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End of Lesson Review : Inheritance

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.

What's the probability an offspring will have the dominant Brown Eyes in this Punnett Square

a)

25%

b)

50%

c)

75%

d)

100%

2.
Where is all the genetic information in a cell?
a)
Nucleus
b)
Nucleotides
c)
Chromosomes
d)
Cytoplasm
3.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
4.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup 
c)
Alleles acquired from a specific parent.
5.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
6.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
7.
An allele whose trait always shows up in the organism when the allele is present.
a)
recessive allele
b)
dominant allele
c)
hidden allele
d)
present allele
8.
Variations of a trait are __________________.
a)
genes
b)
chromosomes
c)
hybrids
d)
alleles
9.

Who was the scientist that studied pea plants to determine heredity?

a)

Rosalind Franklin

b)

Leroy Jethro Gibbs

c)

Gregor Mendel

d)

James Watson

10.

What is a genotype?

a)

the observable trait of an individual (ex. Blue eyes)

b)

the genetic makeup of an individual (ex. Bb)

c)

an inherited characteristic

d)

the study of genetics

11.

What combination represents a "heterozygous" genotype?

a)

TT

b)

tt

c)

Tt

12.

Which of the following represents a "homozygous recessive" genotype?

a)

TT

b)

tt

c)

Tt

13.

Which of the following would be considered "heterozygous"?

a)

Do, Re, Mi, Fa

b)

GG, Gg, Tt, ee

c)

rr, ee, tt, AA

d)

Tt, Yy, Rr

14.

Brown eye color is dominant. Blue eye color is recessive. Select the combination of letters below that would represent a person being a purebred for brown eyes. In other words, which option represents a person having both alleles for brown eyes? (hint: think of capitalization of letters and what is used for dominant vs. recessive).

a)

AA

b)

Aa

c)

aa

d)

aA

16.
A single piece of coiled DNA found in the cells; contains genes that encode traits.
a)
gene
b)
chromosome
c)
trait
d)
DNA
16.
A single piece of coiled DNA found in the cells; contains genes that encode traits.
a)
gene
b)
chromosome
c)
trait
d)
DNA
17.

Diagram that helps predict what traits or alleles babies will have.

a)

Inheritance

b)

Allele

c)

Punnett Square

d)

Trait

18.

Quality or characteristic someone has.

a)

Inheritance

b)

Allele

c)

Punnett Square

d)

Trait

19.

how a trait looks; physical appearance

a)

genotype

b)

phenotype

c)

heterozygous

d)

homozygous

20.

genetic make up; in a person's genes

a)

genotype

b)

phenotype

c)

allele

d)

trait

21.

Diagram that hows a trait's history in a family.

a)

punnett square

b)

dominant

c)

recessive

d)

pedigree chart

22.
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
a)
rr
b)
R
c)
RR
d)
RR or Rr
23.

In a pedigree chart, men are represented by

a)

Circles

b)

Diamonds

c)

Squares

24.

How many alleles does a person carry for a trait?

a)

1

b)

2

c)

3

d)

4

25.
What do we use pedigrees for?
a)
To look at families
b)
To make determinations about the offspring
c)
To track traits in families
d)
Nothing
26.

Which gender has an X and a Y chromosome?

a)

male

b)

female

28.

In order for the recessive trait to show, the individual must hold two recessive alleles for that trait.

a)

True

b)

False

28.

In order for the recessive trait to show, the individual must hold two recessive alleles for that trait.

a)

True

b)

False

29.
Of 12 hamsters just born, 9 have brown fur and 3 have white fur. The trait for white fur is considered to be ________.
a)
recessive
b)
weak
c)
strong
d)
dominant
30.
 Gregor Mendel developed some basic principles of heredity by ______________.
a)
breeding fruit flies
b)
cutting off the tails of mice
c)
crossing pea plants
d)
growing bacteria in a laboratory
31.
How many of the males in this pedigree show the trait being studied?
a)
2
b)
3
c)
4
d)
6
32.
 Look at the Punnett square. If the two parents represented in the Punnett square have four offspring, what does the Punnett square tells you?
a)
two of the offspring will definitely be heterozygous.  
b)
one of the offspring will definitely show the recessive trait.
c)
there is a 50% chance for each of the 4 offspring to have the genotype Rr.
d)
there is a greater chance for the offspring to be RR than rr.
33.
What is cross pollination?
a)
When pollen from a flower fertilizes itself or another flower on the same plant
b)
When pollen from one flower fertilizes a flower on a different plant
c)
A plant whose offspring share the same traits as the parent
d)
A plant whose offspring is genetically different from the parent.
34.
What is true-breeding?
a)
When pollen from a flower fertilizes itself or another flower on the same plant
b)
When pollen from one flower fertilizes a flower on a different plant
c)
A plant whose offspring share the same traits as the parent
d)
A plant whose offspring is genetically different from the parent.
35.
If you cross two heterozygous traits (Rr x Rr), as Mendel did in his second experiment, what ratio will you get between offspring with the dominant and recessive phenotypes
a)
1:1
b)
2:1
c)
3:1
d)
4:1
36.
Which of the following genotypes is homozygous recessive?
a)
RR
b)
Rr
c)
rr
d)
None of the Above
37.

What is the scientific study of heredity?

a)

Genetics

b)

Epistemology

c)

Pathology

d)

Podiatry

38.

Organisms with 2 different alleles for a trait is known as...

a)

Dominant

b)

Recessive

c)

Homozygous

d)

Hybrid

39.
Gregor Mendel is known as the:
a)
Father of Genetics
b)
Father of Heredity
c)
Father of Pea Plants
d)
Father of the Punnett Square
40.

What is heredity?

a)

The passing of traits from parent to offspring.

b)

A family tree that shows the relationships between an organism and its ancestors.

c)

A diagram that is used to predict the genotypes of offspring produced by two parents.

d)

A notable feature or characteristic of an organism.

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