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Genetics REVIEW ALL

Total questions: 70

Worksheet time: 1hrs 8mins

Name
Class
Date
1.
Identify the phase:
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
2.
Identify the phase.
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
3.
After meiosis II the daughter cells will contain ____ chromosomes if the original cell contained 78.
a)
78
b)
39
c)
23
d)
46
4.
Which of the following cells is a gamete?
a)
egg
b)
bone
c)
heart
d)
muscle
5.
In mitosis cells are genetically _______, but in meiosis cells are genetically ______.
a)
diverse, identical
b)
identical, diverse/different
6.

Is the following cell diploid or haploid?

a)

Diploid

b)

Haploid

7.
In sexual reproduction, chromosome reduction is necessary to ___.
a)
ensure that all offspring have the correct diploid number of chromosomes
b)
ensure that all offspring have the correct haploid number of chromosomes
c)
ensure that all daughter cells are identical
8.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
9.
A human usually has xx amount of chromosomes.
a)
6
b)
22
c)
4
d)
46
10.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
11.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
12.
What is another reason we need meiosis?
a)
So the offspring has genes from both parents
b)
So the offspring has genes from one parent
c)
So the offspring has genes from neither parents
d)
So the offspring makes its own genes
13.

a photograph or picture of chromosomes grouped in ordered pairs is a ______________

a)

pedigree

b)

Punnett Square

c)

Venn Diagram

d)

Karyotype

14.
Which sex chromosomes would indicate a typical human male?
a)
XX
b)
X
c)
XY
d)
XXY
15.
The results of the karyotype indicate that an individual has 3 chromosome #21. Which of the following genetic disorders do they have?
a)
Edwards Syndrome
b)
Patau's Syndrome
c)
Down's Syndrome
d)
Klinefelter's Syndrome
16.
Which structure is labeled as B in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
17.

By looking at the chromosomes how can you tell that this person is biologically female?

a)

Because there are two X chromosomes

b)

Because there are more chromosomes than in a male

18.

Squirrels have 40 chromosomes in its diploid cells. How many chromosomes will you find in their egg cells

a)

40

b)

23

c)

20

d)

Not enough information to answer the question

19.
A dog has 78 chromosomes in its body cells.  What is the diploid number?
a)
78
b)
39
c)
1
d)
100
20.
A Goat has 60 chromosomes in its body cells.  What is the haploid number?
a)
60
b)
30
c)
100
d)
120
21.
a)
This karyotype shows Trisomy 21
b)
This karyotype has no abnormality
c)
This karyotype is missing a sex chromosome (monosomy x)
d)
This karyotype is from a gamete
22.
What is the chromosomal condition of the individual whose karyotype is seen in the image?
a)
Monosomy X (Turner's Syndrome)
b)
Trisomy 21 (Down's Syndrome)
c)
Trisomy 13 (Patau Syndrome)
d)
Trisomy 18 (Edwards's Syndrome)
23.
When chromosomes fail to separate correctly during anaphase of meiosis, what can occur?
a)
extra chromosomes are found in the sex cell
b)
chromosomes of the sex cell are doubled
c)
chromosomes of the sex cell are halved
d)
meiosis never completes
24.
Nondisjunction can result in 
a)
trisomy conditions
b)
monosomy conditions
c)
additional sex chromosomes
d)
all of these
25.

an organism that has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease.

a)

carrier

b)

heredity

c)

phenotype

d)

purebred

26.

a situation in which both alleles for a gene are expressed equally (both are seen at the same time)

a)

carrier

b)

codominance

c)

genotype

d)

incomplete dominance

27.

an organism’s genetic makeup or allele combinations (Tt, TT, tt)

a)

genotype

b)

phenotype

c)

polygenic inheritance

d)

purebred

28.

the passing of traits from parents to offspring

a)

genotype

b)

probability

c)

heredity

d)

selective breeding

29.

having two identical alleles for a particular gene (HH, hh)

a)

heterozygous

b)

homozygous

c)

multiple alleles

d)

trait

30.

an offspring of crosses that has two different alleles for a trait

a)

homozygous

b)

heredity

c)

purebred

d)

hybrid

31.

a situation in which one allele is not completely dominant over another allele (it’s like a blending)

a)

codominance

b)

carrier

c)

incomplete dominance

d)

purebred

32.

three or more possible alleles of a gene that determine a trait

a)

homozygous

b)

phenotype

c)

codominance

d)

multiple alleles

33.

an organism’s physical appearance or visible traits

a)

genotype

b)

phenotype

c)

codominance

d)

trait

34.
the children or young, such as babies or puppies, that are the result of reproduction
a)
offspring
b)
parents
c)
genes
d)
code
35.

the genotype "aa" would result  in a
a)
recessive trait
b)
dominant trait
36.
T = tall, and  t = short. 
So a plant with the genotype
"Tt" would be
a)
medium sized
b)
tall
c)
short
37.
section of the DNA molecule that controls and determines the traits of an organism
a)
chromosome
b)
nucleus
c)
code
d)
gene
38.

Provide an example of a Homozygous Genotype.

a)

Jj

b)

Ll

c)

Aa

d)

DD

39.

Provide an example of a Heterozygous Genotype.

a)

Ff

b)

gg

c)

HH

d)

WW

40.

Provide an example of a Homozygous Recessive Genotype.

a)

qq

b)

YY

c)

EE

d)

WW

41.

Which of the following is an example of Codominance?

a)

A Red Fish + A Blue Fish = A Purple Fish

b)

A White Dog + A Brown Dog = A Light Brown Dog

c)

A Orange Flower + A Pink Flower = A Flower with Pink and Orange Petals

d)

Two blonde haired parents having a child with black hair

42.

Which of the following is an example of Incomplete Dominance?

a)

A Red Fish + A Blue Fish = A Purple Fish

b)

A White Dog + A Brown Dog = A Dog with White and Brown Fur

c)

A Orange Flower + A Pink Flower = A Flower with Pink and Orange Petals

d)

Two blonde haired parents having a child with black hair

43.

The proteins found on the surface of RBCs that allow us to type blood as A, B, O or AB are called

a)

antigens

b)

antibodies

c)

aggluntates

d)

Rh factors

44.
If a father is AA and a mother is AB, what is the probability for a child with AB blood? 
a)
0%
b)
25%
c)
50%
d)
75%
45.
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%
46.

A woman has type B blood and her husband has type O blood. What must be the woman's genotype, if they have a child with type O blood?

a)

IB i

b)

IB IB

c)

ii

d)

type B blood

47.

If a father is IA IA and a mother is IA IB, what is the probability for a child with AB blood type?

a)

0%

b)

25%

c)

50%

d)

75%

48.

The different forms of a gene are called ---

a)

traits

b)

hybrids

c)

alleles

49.

The hair form gene shows incomplete dominance. If your genotype is SS, you will have straight hair. If your genotype is CC, you will have curly hair. If your genotype is SC, you will have wavy hair. Mr. and Mrs. Anderson both have wavy hair (SC). What percentage of their children will also have wavy hair (SC)?

a)

25%

b)

50%

c)

75%

d)

100%

50.

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

a)

male with white eyes

b)

female with red eyes

c)

male with red eyes

d)

female with white eyes

51.
The sex of a child is determined by
a)
whether the father's sperm contains an x or y chromosome
b)
whether the mother's egg contains an x or y chromosome
c)
the age of the parents
52.

Which chromosome contains more genes?

a)

The X chromosome

b)

The Y chromosome

c)

They are homologous, so they contain the same amount of genes.

53.

Males can be heterozygous for sex-linked traits.

a)

True

b)

False

54.

Muscular dystrophy is a sex-linked recessive disorder. A man with muscular dystrophy marries a woman who doesn’t have this disease. Half of their daughters and half of their sons develop this disease. What is the genotype of the mother?

a)

XNXN

b)

XNXn

c)

Xn

d)

XN

55.

A chart that displays family relationships indicating traits or disorders

a)

Punnett square

b)

Pedigree

c)

Karyotype chart

56.

In a pedigree chart, men are represented by

a)

Circles

b)

Diamonds

c)

Squares

57.

In a pedigree chart, women are represented by

a)

Circles

b)

Diamonds

c)

Squares

58.

In a pedigree, individuals that are carriers are represented as shapes that are

a)

Not shaded

b)

Fully shaded

c)

Half shaded

59.

In a pedigree, individuals that are affected are represented as shapes that are

a)

Not shaded

b)

Fully shaded

c)

Half shaded

60.

A codes for 6 fingers, a codes for 5. An individual with the genotype AA would have

a)

6 fingers and not be a carrier

b)

6 fingers and be a carrier

c)

5 fingers

61.

A codes for 6 fingers, a codes for 5. An individual with the genotype Aa would have

a)

6 fingers and be a carrier

b)

5 fingers

c)

6 fingers and not be a carrier

62.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
63.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
64.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
65.
Give the genotype for person III-3.
a)
GG
b)
Gg
c)
gg
d)
we cannot be 100% sure of the genotype
66.
Give the genotype for person II-1, for this autosomal trait.
a)
GG
b)
Gg
c)
gg
d)
we cannot be 100% sure of the genotype
67.
If hemophilia is a sex-linked recessive trait, what genotype would individual III-3 have?
a)
XbX
b)
XbXb
c)
XbYb
d)
XbY
68.
If a trait is more likely to appear in one sex over the other......
a)
the trait is probably sex-linked.
b)
the trait is probably autosomal.
c)
the trait is probably co-dominant
d)
the trait if probably incompletely dominant
69.
In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?
a)
0%
b)
25%
c)
75%
d)
100%
70.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4

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