WorksheetsB-Heredity
Total questions: 30
Worksheet time: 18mins
Name
Class
Date
1.
This is the passing of traits from parents to offspring.
a)
Hybrid
b)
Heredity
c)
Traits
d)
Recessive
2.
The Physical characteristics of an organism that we can observe or see.
a)
Alleles
b)
Genes
c)
Genotype
d)
Phenotype
3.
An allele that is masked or covered up by the presence of a dominant allele?
a)
Recessive Allele
b)
Dominant Allele
c)
Hybrid Allele
d)
Purebred Allele
4.
An organism that has two different alleles for a trait.
a)
Purebred
b)
Hybrid
c)
Dominant
d)
Recessive
5.
An allele that ALWAYS shows up in the organism when it is present.
a)
Purebred
b)
Hybrid
c)
Dominant
d)
Recessive
6.
Factors that control Traits, or two legs of my pants.
a)
Genes
b)
Alleles
c)
Hybrid
d)
Homozygous
7.
The scientific study of heredity.
a)
Mendel
b)
Genetics
c)
Traits
d)
Recessive
8.
When a pea plant has two dominant alleles for tall stems, its alleles are written as _______ .
a)
Tt
b)
tT
c)
tt
d)
TT
9.
How many alleles are given to an organism from each parent for each trait that are controlled by a single Gene?
a)
All of them
b)
Two
c)
One
d)
Three
10.
A new organism begins to form when egg and sperm join in which process?
a)
Fertilization
b)
Heredity
c)
Alleles
d)
Genes
11.
How might a geneticist write the alleles to show that a tall pea plant has one allele for tall stems and one allele for short stems?
a)
TT
b)
tT
c)
tt
d)
Tt
12.
Process in which the number of chromosomes in a cell is cut in half through the separation of homologous chromosomes
a)
Mitosis
b)
Meiosis
c)
Tetrad
d)
None of the above
13.
A variation of a gene is called a(n)
a)
trait
b)
pollination
c)
hybrid
d)
allele
14.
Factors that control your traits are called _________.
a)
DNA
b)
chromatids
c)
alleles
d)
genes
15.
Different forms of a gene that control the inheritance of traits are called ___________.
a)
genes
b)
probability
c)
alleles
d)
genotypes
16.
This type of allele is represented by a capital letter and it controls the trait that always shows up in an organism
a)
recessive allele
b)
reproductive allele
c)
sex chromosome
d)
dominant allele
17.
This type of allele is covered up whenever the dominant allele is present and is represented by a lower case letter
a)
dominant allele
b)
recessive allele
c)
codominance
d)
sex chromosome
18.
Which term has the same meaning as heterozygous?
a)
purebred
b)
homozygous
c)
hybrid
d)
allele
19.
Which term has the same meaning as purebred?
a)
homozygous
b)
heterozygous
c)
allele
d)
zygote
20.
Two different alleles for the same trait; one dominant and one recessive =
a)
homozygous
b)
codominant
c)
heterozygous
d)
incomplete dominance
21.
Two alleles are identical; example TT or tt =
a)
purebred or homozygous
b)
heterozygous
c)
traits
d)
phenotypes
22.
A ________ is a organism's physical appearance. (Ex. purple flowers)
a)
allele
b)
phenotype
c)
genotype
d)
trait
23.
A _________ is an organism's gene combination or code. (Ex. Tt)
a)
genotype
b)
phenotype
c)
probability
d)
trait
24.
This tool is used to organize all the possible combinations of offspring from particular parents
a)
lab
b)
codominance
c)
genetics
d)
Punnett Square
25.
One way to describe _____________ is to say it is the process of passing traits from one generation to another.
a)
genetics
b)
Mendel
c)
alleles
d)
inheritance
26.
Height, hair color, and skin color are examples of
a)
genetics
b)
traits
c)
genes
d)
genotypes
27.
Which word means passing of traits from parents to offspring?
a)
heredity
b)
chromosomes
c)
DNA
d)
genetics
28.
What is another word for offspring?
a)
embryos
b)
teenagers
c)
children
d)
reproduction
29.
The mathematical chance that something will happen
a)
phenotype
b)
probability
c)
chance
d)
heterozygous
30.
A cell that contains both sets of homologous chromosomes is called a _____ cell.
a)
Diploid
b)
Haploid
c)
Triploid
d)
Polyploid
100 %
