Test: Heredity
For
Description: Vocabulary Test on Mendelian Heredity
Subject: Science
Subtopic: Biology
Topic: Genetics
Grade: 8
Instructions: Answer all questions to get your test result.

Question 1 of 10
Different forms of a gene are called
 


recessive factors


dominant factors


alleles


hybrids
Question 2 of 10
Organisms that have two identical alleles for a particular trait are said to be
 


hybrid


dominant


heterozygous


homozygous
Question 3 of 10
A Punnett square is used to determine the
 


result of meiosis


result of incomplete dominance


probable outcome of a cross


actual outcome of a cross
Question 4 of 10
The physical characteristics of an organism are called its
 


genotype


heredity


genetics


phenotype
Question 5 of 10
Organisms that have two different alleles for a particular trait are said to be
 


homozygous


recessive


dominant


heterozygous
Question 6 of 10
The genetic makeup which represents the genes (TT, Tt, and tt) is called the
 


phenotype


inheritance


heredity


genotype
Question 7 of 10
The allele that is expressed when two different alleles are present is said to be
 


hybrid


dominant


recessive


homozygous
Question 8 of 10
An allele that is expressed only when two copies of it are present is said to be
 


recessive


heterozygous


hybrid


dominant
Question 9 of 10
In Mendelian genetics the phenotypic ratio of a monohybrid cross is always
 


1:2:1


4:0


3:1


not always known
Question 10 of 10
In Mendelian genetics the genotypic ratio of a monohybrid cross is always
 


not always know


4:0


1:2:1


3:1