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WorksheetsGenetics, DNA Technology, Pedigrees
Total questions: 26
Worksheet time: 27mins
Name
Class
Date
1.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
2.
If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?
a)
100% Tt
b)
50% Tt, 50% tt
c)
75%Tt, 25%tt
d)
25%TT, 50%Tt, 25%tt
3.
This is an example of what?
a)
Complete dominance
b)
Incomplete dominance
c)
Codominance
d)
None of the above
4.
A heterozygous yellow pea plant's genotype would be:
a)
YY
b)
yy
c)
Yy
d)
Yg
5.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
6.
The sex of an offspring is determined by ______________________.
a)
the mother
b)
the father
c)
the mother and the father
d)
by the environment
7.
Incomplete dominance means that the traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
8.
Term for homozygous organisms that display two dominant phenotypes at the same time
a)
codominance
b)
incomplete dominance
c)
multiple alleles
d)
linked genes
9.
What is a phenotype?
a)
The expression of a trait; what you see.
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
10.
A man with type O blood is accused of being the father of a type B baby. The mother is type A. Could this man be the father?
a)
Yes
b)
No
11.
If two parents are heterozygous for type A blood, what is the probability that their offspring would have type O blood?
a)
100 %
b)
75%
c)
50%
d)
25%
12.
What type of macromolecule are restriction enzymes?
a)
nucleic acid
b)
carbohydrate
c)
protein
d)
lipid
13.
A method of separating DNA fragments according to their size and charge using an electric current passed through a gel containing the samples a
a)
Chromosome
b)
DNA Probe
c)
Electrophoresis
d)
Restriction Enzyme
14.
Most human cells have how many chromosomes
a)
23
b)
24
c)
46
d)
48
15.
Which suspect should be charged with the crime?
a)
Suspect 1
b)
Suspect 2
c)
Suspect 3
d)
None of these suspects
16.
DNA is recovered from a suspected dead soldier. Which Parents are the likely parents of the soldier?
a)
Parents C and D
b)
Parents E and F
c)
Parents A and B
d)
Parents G and H
17.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
18.
What is the mode of inheritance shown here?
a)
Autosomal Dominant
b)
Sex Linked
c)
Autosomal Recessive
19.
What is the mode of inheritance shown here?
a)
Autosomal Recessive
b)
Autosomal Dominant
c)
Sex Linked
20.
If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above
21.
How many generations are represented in this pedigree?
a)
2
b)
4
c)
6
d)
13
22.
Hemophilia is a recessive sex-linked trait. If H = normal & h = has hemophilia, which genotype represents a male with hemophilia.
a)
XHY
b)
XHXh
c)
XhXh
d)
XhY
23.
Gene: ABC
New Gene: BBC
What mutation
New Gene: BBC
What mutation
a)
deletion
b)
insertion
c)
substitution
d)
transversion
24.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
25.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
26.
The DNA sequence ATCAGCGCTGGC is part of a gene. How many amino acids are coded for by this message?
a)
4
b)
8
c)
12
d)
20
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