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Inheritance Patterns

Total questions: 53

Worksheet time: 53mins

Name
Class
Date
1.

Passing on traits from parents to offspring

a)

Chromosome

b)

Genotype

c)

Heredity

d)

Allele

2.

The instruction of one allele covers up the instruction

of the other allele in a homologous pair. Symbolized by a capital letter.

a)

Recessive Allele

b)

Dominant Allele

c)

Heredity

d)

Trait

3.

The instructions of this allele are covered up by the other allele in a homologous pair. Symbolized by a small letter.

a)

Homozygous

b)

Dominant

c)

Recessive

d)

Genetics

4.

The letter symbols for both homologous alleles.

BB Bb bb AA Aa aa

a)

Genotype

b)

Phenotype

c)

Recessive

d)

Dominant

5.

The observable traits dictated by the genotype

a)

Phenotype

b)

Genotype

c)

Homozygous Recessive

d)

Homozygous Dominant

6.

During meiosis and gamete formation, homologous (paired up) alleles split up

a)

Phenotype

b)

Law of Segregation

c)

Genotype

d)

Dihybrid Cross

7.

During meiosis, the homologous pairs of chromosomes and the matching alleles are lined up independently.

Offspring are a mix of maternal genes and paternal genes.

This increases genetic variation.

a)

Homozygous Dominant

b)

Law of Segregation

c)

Crossing Over

d)

Independent Assortment

8.

The genetic cross between two parents for one trait:

Example BB x bb

B = dominant for brown

b = recessive for blue

a)

Incomplete Dominance

b)

Dihybrid Cross

c)

Monohybrid Cross

d)

Iron Cross

9.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
10.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
11.
If B = brown hair and b = blonde hair, what is the probability of brown hair?
a)
25%
b)
50%
c)
0%
d)
75%
12.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
13.
In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?
a)
It is BB.
b)
It is Bb
c)
It is brown
d)
It is bb.
14.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
15.
What percent of offspring will have the recessive trait?
a)
25
b)
50
c)
75
d)
100
16.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
17.
What is the probability of homozygous dominant offspring?
a)
0%
b)
100%
c)
50%
d)
25%
18.

The blending of two traits is known as ---

a)

incomplete dominance

b)

codominance

19.

A condition in which both alleles for a gene are expressed so that both traits are visible is known as ---

a)

Codominance

b)

Incomplete dominance

20.

What type of inheritance pattern is shown here?

a)

Codominance

b)

Incomplete dominance

21.

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

22.

This is an example of ---

a)

Incomplete dominance

b)

Codominance

23.

What does this Punnett square and the probabilities of the ofspring represent?

a)

incomplete dominance

b)

codominance

24.

What pattern of non-Mendelian inheritance is shown by ABO blood group?

a)

Codominance

b)

Incomplete Dominance

c)

Multiple Alleles

d)

X-linked

25.

If a person has type B blood, the phenotype is B. What can the genotype be?

a)

IBIB or IBi

b)

IAIA or IAi

c)

IAIB

d)

ii

26.

If a person has type A blood, the phenotype is A. What can the genotype be?

a)

IBIB or IBi

b)

IAIA or IAi

c)

IAIB

d)

ii

27.

If a person has type AB blood, the phenotype is AB. What can the genotype be?

a)

IBIB or IBi

b)

IAIA or IAi

c)

IAIB

d)

ii

28.

If a person has type O blood, the phenotype is O. What can the genotype be?

a)

IBIB or IBi

b)

IAIA or IAi

c)

IAIB

d)

ii

29.

if the father is type A and the mother is type B, in order for baby Sylvester to have the genotype ii, his parents must be?

a)

heterozygous

b)

homozygous

30.

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

31.

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 Y ?

a)

male with white eyes

b)

female with white eyes

c)

male with red eyes

d)

female with red eyes

32.

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

a)

male with red eyes

b)

female with red eyes

c)

male with white eyes

d)

female with white eyes

33.

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 Y ?

a)

male with red eyes

b)

female with red eyes

c)

male with white eyes

d)

female with white eyes

34.

What are the genotypes of these flies:


white eyed, male ?

a)

X R X r

b)

X R X R

c)

Xr X r

d)

X r Y

e)

XR Y

35.

What are the genotypes of these flies:


white eyed, female ?

a)

X R X r

b)

X R X R

c)

Xr X r

d)

X r Y

e)

X R Y

36.

Look at this cross: XBXb x XBY


What proportion of the male children are colorblind?

a)

100%

b)

75%

c)

50%

d)

25%

37.

H= normal blood clotting

h=hemophilia


XHXh x XHY


What is the probability that any of their offspring will have hemophilia?

a)

4/4

b)

3/4

c)

2/4

d)

1/4

38.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
39.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
40.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
41.
What does an open circle represent?
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
42.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
43.
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
44.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
45.
Which agricultural benefit can biotechnology  provide?
a)
developing plants that are less dependent on the sun for energy
b)
developing plants that are less sensitive to variations in environmental temperatures
c)
developing plants with inheritable traits unrelated to the genetic material they contain
d)
developing plants that will not die
46.
Which process uses a body cell to create a new organism?
a)
Crossbreeding 
b)
cloning 
c)
genetic modification 
d)
gene splicing 
47.
What is the purpose of PCR?
a)
To produce millions of copies of DNA.
b)
To produce millions of copies of a specific region of DNA
c)
To add nucleotides to a DNA sequence
d)
To watch polymerase work.
48.

This laboratory procedure is known as

a)

CLONING

b)

gel electrophoresis

c)

chromatography

d)

use of a dichotomous key

49.

In preparation for an electrophoresis procedure, enzymes are added to DNA in order to

a)

convert the DNA into gel

b)

cut the DNA into fragments

c)

change the color of the DNA

d)

produce longer sections of DNA

50.

A student performed a gel electrophoresis experiment. The results are represented in the diagram

below. Compared to the fragments at the top of the gel, the fragments at the lower end are

a)

larger, and move slower

b)

larger, and move faster

c)

smaller, and move faster

d)

smaller, and move slower

51.
Based on these results whose blood was found in the blood stain at the crime scene?
a)
Bob
b)
Sue
c)
John
d)
Lisa
52.
What is the purpose of gel electrophoresis?
a)
helps cut DNA
b)
count the genes in DNA
c)
separates DNA based on size
d)
allows for an exact replicated organism
53.
GMO stands for
a)
genetically made organism
b)
genetically modified organism
c)
gene manipulated organism
d)
Genetic mutant organism

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