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Genetics.

Total questions: 44

Worksheet time: 4hrs 40mins

Name
Class
Date
1.

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

a)

pedigree

b)

Punnett Square

c)

Venn Diagram

d)

Karyotype

2.
Which sex chromosomes would indicate a typical human male?
a)
XX
b)
X
c)
XY
d)
XXY
3.
What is the gender of the individual whose karyotype is seen in the image?
a)
Male
b)
Female
4.

You are viewing a patients karyotype. You see 23 chromosomes total. There are no homologous chromosomes. Which type of cell are you viewing?

a)

Egg cell

b)

Zygote

c)

Skin cell

d)

White blood cell

5.

Based on the karyotype, what is the sex of this baby?

a)

Male

b)

Female

6.
Is this Karyotype human?
a)
Yes
b)
No
c)
Impossible to Determine
7.
Which structure is labeled as A in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
8.
Which structure is labeled as C in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
9.
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
10.
Which would be considered a somatic cell?
a)
Sperm cell
b)
Egg Cell
c)
Skin Cell
d)
All of these
11.

If the Diploid number for carrots is 18, the haploid number is

a)

18

b)

9

c)

27

d)

36

12.
The union of egg and sperm to form a new offspring is
a)
zygote
b)
fertilization
c)
homologous pairing
d)
meiosis
13.
The haploid number of human chromosomes is
a)
11
b)
12
c)
23
d)
46
14.

This law describes how each homologous pair separates independently of any other pairs during Anaphase I of meiosis

a)

Law of Segregation

b)

Law of Independent Assortment

c)

Law of Gravity

d)

Law of Mathematical Order

15.
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
16.
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
17.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be 
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
18.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
19.
Color Blindness is a sex linked disease.  Therefore, it HAS to affect which pair of chromosomes?
a)
21
b)
23
c)
24
d)
1-22
20.
Freckles (F) are dominant over nonfreckles.   What is the phenotype of individual #3
a)
Ff
b)
ff
c)
freckles 
d)
nonfreckles 
21.
In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?
a)
Tall = T
Short = S
b)
Tall = T
Short = t
c)
Tall = t
Short = T
d)
Tall = TT
Short = tt
22.
Jabba the Hutt has finally decided to settle down and have a family. He has undergone genetic testing and learned that he is heterozygous for Hutt Fungal Syndrome, which is caused by recessive alleles. He is worried that his children might suffer from this syndrome. His Hutt mate has undergone genetic testing and discovered she is homozygous dominant for the syndrome. Should Jabba be worried?
a)
Yes
b)
No
23.
A brown-furred ewok has 12 babies with a black-furred ewok. 9 ewok babies have black fur, while 3 ewok babies have brown fur. What are the probable genotypes of the parents?
a)
BB and bb
b)
BB and Bb
c)
Bb and Bb
d)
Bb and bb
24.
Identify the homozygous dominant genotype:
a)
FF
b)
Ff
c)
ff
25.
What phenotype would result from crossing a homozygous dominant purple-flowered pea plant with a homozygous recessive white-flowered pea plant?
a)
Pp
b)
Purple
c)
White
d)
PP and pp
26.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
27.
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
28.

An organism is a hybrid genotype (Tt) but is appears tall instead of short.

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

29.

If your genotype is Bb, then you can only pass a B or b to your child but you can't pass both.

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

30.

Person A is smart and has brown hair while Person B is also smart but has blonde hair.

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

31.

If a dominant allele is present, the trait will always appear in the organism.

a)

Law of Segregation

b)

Law of Dominance

c)

Law of Independent Assortment

32.

The image is showing two possible ways non-homologous chromosomes may line up during metaphase 1 of meiosis 1. Which of Mendel's laws is this image depicting?

a)

Mendel's Law of dominance

b)

Mendel's Law of recessive

c)

Mendel's Law of random assortment

d)

Mendel's Law of Independent Assortment

33.
Which of the following is purebred?
a)
AA
b)
oo
c)
Ao
d)
Both AA and oo
34.
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%
35.
If two parents are heterozygous for type A blood, what is the probability that their offspring would have type O blood?
a)
100 %
b)
75%
c)
50%
d)
25%
36.

if a person has an A phenotype what could be the genotype

a)

AA

b)

BO

c)

AO

d)

OO

37.

A father is heterozygous for his type A blood and a mother is heterozygous for her type B blood. What percentage of their offspring would you expect to have?

a)

50% all blood types

b)

25% Type A, 50% Type B, 25% Type O

c)

50% Type A, 50% Type B

d)

Type A 25%, Type B 25%, Type AB 25%, Type O 25%

38.
What is a series of events a cell goes through as they grow and divide?
a)
Cell Division
b)
Cell Cycle
c)
Cytokinesis
d)
Mitosis
39.
During what stage does the G1, S and G2 phases happen?
a)
Interphase
b)
M phase
c)
Mitosis
d)
Cytokinesis
40.
During what phase of the cell cycle is DNA replicated?
a)
G1 phase
b)
S phase
c)
G2 phase
d)
M phase
41.
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
a)
In order for genetic information to be transferred into daughter cells.
b)
In order for the cell to be able to increase in size.
c)
In order for the DNA to be contained in the nucleus.
d)
In order for the cell to re-order the DNA sequencing in the new cells.
42.

An organism's reproductive cells, or sex cells, are called _____.

a)

bacteria

b)

prokaryotes

c)

gametes

d)

pathogens

43.

The two sister chromatids are attached to each other at a point called the __________ of a chromosome.

a)

zygote

b)

autosome

c)

gene

d)

centromere

44.

Chromosomes that are paired by size and content are called _______ chromosomes.

a)

homeostasis

b)

homologous

c)

matching

d)

sister

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