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Unit 5 Study Guide Questions

Total questions: 63

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

Which of the following is true about DNA? Select two correct statements.

a)

DNA determines which language people speak.

b)

DNA codes genetic information for an entire organism.

c)

DNA transfers genetic information between generations.

d)

DNA transfers energy between cells.

2.

How have new technologies and discoveries impacted our understanding of DNA and genetics? Select two correct answers.

a)

Scientists used the work of others to continue researching DNA.

b)

DNA research ended with the development of the double helix model.

c)

There is nothing new to discover about DNA and genetics.

d)

X-rays were used to produce the first image of a DNA molecule.

3.

Which type of trait is developed during an individual's lifetime?

a)

Inherited

b)

Acquired

c)

Genetic

d)

Dominant

4.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
5.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
6.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
7.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
8.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
9.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
10.
Which shows the correct complementary base pairing for DNA?
a)
C-A, T-G
b)
A-G, C-T
c)
C-G, U-A
d)
T-A, G-C
11.

Bundled up, organized DNA is called a

a)

gene

b)

trait

c)

chromosome

d)

nucleotide

12.

What is a section of DNA that codes for a specific protein called?

a)

RNA

b)

replication

c)

gene

d)

protein

13.
_____________________ carries information for inherited traits.
a)
DNA
b)
FBI
c)
RNA
d)
CBS
14.

In mice, black fur genotypes are FF or Ff

In mice, white fur genotypes are ff

In mice, which trait is recessive?

a)

Black fur

b)

White fur

c)

Brown fur

d)

Gray fur

15.
In the Punnett square shown, what must the genotype of the missing parent be?
a)
BB
b)
Bb
c)
bb
d)
Tt
16.
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%
17.
What are the possible genotypes for this cross?
(Click the picture to see it without the text)
a)
TT = 25% Tt= 50% tt=25%
b)
all tall
c)
TT= 75% tt = 25%
d)
Tt = 100%
18.
What is the dominant trait?
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
19.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
20.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
21.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
22.
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
23.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
24.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
25.
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%
26.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
27.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
28.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
29.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
30.
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
31.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
32.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
33.

W=wings, w=no wings

What off spring would you get from mixing homozygous dominant with homozygous recessive?

a)

WW & ww

b)

WW, Ww, ww

c)

Ww

d)

Ww, ww

e)

Ww, WW

34.

W=wings, w=no wings

What off spring would you get from mixing homozygous dominant with homozygous recessive?

a)

50% with wings, 50% no wings

b)

100% with wings, 0% no wings

c)

25% with wings, 75% no wings

d)

75% with wings, 25% no wings

e)

0% with wings, 100% no wings

35.

EACH parent provided ______ of your genes.

a)

25%

b)

50%

c)

75%

d)

100%

36.

Look at the picture. The probability that a child will inherit the recessive trait (represented by the genotype bb) is

a)

25%

b)

50%

c)

75%

d)

100%

37.

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?

a)

0 in 4

b)

1 in 4

c)

2 in 4

d)

4 in 4

38.

What belongs in the yellow box?

a)

AA

b)

Aa

c)

aa

39.

Fill in the yellow box.

a)

Bb

b)

BB

c)

bb

40.

What is the chance that the offspring born from this cross will have a homozygous dominant genotype?

a)

25%

b)

50%

c)

75%

d)

100%

41.

In a certain species of plant, the color purple (P) is dominant over white color (p).

According to the Punnett Square, what is the probability of an offspring being white?

a)

25%

b)

0%

c)

100%

d)

50%

42.
What is the allele combination for square 1?
a)
Dd
b)
DD
c)
dd
d)
D
43.
What is the possibility of this offspring having a dominate trait?
a)
50%
b)
75%
c)
25%
d)
0%
44.
Which choice best represents the genotype of this cross?
a)
1 Yy: 2 yy: 0 YY
b)
2 Yy: 2 yy: 0 YY
c)
3 Yy: 1 yy: 0 YY
d)
1 Yy: 3 yy: 0 YY
45.

Tendency to becoming bald as you age.

a)

Inherited

b)

Acquired

46.

A goldfish that swims up to the top of the bowl when a hand appears

a)

Inherited Trait

b)

Acquired Trait

47.
Coordination
a)

Inherited

b)

Acquired

48.

Having naturally dark hair

a)

acquired trait

b)

inherited trait

49.

A dog doing a trick.

a)

instinct/inherited

b)

acquired

50.

A girl with freckles on her face

a)

Inherited

b)

Acquired

51.
Riding a bike
a)

inherited trait

b)

acquired trait

52.
A plant leaning towards the sun
a)
inherited trait
b)
learned behavior 
53.

Sarah has a hitchhiker's thumb.

a)

inherited

b)

aquired

54.

eye makeup

a)

Inherited trait

b)

Acquired trait

55.

A person's blood type.

a)

inherited

b)

acquired

56.

A person's eating habits.

a)

inherited

b)

acquired

57.

The language that you speak.

a)

inherited

b)

acquired

58.

Inherited (born with) or Acquired (learned)

a)

Inherited

b)

Acquired

59.

Inherited (born with) or Acquired (learned)

a)

Inherited

b)

Acquired

60.

Inherited (born with) or Acquired (learned)

a)

Inherited

b)

Acquired

61.

Inherited (born with) or Acquired (learned)

a)

Inherited

b)

Acquired

62.

What is the structure of DNA?

a)

Single-Helix

b)

Double-Helix

c)

Triple-Helix

d)

X-Shaped

63.

Match the following

Remember: Apples in the Tree, Cars in the Garage

a)

Adenine

1.

Thymine

b)

Cytosine

2.

Guanine

c)

Guanine

3.

Cytosine

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