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Mendel and Heredity

Total questions: 35

Worksheet time: 24mins

Name
Class
Date
1.
A trait that is expressed over other traits.
a)
Recessive
b)
Co-dominant
c)
Incomplete Dominant
d)
Dominant
2.
A trait that is not expressed when a dominant allele is present.
a)
Recessive
b)
Co-dominant
c)
Incomplete Dominant
d)
Dominant
3.
The combination of alleles.
a)
DNA
b)
Phenotype
c)
Genotype
d)
Genetics
4.
The physical or behavioral appearance of a trait
a)
Phenotype
b)
DNA
c)
Genotype
d)
Genetics
5.
Two or more combinations of the same gene
a)
Gene
b)
Genotype
c)
Phenotype
d)
Alleles
6.

The likelihood that a specific event will occur:

a)

accountability

b)

dominant

c)

probability

d)

recessive

7.

When the two alleles of a particular gene are different:

a)

heterozygous

b)

homozygous

c)

genotype

d)

phenotype

8.

The set of alleles that an individual has:

a)

heterozygous

b)

phenotype

c)

homozygous

d)

genotype

9.

A diagram used to predict the outcomes of a genetic cross:

a)

karyotype

b)

Punnett Square

c)

Pedigree

d)

Venn diagram

10.

A version of a gene:

a)

allele

b)

trait

c)

character

d)

generation

11.

When the two alleles of a particular gene are the same:

a)

homozygous

b)

genotype

c)

heterozygous

d)

phenotype

12.

Known as the father of modern genetics:

a)

Watson

b)

Crick

c)

Darwin

d)

Mendel

13.

Dominant alleles are represented with a:

a)

capital letter

b)

lower case letter

c)

shape

d)

symbol

14.

The passing of genetic traits from parents to offspring:

a)

geneology

b)

heredity

c)

cellology

d)

physiology

15.
T3 - Which of the following genotypes is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
16.

Which of the following genotypes is heterozygous?

a)

Tt

b)

tt

c)

TT

d)

T

17.

Which of the following genotypes is homozygous (2 answers)

a)

TT

b)

Tt

c)

T

d)

tt

18.

Which of the following genotypes is homozygous dominant?

a)

tt

b)

T

c)

TT

d)

Tt

19.
Study of how traits are inherited 
a)
Traits
b)
Genetics
c)
DNA
d)
Chromosomes
20.
A Punnett Square is a tool that predicts the possible traits of offspring.
a)
True
b)
False
21.
A quality or characteristic
a)
Gene
b)
Trait
c)
DNA
d)
Chromosome
22.
Probability is the likelihood of an occurrence
a)
True
b)
False 
23.
A segment of DNA that determines a particular trait
a)
Gene
b)
Mutation
c)
Purebred
d)
Chromosomes
24.
DNA is damaged or changed
a)
Mutation
b)
Recessive
c)
Inherited
d)
Meiosis
25.
Coiled up DNA forms X shaped structures called
a)
DNA Coils
b)
Chargraffs
c)
Chromosomes
d)
Alleles
26.
An Organism's physical appearance is its
a)
Genotype
b)
Phenotype
c)
Chromosome
d)
Allele
27.
Genotype is 
a)
The number of Chromosomes
b)
Physical apperance determined by the alleles
c)
Number genes
d)
The particular alleles or letter combination
28.
Select the answer that shows only Phenotypes.
a)
Gg, Green
b)
DD, Ff
c)
Tall, Blue
d)
Ss, Square
29.
Human Sex Cells (Eggs and Sperm) have ____ number of chromosomes.
a)
46
b)
92
c)
23
d)
4
30.
AA
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
31.
rr
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
32.
Tt
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
33.
The recessive allele uses a _________ letter.
a)
Lower case
b)
Upper case
c)
Italic
d)
Bold
34.

Select the answer that shows only Phenotypes.

a)

Brown hair, red hair

b)

hh

c)

HH

d)

Hh

35.

Select all the genotypes

a)

wavy hair, straight hair

b)

green eyes, hazel eyes

c)

Bb

d)

bb

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