh
c)
XHXH
d)
XhY
30.
What is the chance of two parents with blood types AB and O producing an offspring with blood type O?
a)
0%
b)
25%
c)
50%
d)
100%
31.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
32.
An organism with two different alleles for a trait is said to be...
a)
recessive
b)
dominant
c)
hybrid
d)
purebred
33.
If you cross a black guinea pig with a white guinea pig and the offspring are gray, what type of dominant trait would that be.
a)
incomplete dominance
b)
codominance
c)
codependant
d)
cooperative
34.

Laney is the universal donor, what blood type does she have?

a)

O-

b)

O+

c)

AB+

d)

AB-

35.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
36.
If a red blood cell has no antigens on its surface, what is its blood type?
a)
A
b)
B
c)
AB
d)
O
37.
Stuart Snail is heterozygous for tall eyeballs.  Sally Snail has tall eyeballs but does carry the recessive allele.  What are the chances that their baby snail would have short eyeballs?
a)
75%
b)
50%
c)
25%
d)
0%
38.

How is the coronavirus spread?

a)

Through the air by sneezing, coughing

b)

Through the air by birds

c)

Through the ground by worms

d)

Through the water by fish

39.

What is a coronavirus?

a)

Coronaviruses are from one strain of viruses that are known to cause illness ranging from the common cold to more severe diseases

b)

Coronaviruses are a large family of viruses that are known to cause illness ranging from the common cold to more severe diseases

c)

Coronaviruses are from one strain of viruses that causes common colds

40.
What is the phenotype of an individual with Yy?
a)
Long Nose
b)
Stubby Nose
c)
Blue body
d)
Yellow body
41.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
42.
Having blue eyes is an example of
a)
genotype
b)
phenotype
43.
The genotype of:  Bbll  will have the PHENOTYPE of...
a)
black fur/short tail
b)
black fur/long tail
c)
white fur/short tail
d)
white fur/long tail
44.

In the Greek language, "homo" means

a)

same

b)

different

c)

human

d)

mojo

45.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
46.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
47.

A purple-flowered plant (PP) is crossed with a white flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have blue (PW) flowers?

a)

0%

b)

25%

c)

50%

d)

100%

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