WorksheetsMendel's Work -n- Genetics
Total questions: 16
Worksheet time: 12mins
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.
Dimples are a dominant trait in humans. Which of the genotypes below could be found in the cells of individuals with dimples?
(D= Dominant Allele,
d= recessive allele)
(D= Dominant Allele,
d= recessive allele)
a)
dd only
b)
DD, dd
c)
DD, Dd
d)
Dd only
10.
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
11.
The scientific study of Heredity is?
a)
Mendel
b)
Traits
c)
Genetics
d)
Recessive
12.
A new organism begins to form when egg and sperm join in which process?
a)
Fertilization
b)
Heredity
c)
Alleles
d)
Genes
13.
Mendel used this type of organism because they always produce offspring that have the same trait.
a)
Purebred
b)
Hybrid
c)
Heterozygous
d)
Heredity
14.
Only pea plants that have two recessive alleles for stem height will be short.
a)
True
b)
False
15.
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
16.
Choose which sentence is TRUE about ALLELES.
a)
Recessive alleles are never present when dominant alleles are present.
b)
Alleles are different forms of a gene.
c)
A trait controlled by a dominant allele never shows up in the organism when the allele is present.
d)
Recessive alleles hide dominant alleles
100 %
