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Heredity Unit Review

Total questions: 60

Worksheet time: 42mins

Name
Class
Date
1.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
2.
Offspring receives two sets of _____________ (one from each parent)
a)
blue jeans
b)
genes
c)
machines
d)
pedigree
3.
_____________________ is the appearance of an organism, or how it looks
a)
phenotype
b)
ratio
c)
recessive trait
d)
heredity
4.
A ________________________ is used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
5.
______________________ is the mathematical chance that something will happen
a)
division
b)
selective breeding
c)
ratio
d)
probability
6.
A characteristic that an organism can pass on to its offspring through its genes
a)
protein
b)
trait
c)
DNA
d)
gene
7.
This trait is hidden whenever the dominant allele is present
a)
dominant allele
b)
codominance
c)
recessive allele
d)
Punnett Square
8.
When alleles are neither dominant nor recessive (As a result, both alleles are expressed in the offspring.).
a)
codominance
b)
probability
c)
recessive allele
d)
Punnett Square
9.
An organism's genetic makeup, or allele combination
a)
fertilization
b)
genotype
c)
phenotype
d)
heterozygous
10.
An organism that has two different alleles for a trait (hybrid)
a)
fertilization
b)
genotype
c)
homozygous
d)
heterozygous
11.
An organism that has two identical alleles for a trait (purebred)
a)
genotype
b)
phenotype
c)
homozygous
d)
heterozygous
12.
The trait that covers up the other trait and is written as an uppercase letter is called the
a)
Dominant Trait
b)
Homozygous Trait
c)
Recessive Trait
d)
Heterozygous Trait
13.
This is the word for the trait that is covered up by another form of that trait and is written as a lowercase letter....
a)
Recessive
b)
Homozygous
c)
Heterozygous
d)
Dominant
14.
Describes an organism with two alleles for one trait that are the same.
a)
Genotype
b)
Heterozygous
c)
Homozygous
d)
Phenotype
15.
This scientist was responsible for studying heredity in Austria in the 1800s...
a)
Einstein
b)
Mendel
c)
Punnett
d)
Watson
16.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
17.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
18.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
19.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
20.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
21.
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
a)
rr
b)
R
c)
RR
d)
RR or Rr
22.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
23.
A homozygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color). 
a)
100 % tan
b)
100 % brown 
c)
50 % brown and 50% tan 
d)
75 % brown and 25 % tan 
24.

If a heterozygous parent and a homozygous recessive parent mate, what percentage of their offspring will be dominant?

a)

25%

b)

50%

c)

75%

d)

100%

25.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
26.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
27.

What is the genotype of a person with type A blood, who had a father with type O blood?

a)

AB

b)

AO

c)

AA

d)

OO

28.

This is an example of ___________?

a)

Incomplete dominance

b)

Codominance

c)

Multiple Alleles

d)

Polygenic Inheritance

29.

This is an example of ___________.

a)

Incomplete Dominance

b)

Codominance

c)

Multiple Alleles

d)

Polygenic Inheritance

30.

What type of inheritance do two alleles have if their traits blend together?

a)

Incomplete Dominance

b)

Codominance

c)

Complete dominance

d)

Sex-Linked

31.

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

a)

Incomplete Dominance

b)

Codominance

c)

Complete dominance

d)

Multiple Alleles

32.

Both traits expressed TOGETHER (not blended)

a)

Codominance

b)

Incomplete Dominance

c)

Mendelian trait

d)

Sex-linked

33.

Many genes determine 1 trait (ex: skin color)

a)

Incomplete Dominance

b)

Polygenic

c)

Codominance

d)

Multiple alleles

34.
For an XX female to express a recessive sex-linked trait, she must have....
a)
two recessive alleles
b)
a Y chromosome 
c)
one recessive allele
d)
two dominant alleles
35.

Human height occurs in a continuous range because it is affected by the interaction of many genes, making it a(n)

a)

autosomal trait

b)

polygenic trait

c)

codominant trait

d)

sex-linked trait

36.

A man with type A blood marries a woman with Type AB blood. Based on what you know about blood types, what is the only blood type not possible for their children?

a)

A

b)

O

c)

AB

d)

B

37.
The 23rd pair of chromosomes that differ in males and females are called___.
a)
autosomes
b)
sex chromosomes
c)
multiple alleles
d)
polygenic
38.

There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease autosomal dominant or autosomal recessive?

a)

Dominant

b)

Recessive

39.
This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?
a)
8
b)
5
c)
2
d)
3
40.
Does this pedigree show a dominant or recessive trait?
a)
Dominant
b)
Recessive
41.
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
42.

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

43.
Imagine the shaded individuals are those WITH a "hitchhikers thumb." What must be the genotype of individual II-1?
a)
TT
b)
tt
c)
Tt
d)
Impossible to tell
44.
What is the chromosomal condition of the individual whose karyotype is seen in the image?
a)
Turner's Syndrome
b)
Trisomy 21 (Down Syndrome)
c)
Trisomy 13
d)
Trisomy 18
45.
Why do all the daughters in Generation II carry the colorblind gene?
a)
Because mom passed on the gene.
b)
Because dad passed on the X chromosome.
c)
Because their brother has it.
d)
Because their brother gave it to them.
46.

What is the mode of inheritance shown here?

a)

Autosomal Recessive

b)

Sex-Linked

c)

Autosomal Dominant

47.
What is the gender of the individual whose karyotype is seen in the image?
a)
Male
b)
Female
48.

Colorblindness is a recessive, X chromosome sex-link disorder. Cross the parents to figure out which percentage of their offspring will be colorblind.

a)

25%

b)

0%

c)

75%

d)

50%

49.

Which term is correctly matched with the description?

a)

Co-dominance occurs when two traits blend together to form a new phenotype.

b)

Human skin color is an example of codominant trait.

c)

Incomplete dominance occurs when traits blend producing a third phenotype.

d)

Human blood type is not an example of multiple alleles.

50.

Coat color in calico cats is an example of:

a)

Polygenic Traits

b)

Epistasis

c)

X-Chromosome Inactivation

d)

X-linked traits (same as sex-linked)

51.

Gel electrophoresis sorts DNA based on:

a)

fragment length

b)

fragement sequence

52.

Humans with genetic diseases can have a gene inserted into their body using a virus. This is called:

a)

Gene therapy

b)

Cloning

c)

DNA fingerprinting

53.

In which ways can genetic engineering can improve crops

a)

Make them pest or drought resistant

b)

Make them more nutritious

c)

Make them larger

d)

All answers are correct

54.
Making changes in the DNA of an organism is
a)
selective breeding
b)
artificial selection
c)
genetic engineering
d)
genetic transformation
55.
Which term refers to a farmer choosing the best corn from this year to plant next year?
a)
natural selection
b)
selective breeding
c)
genetic engineering
d)
genetic transformation
56.
Why aren't more scientists using gene modification?
a)
Because they are poor
b)
Because they are lazy
c)
Because of ethics and morality
d)
Because of how long it takes
57.

An argument in favor of food biotechnology is that it

a)

provides foods that cure viral diseases.

b)

provides more food to feed a growing population.

c)

provides a cash crop for low income nations.

d)

biotech foods are not controversial

58.
When making a DNA Fingerprint, the gel electrophoresis machine filters the DNA by size. Which fragments make it further down in the gel?
a)
shorter
b)
longer
c)
codons
d)
anticodons
59.
Making an identical copy of a cell or tissue is
a)
genetic transformation
b)
stem cell diffusion
c)
reproductive cloning
d)
therapeutic cloning
60.

Hair samples found at the crime scene during a murder investigation were used to obtain the genetic profile. The sample was checked against the 3 suspects. Which of the suspects committed the crime?

a)

Suspect 3.

b)

Any of them could be the killer.

c)

Suspect 1.

d)

Suspect 2.

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