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All Heredity Exit Tickets

Total questions: 42

Worksheet time: 1hrs 1mins

Name
Class
Date
1.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
2.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
3.

The genotype of the affected son and daughter at the bottom of this pedigree...

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

d)

Can't tell

4.
How many girls in this family express this recessive disorder?
a)
4
b)
5
c)
6
d)
7
5.

What is the genotype of both great-grandsons? (Individuals 13 and 16)

a)

AA

b)

Aa

c)

A_

d)

aa

6.
What is the genotype of the great-grandfather? (Individual 2)
a)
A_
b)
aa
c)
Aa
d)
AA
7.

In radishes, pure-breeding red radishes crossed with pure-breeding white radishes make purple radishes. What is the probability of getting white radish when you cross two purple radishes?

a)

1/4

b)

1/2

c)

3/4

d)

100%

8.

In snapdragons, flower color exhibits incomplete dominance. When crossed, red (RR) and white (WW) flowers make pink flowers (RW). Complete a cross between a pink flower and a red flower. Find the phenotype ratio.

a)

1 red: 1 pink

b)

4 red: 0 pink

c)

4 pink: 0 white

d)

1 pink: 1 white

9.

In humans, there are three phenotypes for hair--curly, wavy, and straight? Hair texture shows incomplete dominance. Suppose two people with wavy hair have a child. What is the probability the child will have straight hair?

a)

100%

b)

0%

c)

25%

d)

50%

10.

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%

11.
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
12.
The visual representation of an individual's chromosomes is a 
a)
phenotype
b)
genotype
c)
karyotype
d)
stereotype
13.
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
14.
When we say that a woman is a carrier for a genetic disease or disorder it means that
a)
she has 1 gene, but not the disorder
b)
she has 2 genes for the disorder
c)
she can pass the gene only to male children
d)
she can pass the gene only to female children
15.
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)
to be color-blind, all of your X chromosomes must have the gene
c)
color-blindness is caused by testosterone
d)
color-blindness is caused by the same gene as baldness
16.
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
17.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
18.

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

a)

Incomplete Dominance

b)

Codominance

c)

Independent assortment

d)

Recessive inheritance

19.

A roan cow shows codominance in fur color (red and white). What is the phenotypic ratio expected if a roan cow and a roan steer mate together?

a)

4 (Red + White)

b)

1:1 (Red: White)

c)

1:1 (Red: Red + White)

d)

1:2:1 (Red: Red + White: White)

20.

Some flowers are controlled by codominance. Red flowers (CRCR), blue flowers (CBCB), and red/blue speckled flowers (CBCR).


Cross a red flower with a speckled flower. What is the phenotypic ratio?

a)

1:1 (red:speckled)

b)

1:1 (red:blue)

c)

1:1 (blue:speckled)

d)

1:2:1 (red:speckled:blue)

21.

Some flowers are controlled by codominance. Red flowers (CRCR), blue flowers (CBCB), and red/blue speckled flowers (CBCR).


In a cross between two speckled flowers, what is the probability of getting a blue offspring?

a)

25%

b)

50%

c)

75%

d)

0%

22.

In cattle, red coats are represented as CRCR, and white coats are represented as CWCW.


What is the genotype for Roan color?

a)

CRCR

b)

CRCW

c)

CWCW

23.
When does crossing over occur?
a)
Interphase
b)
Prophase 1
c)
Prophase 2
d)
Metaphase 1
24.

If a stem cell (body cell) has 24 chromosomes, how many will it have at the end of meiosis?

a)

24

b)

12

c)

6

d)

the number varies per species

25.

Meiosis results in ______.

a)

4 genetically unique haploid gametes

b)

4 genetically unique diploid cells

c)

2 genetically identical cells

d)

4 genetically identical cells

26.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
27.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad
b)
triad
c)
diploid
d)
gamete
28.
What phase is  shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
29.

Two processes that increase genetic variation during meiosis are crossing over and _____

a)

Synapsis

b)

Tetrad

c)

Independent assortment

d)

Gameiosis

30.

A haploid cell has

a)

three sets of chromosomes

b)

one set of chromosomes

c)

two sets of chromosomes

d)

four sets of chromosomes

31.
Human eggs and sperm are _____, and each has ____ chromosomes.
a)
diploid, 23
b)
diploid, 46
c)
haploid, 23
d)
haploid, 46
32.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
33.
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
34.

What is one of the advantages of reproducing sexually versus asexually?

a)

underproduction of offspring

b)

overproduction of offspring

c)

genetic variation

d)

artificial selection

35.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
36.
Identify the phase.
a)
Telophase I
b)
Telophase II
c)
Metaphase I
d)
Metaphase II
37.

Haploid cells are represented by

a)

2n

b)

n

c)

1/2 n

d)

4n

38.
Chiasmata are what we see under a microscope that let us know which of the following is occurring?
a)
Crossing over
b)
Anaphase II
c)
Meiosis II
d)
e. Separation of homologs
39.

The organelle located within centrosome region of animal cells; aids in spindle fiber formation

a)

Chromatid

b)

Centriole

c)

Centromere

d)

Centrosome

40.

Height, intelligence and skin color are examples of ______________ because they are controlled by many genes.

a)

epistasis

b)

polygenic traits

c)

incomplete dominance

d)

pleiotropy

41.

________________________ is when a single gene mutation affects two or more traits.

a)

Epistasis

b)

Polygenic inheritance

c)

Codominance

d)

Pleiotropy

42.

When a gene at one location controls the expression of a gene at a separate location, it is called __________________.

a)

epistasis

b)

polygenic inheritance

c)

pleiotropy

d)

incomplete dominance

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