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WorksheetsLHS Genetics Mendel Quiz
Total questions: 17
Worksheet time: 17mins
Name
Class
Date
1.
T1 - What is the cause of some traits "skipping" a generation?
a)
dominant traits
b)
recessive traits
c)
hybrid alleles
d)
homologous chromosomes
2.
T1 - In Mendel's monohybrid cross of a purebred white-flowered plant and a purebred purple-flowered plant, the F1 generation
a)
showed only the dominant trait
b)
showed only the recessive trait
c)
did not receive any recessive alleles
d)
remained purebred
3.
T2 - Individuals must exhibit a trait in order for it to appear in their offspring
a)
True
b)
False
4.
T2 - The Law of Segregation explains why, if you start with 46 choromosomes, Meiosis produces cells with how many chromosomes?
a)
44
b)
22
c)
46
d)
23
5.
T2 - Which law states that organisms inherit 2 copies of each gene and donate one to their offspring
a)
law of independent assortment
b)
law of segregation
c)
law of genetic linkage
d)
law of inheritance
6.
T2 - Recessive alleles may not be expressed because they are
a)
masked by the dominant allele
b)
the least common allele in the population
c)
the most common allele in the population
d)
less likely to having crossing over
7.
T2 - An allele whose trait always shows up in the organism when the allele is present.
a)
recessive allele
b)
dominant allele
c)
hidden allele
d)
present allele
8.
T2 - Based on the picture of Mendel's experiment, which of Mendel's Laws could you propose?
a)
Law 1, The Law of Dominance
b)
Law 2, The Law of Segregation
c)
Law 3, The Law of Independent Assortment
d)
Both Law 1 and Law 2
9.
T2 - Which observation of dihybrid crosses led to Mendel's law of independent assortment
a)
Particular individual traits persisted for many generations
b)
Many combinations of traits were always inherited together
c)
Some combinations of traits were not passed onto offspring
d)
The presence of one trait didn't affect the presence of another
10.
T3 - A distinguishing characteristic can be inherited as a(n)
a)
gene
b)
allele
c)
trait
d)
characteristic
11.
T3 - Which of the following genotypes is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
12.
T3 - having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
13.
T3 - What does heterozygous mean?
a)
An organism that has the same alleles for a trait (TT or tt)
b)
An organism that has different alleles for a trait (Tt)
c)
When neither allele is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
14.
T3 - What is another way of saying "purebred"?
a)
homozygous
b)
dominant
c)
recessive
d)
heterozygous
15.
T3 - What is a phenotype?
a)
The expression of a trait; physical appearance.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
16.
T3 - Which of the following is a genotype?
a)
long hair
b)
blue eyes
c)
Gg
d)
tall
17.
T3 - Having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
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