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Honors Genetics 2019

Total questions: 62

Worksheet time: 58mins

Name
Class
Date
1.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
2.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
3.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
4.

The outward appearance (gene expression) of a trait in an organism is referred to as

a)

genotype

b)

an allele

c)

phenotype

d)

independent assortment

5.

What law is demonstrated by this 9:3:3:1

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independant Assortment

6.

A white-flowered plant is crossed with a pink-flowered plant. All of the F1 offspring from the cross are white.

Which of Mendel's Laws is/are illustrated in this question?

a)

law of Segregration

b)

law of Dominance

c)

law in independent assortment

7.
Two of the same alleles for a trait: 
a)
heterozygous
b)
homozygous
8.
Two different alleles for a trait: 
a)
heterozygous
b)
homozygous
9.
An alternative form of a gene
a)
genome
b)
allele
c)
dominant
d)
recessive
10.
What is another name for "true breeding?"
a)
Heterozygous
b)
Purebred
c)
Hybrid
d)
Cross Pollinating
11.
Gregor Mendel's "P" Generation consisted of plants which were ______________ with opposite traits.
a)
Purebred
b)
Hybrid
c)
Heterozygous
d)
Incompletely Dominant
12.
All offspring plants in the F1 generation were purple because purple is the ______________ trait.
a)
Heterozygous
b)
Homozygous
c)
Dominant
d)
Recessive
13.
Which of Mendel's laws states that alleles are separated during meiosis?
a)
Law of Dominance
b)
Law of Segregation
c)
Law of Independent Assortment
d)
Law of Meiosis
14.
Which of Mendel's laws states that alleles are distributed to gametes independent of one another?
a)
Law of Dominance
b)
Law of Segregation
c)
Law of Independent Assortment
d)
Law of Meiosis
15.

Find the gametes for this parent: TtRR

a)

TR, TR, tR, tR

b)

TR, Tr, tR, tr

c)

Tt, RR, TR, tR

d)

Tr, TR, tR, TR

16.

Objective 10

What does the top and left of a punnett square (the grey highlighted area) represent

a)

the parents' gametes (sex cells)

b)

the possible future kids

17.

Objective 10

What do the boxes of a punnett square (the white part) represent?

a)

the parents' gametes (sex cells)

b)

the possible future offspring

18.

Objective 11

What would the genotype of box 1 be?

a)

EeRR

b)

EeRr

c)

EERR

d)

eeRr

19.

Objective 12

What is the phenotypic ratio for this cross?

a)

16:0:0:0

b)

4:4:4:4

c)

6:6:2:2

d)

9:3:3:1

20.
How many traits are involved in a dihybrid cross?
a)
2
b)
4
c)
1
d)
16
21.
How many boxes does a Punnet Square need for a dihybrid cross?
a)
4
b)
8
c)
16
d)
32
22.
A genotype is
a)
a combination of alleles present in an organism
b)
a person's traits
c)
the physical appearance of an organism 
d)
made with 4 boxes
23.
We use Punnet Squares to predict
a)
alleles
b)
probability of a genotype occurring
c)
phenotypes
d)
the future
24.
What is the memory device to help create gametes/allele combinations in a dihybrid cross?
a)
"FARM"
b)
"FOIL"
c)
"MONO"
d)
"FIRE"
25.
Squid ward is dominant homozygous for both blue color (B) and a big nose (N).  What is his genotype?
a)
BbNn
b)
bbnn
c)
BBNN
d)
bbNn
26.
If Patrick is genotype PpNn, what are the 4 possible gametes/allele combinations that could be crossed? 
a)
Pp, Nn, PP, NN
b)
PpNn, PPNn, PPNN, PPnn
c)
PN, Pn, pN, pn
d)
PP, NN, nn, pp
27.

When one allele is not dominant over another, resulting in a blended phenotype for heterozygous offspring is considered....

a)

Incomplete Dominance

b)

Codominance

28.

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....

a)

Incomplete Dominance

b)

Codominance

29.

In cattle red coats are represented as RR, and white coats are represented as WW.


What is the genotype for Roan color?

a)

RR

b)

RW

c)

WW

30.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
31.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
32.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
33.
If you cross a black chicken with a white chicken, only checkered chickens would be produced.  What kind of inheritance pattern does this follow?
a)
incomplete Dominance
b)
Co-Dominance
34.
Jim has type AB+ blood. His dad could be type O+.
a)
True
b)
False
35.
If one of your parents is blood type A and the other is type B, which of the following blood types is possible?
a)
O
b)
AB
c)
A or B
d)
Any
36.
What are the blood types of the possible children that a woman (type O) and man (type AB) can have?
a)
O and AB
b)
O and A
c)
O and B
d)
A and B
37.
Blood type is determined by the antigens.
a)
True
b)
False
38.
Someone who has Type O blood has what for antibodies (clumping proteins)?
a)
No antibodies
b)
A antibodies
c)
B antibodies
d)
A and B antibodies
39.
Universal blood donors have type ______ blood.
a)
A
b)
AB
c)
B
d)
O
40.
Which blood type is he universal recipient (a person with this blood type can get blood from any other type)?
a)
O
b)
AB
c)
A
d)
B
41.
Would a person with type B blood be able to receive type AB blood from a transfusion?
a)
yes, because they both have the B antigen
b)
yes, because the person has B antibodies
c)
no, because the person has A antibodies
d)
no, because the person has B antibodies
42.
Why is the gene for a disease or disorder more likely to be found on the X chromosome than Y?
a)
The X chromosome has many more genes
b)
The Y chromosome has many more genes
43.
Males are more likely to suffer from a sex-linked disease or disorder because
a)
males are the weaker sex
b)
males have less DNA
c)
males have 1 X chromosome, so the disorder is more likely to be expressed
44.

When we say that a woman is a carrier for a genetic disease or disorder it means that

a)

she has 1 allele, but not the disorder

b)

she has 2 allele for the disorder

c)

she can pass the allele only to male children

d)

she can pass the allele only to female children

45.
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
46.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
47.

If a woman is a carrier for a sex linked recessive trait of hemophilia and her husband has hemophilia, which of the following is true? Make a punnett square!

a)

All sons will have hemophilia

b)

all daughters will have hemophilia

c)

50% of daughters and 50% of sons have hemophilia

d)

100% of sons have hemophilia and 100% of daughters are carriers

48.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
49.
What type of inheritance is determined by multiple genes located at different loci on different chromosomes and there can be a range of traits?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
50.
An example of polygenic inheritance is...
a)
Skin Color
b)
hitch hikers thumb
c)
blood types
51.

The pattern of inheritance in which there are three or more possible alleles for a trait is

a)

Incomplete dominance

b)

Codominance

c)

Polygenic Inheritance

d)

Multiple Alleles

52.
A couple has two children, both of whom are boys. What is the chance that the parents' next child will be a boy?
a)
0%
b)
50%
c)
25%
d)
75%
53.
The type of inheritance shown when a red-flowered plant is crossed with a white-flowered plant and only pink flowers are produced is _____.
a)
inbreeding
b)
incomplete dominance
c)
polygenic inheritance
d)
multiple alleles
54.
If two checkered chicks (BW) are crossed, what are the offspring?
a)
100% checkered
b)
50% white, 50% black
c)
25% white, 50% checkered, 25% black
d)
100% grey
55.

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

a)

pedigree

b)

Punnett Square

c)

Venn Diagram

d)

Karyotype

56.
Which sex chromosomes would indicate a typical human male?
a)
XX
b)
X
c)
XY
d)
XXY
57.
What is the gender of the individual whose karyotype is seen in the image?
a)
Male
b)
Female
58.
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
a)
sister chromotids
b)
centromeres
c)
homologous chromosomes
d)
autosomes
59.

Monosomy:

a)

Missing 1 chromosome

b)

3 chromosomes (instead of a pair)

c)

Chromosomes are normal

60.

Trisomy:

a)

Missing 1 chromosome

b)

3 chromosomes (instead of a pair)

c)

Chromosomes are normal

61.

Nondisjunction can result in

a)

trisomy conditions

b)

monosomy conditions

c)

additional sex chromosomes

d)

all of these

62.

Chromosome pairs 1-22 are referred to as

a)

sex chromosomes

b)

sister chromatids

c)

a karyotype

d)

autsomes

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