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genteitcs uint review

Total questions: 68

Worksheet time: 34mins

Name
Class
Date
1.

The passing of traits from parents to offspring

a)

heredity

b)

a molecule

2.

The different forms of a gene

a)

alleles

b)

atoms

c)

proteins

d)

wheels

3.

A chart that shows all the possible combinations of alleles that can result from a genetic cross

a)

dominant allele

b)

codominance

c)

probability

d)

Punnett Square

4.

An organism's physical appearance or visible traits. (what it looks like)

a)

phenotype

b)

genotype

5.

An organism's genetic makeup, or allele combination. The letters we use to show the allele combination.

a)

phenotype

b)

genotype

6.

An organism that has two identical (THE SAME) alleles for a trait (purebred)

a)

homozygous

b)

heterozygous

7.

An organism that has two different alleles for a trait (hybrid)

a)

homozygous

b)

heterozygous

8.

Study the diagram.


Based on the diagram, which statement is true?

a)

Genes are made up of chromosomes.

b)

Chromosomes contain a single gene.

c)

Centromeres hold instructions for how to make proteins.

d)

Genes are present on chromosomes and control traits in an individual.

9.

Which of the following are GENOTYPES? (select all correct answers)

a)

black hair

b)

homozygous dominant

c)

heterozygous

d)

blue eyes

e)

BB

10.

PHENOTYPE is

a)

the genetic make-up of an organism

b)

the physical trait of an organism

c)

nucleic acid

d)

Aa

11.

Which of the following are PHENOTYPES?

a)

green skin

b)

Aa

c)

homozygous recessive

d)

purple eyes

e)

black fur

12.

The prefix "homo" means

a)

different

b)

same

c)

tomorrow

d)

never

13.

The prefix "hetero" means

a)

different

b)

ugly

c)

fancy

d)

same

14.

Which of the following represents alleles for the homozygous dominant genotype?

a)

Aa

b)

aa

c)

AA

15.

Which of the following represents alleles for the homozygous recessive genotype?

a)

Aa

b)

aa

c)

AA

16.

Which of the following represents alleles for the heterozygous genotype?

a)

Aa

b)

aa

c)

AA

17.

If A = red fur and a = white fur, what color fur would Aa be? (Assume Mendelian inheritance)

a)

red

b)

white

c)

purple

d)

blue

18.

If A = red fur and a = white fur, what color fur would AA be? (Assume Mendelian inheritance)

a)

red

b)

white

c)

purple

d)

blue

19.

If A = red fur and a = white fur, what color fur would aa be? (Assume Mendelian inheritance)

a)

red

b)

white

c)

purple

d)

blue

20.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
21.

Phenotype determines genotype

a)

True

b)

False

22.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
23.

This trait is hidden whenever the dominant allele is present

a)

dominant allele

b)

codominance

c)

recessive allele

d)

Punnett Square

24.

This trait always shows up in an organism when the allele is present

a)

dominant allele

b)

codominance

c)

probability

d)

recessive allele

25.
What are genes?
a)
Something you wear.
b)
Segments of DNA that carry traits for offspring.
c)
The powerhouse of cells.
d)
None of the above.
26.
Which of the following is an example of phenotype?
a)
bb
b)
blue eyes
27.
The study of how traits are inherited through the interactions of genes. 
a)
Genetics
b)
Heredity
c)
Genes
d)
Traits
28.
Structures found in the nucleus of a cell that contain DNA. 
a)
Genes
b)
Chromosomes
c)
Allele
d)
Traits
29.
What is the yellow seed genotype?
a)
aa
b)
Aa
c)
AA
d)
AA or Aa
30.
What is the dominant trait?
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
31.

What genotype would go in box 2? And is it Homozygous or Heterozygous?

a)

BB Heterozygous

b)

Bb Heterozygous

c)

bb Homozygous

d)

Bb Homozygous

32.

What belongs in the last box?

a)

RR

b)

Rr

c)

rr

d)

ff

33.

When do genetic mutations get passed from parent to offspring?

a)

When the Gametes (sex cells) are mutated

b)

When the mutation changes the order of DNA

c)

When the mutation occurs randomly

34.

Many mutations...

a)

Occur randomly

b)

Occur because of bad eating habits

c)

Occur because of lack of exercise

35.

Mutations can be...

a)

Harmful

b)

Beneficial

c)

Neutral

d)

All of the Above

36.

Your enzymes can repair some mutations

a)

True

b)

False

37.

Mutations are...

a)

Changes in the sequence of DNA

b)

Broken chromosomes

c)

Bad genes

38.

Body Cell mutations can contribute to...

a)

Cancer

b)

Parkinson's Disease

c)

Bronchitis

d)

Heart Failure

39.

Mutations can be a result of...

a)

Environmental Exposure

b)

Lack of sleep

c)

Not enough exercise

40.

Genetic Engineering is...

a)

The manipulation of an organism's genes

b)

The manipulation of an organism's chromosomes

41.

What are GMO's

a)

Genetically Modified Organisms

b)

Genotype Melody Ocelot

c)

Gilly Married Oswald

d)

Rick Harrison owns a pawn shop :)

42.

When your body's enzymes repair a mutation, it has...

a)

No effect

b)

A harmful effect

c)

A positive effect

43.
Mutations are a change in what?
a)
DNA
b)
tRNA
c)
genotype
d)
phenotype
44.
The purpose of selective breeding is to 
a)
Get bigger animals
b)
get smaller animals
c)
create animals with desirable traits
d)
create animals with bad traits
45.
The evolution of dogs from wolves is due to:
a)
Natural Selection
b)
Sexual Selection
c)
Artificial Selection
d)
Vestigial Structures
46.
It is very common for yellow labs to have bad hips. This is because owners want purebred yellow labs who are good hunting dogs.  This is an example of 
a)
Natural Selection
b)
Selective breeding
c)
Mitosis
d)
Fossil Record
47.
True or False.  Some genetic disorders are caused by changes in the DNA of genes, but some are caused by changes in the structure or number of chromosomes.
a)
True
b)
False
48.
True or False.  A clone has exactly the same genes as the organism from which it was produced.
a)
True
b)
False
49.
True or False.  Genetic engineering is used to produce a protein called insulin, which helps people who suffer from diabetes.
a)
True
b)
False
50.
Some genetic disorders are caused by what?
a)
alleles
b)
Mutations in the DNA of genes
c)
Phenotype
d)
Genotype
51.
A genetic disorder is an abnormal condition that a person inherits through genes or chromosomes?
a)
True
b)
False
52.
The transfer of a gene from the DNA of one organism into another organism in order to produce an organism with desired traits.
a)
Genetic Engineering
b)
Karyotype
c)
Pedigree
d)
Genome
53.
The process of making changes in the DNA code of a living organism is called 
a)
Selective Breeding
b)
Inbreeding
c)
Genetic Engineering
d)
Di-hybrid Cross
54.
Scientists genetically engineer corn to be immune to corn diseases. This is BENEFICIAL because
a)
This causes corn to be less likely to reproduce
b)
This causes corn to be less likely to survive
c)
This causes corn to be smaller
d)
This allows increased production of corn
55.
Scientists have figured out a way to engineer crops that are larger and require less water to grow.
a)
Harmful
b)
Beneficial
c)
Neither
56.
Scientists in Zoos have selectively bred white tigers to keep them the same color. This has resulted in excessive inbreeding. White Tigers in Zoos are now more likely to be born with birth defects.
a)
Harmful
b)
Beneficial
c)
Neither
57.

____ is an inheritance pattern that results in offspring that are a MIXTURE of the two traits of its parents, like yellow and blue flowers making green offspring.

a)

incomplete dominance.

b)

codominance

58.

What type of inheritance pattern do two alleles for a gene follow if their traits blend together on the offspring?

a)

Incomplete dominance

b)

Codominance

59.

What type of inheritance pattern is shown here?

a)

Codominance

b)

Incomplete dominance

60.

The green fish offspring in this image is an example of ---

a)

Incomplete dominance

b)

Codominance

61.

Snap dragon color is a incomplete dominant trait. A red flower (RR) is crossed with white flower (WW)? What color are flowers that are RW?

a)

Red and white spotted

b)

Red

c)

Pink

d)

White

62.

A red flowered plant (RR) is crossed with a white flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?

a)

0%

b)

25%

c)

50%

d)

100%

63.

A tall plant (TT) is crossed with a short plant (SS). The result is a medium plant (TS). This is what type of inheritance pattern?

a)

Incomplete dominance

b)

Codominance

64.

The hair form gene shows incomplete dominance. If your genotype is SS, you will have straight hair. If your genotype is CC, you will have curly hair. If your genotype is SC, you will have wavy hair. Mr. and Mrs. Anderson both have wavy hair (SC). What percentage of their children will also have wavy hair (SC)?

a)

25%

b)

50%

c)

75%

d)

100%

65.

Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring represented in this P square will be calico (black and tan spotted)?

a)

25%

b)

50%

c)

75%

d)

100%

66.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be black?

a)

25

b)

50

c)

75

d)

100

67.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be white?

a)

25

b)

50

c)

0

d)

100

68.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be gray?

a)

25

b)

50

c)

75

d)

100

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