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ENG 2nd AHISD GENETICS

Total questions: 64

Worksheet time: 54mins

Name
Class
Date
1.
B=brown eyes
b= blue eyes
What is true about two brothers that have brown eyes?
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
2.
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
a)
none
b)
3/4
c)
1/2
d)
all
3.
Pea plants can have green or yellow seeds. In a pea plant that is heterozygous for seed color, the allele for yellow seeds masks the effects of the allele of green seeds. Which of the following terms best describes the allele for yellow seeds?
a)
codominant
b)
recessive
c)
dominant
d)
sex-linked
4.
In mussels, the allele for brown coloring (B) is dominant, and the allele for blue coloring(b) is recessive. For which parental genotypes are 100% of the offspring expected to be blue?
a)
BbxBb
b)
bbxbb
c)
BBxbb
d)
BBxBB
5.
Which of the characteristics is a lion least likely to pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
6.
The genotype of an organism describes the
a)
codons that make up the genes
b)
number of gene's on the chromosmes
c)
genetic make-up of a trait
d)
type of chromosomes in the nucleus
7.

Which deals with the transmission of inherited traits from one generation to another?

a)

medicine

b)

biology

c)

genetics

d)

evolution

8.
Who was the father of genetics 
a)
Sagan 
b)
Issac Newton 
c)
Gregor Mendel 
d)
C.jenkins 
9.
Which of the following genotypes is a purebred?
a)
Bb
b)
Gg
c)
bb
d)
Dd
10.
What is the definition of genotype?
a)
The physical expression of a trait
b)
The genetic combination of alleles 
c)
the genes on a DNA strand
11.
the condensed form of DNA is called________________
a)
an allele
b)
a gene
c)
a chromosome
d)
a phenotype
12.
Where, in the eukaryotic cell, is DNA located?
a)
ribosomes
b)
nucleus
c)
E.R.
d)
cytoplasm
13.
Which of the following will only show if two alleles are present?
a)
a dominant trait
b)
a recessive trait
14.
What percentage of the offspring in the punnett square are shown as a hybrid?
a)
100%
b)
75%
c)
50%
d)
25%
15.

An adaptation that an animal develops by observing other animals or by being taught.

a)

learned behavior

b)

structural adaptarion

c)

internal adaptation

d)

function

16.
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
17.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
18.

Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a ____________for light blue skin?

a)

Purebred

b)

Hybrid

c)

Homozygous

d)

Heterozygous

19.

having two of the same genes for the trait (sometimes called purebred).

a)

homozygous

b)

hetrozygous

c)

purebred

d)

hybrid

20.
How many pairs of chromosomes exist in each of your cells?
a)
10
b)
12
c)
23
d)
46
21.
Why are your chromosomes arranged in pairs?
a)
Scientists have no idea
b)
Because you get one from your mom and one from your dad
c)
Because pairs can divide easier
d)
Because DNA is awesome
22.
Put in order smallest to largest:
a)
Chromosome - DNA - Gene
b)
Gene - DNA - Chromosome 
c)
DNA - Gene  Chromosome
d)
Chromosome - Gene  - DNA
23.
Which is true about DNA?
a)
Only animals have DNA in their cells
b)
DNA research is simple and quick
c)
DNA contains many genes
d)
None of the above are true.
24.
Why does sexual reproduction result in more genetic diversity than asexual reproduction? 
a)
Traits from two parents are combined. 
b)
More organisms reproduce this way. 
c)
Offspring grow in different environments. 
d)
Offspring come from identical parents. 
25.
Organisms that reproduce asexually generally have offspring that are 
a)
unicellular. 
b)
multicellular. 
c)
genetically varied. 
d)
genetically identical. 
26.
Daffodils are plants that can perform both asexual and sexual reproduction. How does a daffodil population benefit more by reproducing sexually? 
a)
It can reproduce more rapidly. 
b)
It can adapt faster to its environment. 
c)
It can increase the diversity of inherited traits. 
d)
It can eliminate unfavorable traits from the gene pool. 
27.

What type of reproduction is taking place?

a)

Sexual

b)

Asexual

28.

What type of reproduction is taking place?

a)

Asexual

b)

Sexual

29.
What is an advantage of sexual reproduction?
a)
Allows genetic variation
b)
Only needs one parent
c)
Happens very quickly
d)
Offspring are exact copies of parent
30.

Strawberries produce runners called "stolons" which sprout nodes that grow into identical daughter plants. What type of reproduction does this example represent?

a)

Sexual reproduction

b)

Asexual reproduction

31.
Adaptations that help an animal blend in with its surroundings to avoid being seen is called
a)
habitat
b)
mimicry
c)
camouflage 
d)
adaptations
32.
What is an adaptation?
a)
A feature or behavior that helps an animal survive
b)
The food that an animal eats
c)
How energy moves in a food web
d)
An animal's home
33.
When an animal ADAPTS, it...
a)
eats and sleeps a lot
b)
changes so it can survive
c)
dies
d)
lives underground
34.
If organisms cannot adapt to changes, sometimes the entire group dies out. This is called _______? 
a)
hibernation
b)
extinction 
c)
adaptation 
d)
migration 
35.
An animal's color or pattern that helps it blend into its surroundings
a)
Environment 
b)
Mimicry
c)
Camouflage
36.

A monkey has a long tail to help it swing from branch to branch.

a)

Behavioral Adaptation

b)

Structural Adaptation

c)

Internal Adaptation

37.

A squid will squirt black ink at predators when frightened.

a)

Behavioral Adaptation

b)

Structural Adaptation

c)

Internal Adaptation

38.

A lion has pointed teeth to help it tear meat off of the bone.

a)

Behavioral Adaptation

b)

Structural Adaptation

c)

Internal Adaptation

39.

A black bear hibernates during the winter months.

a)

Behavioral Adaptation

b)

Structural Adaptation

c)

Internal Adaptation

40.

When threatened, some animals make warning sounds to help other animals escape a predator.

a)

Behavioral Adaptation

b)

Structural Adaptation

c)

Internal Adaptation

41.
What is a change in a gene called?
a)
an adaptation
b)
behavioral adaptation
c)
physiscal characteristic
d)
mutation
42.
______________ is a useful characteristic of an animal
a)
mutation
b)
quality
c)
adaptation
d)
skill
43.
The polar bear's white fur allows it to hide in the cold arctic. This adaptation is called________________.
a)
White on white
b)
Camouflage
c)
Color matching
d)
behavioral adaptation 
44.
What adaptation does this squirrel have that allows it to glide through the air?
a)
Extra skin under the arms and legs to capture air as it falls.
b)
Big ears to capture are as it falls
c)
Small eyes to see where it will land
d)
A short thin tail
45.
What is the function (job) of fish gills?
a)
To absorb water from the water
b)
To make the fish faster
c)
To make the fish lighter
d)
To absorb oxygen from the water
46.
What adaptation most likely helps this bird fly?
a)
A strong beak
b)
Small feet
c)
Hollow bones 
d)
The color of the bird
47.

Birds migrate during the winter to less cold areas. What type of adaptation is this?

a)

Behavioral

b)

Structural Adaptation

c)

Internal Adaptation

48.
When an animal imitates (looks or acts like) another animal it is called ______________.
a)
camouflage
b)
mimicry
c)
warning coloration
d)
protective resemblance
49.
A giraffe's long neck - used to reach leaves high in trees - is an example of a 
a)
instinct
b)
learned behavior
c)
behavioral adaptation
d)
physical adaptation
50.
The ears of this fox are an example of...
a)
A behavioral adaptation
b)
Poor breeding
c)
A physical adaptation
d)
Plastic surgery gone horribly wrong
51.
Animals that have something they DO  to live. This includes things like hibernation, migration etc.
a)
warning coloration
b)
camouflage
c)
behavioral adaptation
d)
mimicry
52.
 A stimulus is ___________
a)
a change in an organisms surroundings.
b)
 process in which organisms grow larger.
c)
a reaction to a change in surroundings
d)
the result of sexual reproduction.
53.
Which of the following responses is a plant growing toward or leaning toward light?
a)
thigmotropism
b)
hydrotropism
c)
phototropism
d)
gravitropism
54.
Plant’s roots grow down, anchoring it into the soil. To what stimulus is the plant responding?
a)
thigmotropism
b)
hydrotropism
c)
phototropism
d)
gravitropism
55.
Which of the following responses is a plant growing toward or leaning toward touch?
a)
thigmotropism
b)
hydrotropism
c)
phototropism
d)
gravitropism
56.
A plant’s roots grow thicker near the stream than away from the stream.  To what stimulus is the plant responding? 
a)
thigmotropism
b)
hydrotropism
c)
phototropism
d)
gravitropism
57.
What term refers to a plant growing or moving away from a stimulus?
a)
Touch
b)
Tropism
c)
Dormancy
d)
Development
58.

Plant's roots grow down, anchoring it into the ground. To what stimulus is the plant responding?

a)

thigmotropism

b)

phototropism

c)

hydropism

d)

gravitropism

59.
When the plant grows toward the stimuli
a)
Positive
b)
Negative
60.
The shoot of a plant growing up. 
a)
Positive Gravitropism 
b)
Negative Gravitropism 
c)
Thigmotropism
d)
Hydrotropism
61.
Which of the following is an example of the effects of geotropism?
a)
Monarch butterflies migrate from Canada to Mexico each year.
b)
A hippopotamus submerges itself in water until the Sun goes down.
c)
A wilted flower returns to an upright position after being watered.
d)
A potted plant falls on its side, but it roots still grow downward.
62.

Wilting is a plant's response to:

a)

High turgor pressure

b)

Low turgor pressure

c)

Gravity

d)

Sunlight

63.

This photo shows positive ???

a)

Geotropism

b)

Germination

c)

Thigmotropism

d)

Phototropism

64.

This plant moves away when you touch it....

a)

Phototropism

b)

Germination

c)

Thigmotropism

d)

Gravitropism/geotropism

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