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Laws of Heredity Quiz

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

(2) Different versions or forms of the same gene are called -

a)

phenotype

b)

genotype

c)
nitrogen bases
d)
alleles
2.

(4) Which statement best supports why many offspring look similar to their parents?

a)
Offspring inherit characteristics from one parent.
b)
Offspring inherit characteristics from both parents.
c)
Parents choose which characteristics to pass on to their offspring.
d)
Parents choose to change their appearance to match that of their offspring.
3.

(2) What is a dominant allele?

a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
4.

(2) What is a recessive allele?

a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
5.

(2) The passing of DNA from parents to offspring

a)
Generation
b)
Heredity
c)
Inheritance
d)
Traits
6.

(4) Round face is dominant to oval face. The following genotype will result in which phenotype? ff

a)
round 
b)
oval 
c)
square
7.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
8.

(3) Which of the following is homozygous recessive?

a)
Tt
b)
tt
c)
TT
d)
T
9.

(3) Which of the following is homozygous dominant?

a)

Yy

b)

Y

c)

yy

d)

YY

10.

(3) What is Bb?

a)
Homozygous
b)
Heterozygous
c)
Recessive
d)
Alleles
11.

(3) What are the two genotypes that show the DOMINANT Phenotype

a)
GG, gg
b)
GG, Gg
c)
Gg, gg
12.

(3) What is the only Genotype that shows the RECESSIVE Phenotype?

a)
GG
b)
Gg
c)
gg
13.

(2) The physical appearance of an organism based on traits

a)
Genotype
b)
Phenotype
c)
Meiosis
d)
Genetics
14.

(2) Hair color is an example of

a)
genotype
b)
phenotype
15.

(4) The genotype of:  bb   will have the PHENOTYPE of...

a)
black fur
b)
white fur
c)
course hair
d)
fine hair
16.

(3) Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's genotype?

a)
BB
b)
bb
c)
Bb
d)
bB
17.

(3) Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype?

a)
Brown Hair
b)
Blonde Hair
c)
Brown and Blonde Hair
d)
Black Hair
18.

(2) The two-letter code that describes the genetic traits of an organism is called a-

a)
Phenotype
b)
Genotype
c)
Physical Appearance
d)
Intelligence
19.

(3) Which of the following is a phenotype?

a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
20.

(2) How tall you are is an example of

a)
genotype
b)
phenotype