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WorksheetsGenetics
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
the study of the inheritance of traits
a)
genetics
b)
meiosis
c)
chemistry
d)
biology
2.
another term for purebred or true-breeding
a)
heterozygous
b)
homozygous
c)
homeostasis
d)
heterostasis
3.
another term for heterozygous
a)
pure breeding
b)
true breeding
c)
hybrid
d)
zygote
4.
a segment of DNA that controls a specific trait
a)
gene
b)
chromosome
c)
DNA
d)
plasmid
5.
the separation of alleles during meiosis
a)
crossing over
b)
random alignment
c)
segregation
d)
fertilization
6.
a reproductive cell
a)
zygote
b)
allele
c)
chromosome
d)
gamete
7.
the likelihood of an outcome
a)
probability
b)
probably not
c)
probably so
d)
all of the above
8.
a diagram used to determine the outcome of a genetic cross
a)
karyotype
b)
Punnett Square
c)
caladogram
d)
evolutionary tree
9.
the physical appearance of a trait
a)
genotype
b)
phenotype
c)
allele
d)
Pp
10.
the two alleles for a trait; type of genetics for the trait
a)
phenotype
b)
genotype
c)
allele
d)
fertilization
11.
the law that states alleles FOR DIFFERENT TRAITS segregate individually when gametes are made
a)
dominance
b)
segregation
c)
independent assortment
d)
evolutionary theory
12.
the exchange of genetic information during Prophase I of Meiosis
a)
crossing over
b)
random alignment
c)
tetrad formation
d)
segregation
13.
When does random alignment occur?
a)
Prophase I of Meiosis
b)
Prophase II of Meiosis
c)
Metaphase I of Meiosis
d)
Metaphase of Mitosis
14.
Ff x ff. What is the phenotypic ratio of the offspring?
a)
1:2:1
b)
2:2
c)
1:3
d)
3:1
15.
If a bullfrog has a haploid number of 13. How many chromosomes are in it's gametes?
a)
6.5
b)
13
c)
26
d)
46
16.
Describe Gregor Mendel.
a)
Austrian Monk
b)
English Doctor
c)
Australian Monk
d)
English Monk
17.
Mendel crossed two hybrid tall plants. 25% of the offspring were short. What allele is dominant?
a)
tall
b)
short
c)
medium
d)
none of the above
18.
Mendel used Pisum sativum for all of the following reasons EXCEPT
a)
could only grow in the Galapagos
b)
could self-pollinate
c)
could cross-pollinate
d)
could grow quickly
19.
In humans, tasting and tongue rolling are not linked. A woman is heterozygous for both traits (TtRr). How many different allele possibilities can be found in her eggs?
a)
2
b)
4
c)
8
d)
16
20.
Which pattern of inheritance causes a heterozygous individual to display a blend of the two phenotypes?
a)
codomiance
b)
incomplete dominance
c)
multiple allele
d)
sex-linked
21.
Which statement is FALSE regarding sex-linked (X-linked) traits?
a)
more common in boys than girls
b)
females with the trait have dads with the trait
c)
boys receive the allele for the trait from their mothers
d)
girls always pass the trait onto their daughters
22.
Two parents with blood type-o have four children. What is the probability of the child also being type-o?
a)
0%
b)
25%
c)
50%
d)
100%
23.
Which pattern of inheritance causes a phenotype to be determined by many genes?
a)
incomplete dominance
b)
codominance
c)
multiple allele
d)
polygenic
24.
If a trait is not sex-linked, it is
a)
autosomal
b)
dominant
c)
recessive
d)
polygenic
25.
A diagram showing the location of genes thus determining the likelihood of linkage is called a
a)
gene transfer.
b)
gene map.
c)
gene fingerprint.
d)
gene tree.
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