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11U Genetics Review

Total questions: 50

Worksheet time: 44mins

Name
Class
Date
1.
An organism's phenotype describes its __________.
a)
genetic makeup
b)
physical appearance
2.
What do you call a section of DNA that codes for a specific trait?
a)
nucleus
b)
chromosome
c)
gene
d)
DNA
3.
How many chromosomes are found in human egg and sperm cells?
a)
20
b)
23
c)
26
d)
46
4.
A dominant trait shows up __________.
a)
only when two dominant alleles are present
b)
only when one dominant allele is present
c)
when at least one recessive allele is present
d)
when at least one dominant allele is present
5.
If you cross two parents, both with genotype Bb, what percentage of children will have brown eyes?
a)
25%
b)
50%
c)
75%
d)
100%
6.
Plant height is T = tall and t = short. Flower color is P = purple and p = white. Which genotype is NOT possible for a tall plant with purple flowers?
a)
TtPp
b)
TTPP
c)
TTPp
d)
ttpp
7.
What are traits that aren't dominant over each other but whose heterozygous outcome is a combination of the two equally but separately?
a)
pure dominance
b)
incomplete dominance
c)
co-dominance
d)
simple dominance
8.
Who was the father of genetics?
a)
Mendel
b)
Einstein
c)
Redi
d)
Pasteur
9.
If there is a cross of a red and white chicken, and the trait is co-dominant, what will be the result?
a)
a blended color
b)
a speckled chicken
10.
If red and white have incomplete dominance for a trait, and a red flower is crossed with  a white flower, what will be the result?
a)
a spoted flower
b)
a blended flower
11.

Different forms of a gene are called _____________.

a)

heterozygous

b)

genotypes

c)

alleles

d)

chromosomes

12.

The set of genes an organism carries.

a)

phenotype

b)

genotype

c)

heterotype

d)

homotype

13.

If an organism has 15 chromosomes in its sex cells, how many chromosomes does it have?

a)

15

b)

30

c)

10

d)

45

14.

If a blue bird mates with a red bird and the offspring is purple, what type of dominance is true?

a)

blue is dominant

b)

co-dominance

c)

incomplete dominance

d)

red is dominant

15.

If a yellow pea plant is dominant to green, what percent of the offspring would be green if a hybrid yellow plant is crossed with a green plant?

a)

25%

b)

50%

c)

75%

d)

100%

16.

If purple flowers are dominant to white flowers, what cross would produce 25% white flowers?

a)

PP x pp

b)

PP X Pp

c)

Pp x pp

d)

Pp x Pp

17.

If white and black are co-dominant in chickens, what cross would produce the most speckled chickens?

a)

WW x BW

b)

BB x BW

c)

BB X WW

d)

BW x BW

18.

DNA is a ________________ found in the ________________.

a)

double helix, cytoplasm

b)

single helix, nucleus

c)

double helix, nucleus

d)

single helix, cytoplasm

19.
During interphase the cell ___________.
a)
divides into two cells
b)
divides its nucleus
c)
replicates its DNA
d)
replicates the organelles within the cell
20.
The cell cycle is ______________.
a)
the process of cells circling throughout the body
b)
the process of splitting the organelles
c)
a process where one cell gets energy
d)
the sequence of stages of growth and division that a cell undergoes
21.
After interphase is completed the cell moves into the next stage of the cell cycle called _________.
a)
anaphase
b)
cytokinesis
c)
metaphase
d)
mitosis
22.
The following describes __________ during mitosis. The chromatin condenses and spindle fibers form at each side of the cell. The nuclear membrane breaks apart.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
23.
The following describes ________  during mitosis. The chromosomes line up along the center of the cell and the spindle fibers attach to each chromosome at the centromere.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
24.
The following describes _________ during mitosis. The spindle fiber splits the centromere and the chromatids move to opposite sides of the cell.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
25.

What stage of mitosis is depicted here

a)

Prophase

b)

Anaphase

c)

Telophase

d)

Metaphase

26.

What stage of mitosis is depicted here

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

27.

What stage of mitosis is depicted here

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

28.
This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?
a)
segregation of sister chromatids
b)
condensation and segregation of alleles
c)
mutationin which the DNA content of the gene is altered
d)
crossing - over in which alleles are exchanged
29.
What phase is shown here?
a)
Prophase II
b)
Metaphase I
c)
Metaphase II
d)
Anaphase I
30.
What phase is shown here?
a)
Metaphase II
b)
Telophase I
c)
Telophase II
d)
Metaphase I
31.
What phase is shown here?
a)
Anaphase I
b)
Prophase I
c)
Metaphase II
d)
 Metaphase I
32.
What phase is this?
a)
Interphase II
b)
Prophase I
c)
Metaphase I
d)
Anaphase II
33.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
34.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
35.
Which statement correctly describes meiosis?
a)
cells divide only once
b)
meiosis does not occur in reproductive cells
c)
the cells produced at the end of meiosis are genetically identical to the parent cell
d)
The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell
36.
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%
37.
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%
38.
Universal blood donors have type ______ blood.
a)
A
b)
AB
c)
B
d)
O
39.
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
40.

Which of the following codes for blood type O?

a)

IA IA

b)

IB i

c)

IA IB

d)

ii

41.

What is Mendel's Law of Independent Assortment?

a)

If the recessive allele is passed for one trait, then it is more likely that the recessive allele will be passed for the other trait.

b)

The passing of allele of one trait does not affect the passing of allele of another trait.

c)

If the dominant allele is passed for one trait, then it is more likely that the dominant allele will be passed for the other trait.

d)

If the dominant allele is passed for one trait, then it is more likely that the recessive allele will be passed for the other trait.

42.

Mendel's Law of Segregation means?

a)

Every person has two alleles for each trait, they segregate from each other and the dominant is passed more often.

b)

Every person has two alleles for each trait, Where two traits are being passed, they do not effect each other.

c)

Every person has two alleles for each trait, they segregate from each other and are passed down at random.

d)

Every person has two alleles for each trait, they segregate from each other and the recessive is passed more often.

43.

To discover whether an animal showing the dominant trait is homozygous or heterozygous, it must be crossed with an animal that is:

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

d)

choices B & C

44.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
45.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
46.
What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
47.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
48.
This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?
a)
8
b)
5
c)
2
d)
3
49.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
50.
If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above

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