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Worksheets

Genetics--Legacy

Total questions: 56

Worksheet time: 2hrs 46mins

Name
Class
Date
1.
In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?
a)
Tall = T
Short = S
b)
Tall = T
Short = t
c)
Tall = t
Short = T
d)
Tall = TT
Short = tt
2.
A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?
a)
0%
b)
25%
c)
50%
d)
75%
3.
Leonardo bet his friend Olivet that two heterozygous green-eyed sea monsters could not have a recessive blue-eyed baby sea monster. Olivet said they can have a blue-eyed sea monster.
Who wins the bet?
a)
Leonardo
b)
Olivet
c)
Both
d)
Neither
4.
Identify the homozygous dominant genotype:
a)
FF
b)
Ff
c)
ff
5.

Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.

a)

Protein

b)

DNA

c)

RNA

d)

Glucose nucleic acid (GNA)

6.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
7.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
8.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
9.

T - tall and t = short

In the punnett square below, what belongs in the missing square

a)

tt

b)

Tt

c)

Bb

d)

TT

10.

B = brown eyes

b = blue eyes

One brother has genotype BB and the other brother has genotype Bb.

Which statement is true about these two brothers?

a)

They have same phenotype and genotype

b)

They have different phenotypes and genotypes

c)

They have same phenotype, but different genotypes

d)

They have different phenotypes, but the same genotype

11.

Which of the following genotypes is Purebred? Select 2 answers.

a)

aA

b)

Aa

c)

AA

d)

aa

12.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
13.

Which of the following genotypes is homozygous dominant?

a)

Yy

b)

yY

c)

yy

d)

YY

14.

Which of the following genotypes is homozygous recessive?

a)

Tt

b)

tt

c)

TT

d)

tT

15.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
16.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
17.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
18.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
19.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
20.
Snapdragon flowers come in red, pink and white.  What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
21.
Incomplete dominance means that the traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
22.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
23.
A __________ is a segment of DNA that codes for a particular protein, which leads to a particular trait.
a)
Gene
b)
Allele
c)
Codon
d)
Nucleotide
24.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
25.

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

b)

Red and White

c)

White

d)

Pink

26.
This is an example of ___________.
a)
 Incomplete Dominance
b)
 Codominance
27.
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
28.
A personal with type AB blood has which genotype?
a)
type A
b)
AA
c)
AB
d)
BB
29.

Which of the following statement is correct regarding Codominance?

a)

Both alleles are expressed equally

b)

Neither allele is expressed

c)

Expression of a trait depends upon the environment

30.
Which of the following statements is true regarding blood types?
a)
A and O are codominant, B is recessive.
b)
B and O are codominant, A is recessive.
c)
A and B are codominant, O is recessive.
d)
A , B and O are all codominant with each other.
31.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
32.
 How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
33.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
34.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
35.

Red hair (R) and white hair (W) are codominant in cows.

Cross a white cow (WW) with a red cow (RR).

What color will the calves be?

a)

White

b)

Red

c)

Pink

d)

Roan

(Mix of white spots and red spots)

36.

You have two flowers. The red allele shows incomplete dominance over the white allele.

You breed a red flower (RR) with a white flower (rr).

What do you think the offspring will look like?

a)

All red

b)

All white

c)

All pink

d)

Half red, half white.

37.

A person with a Type A Phenotype would have what potential genotypes?

a)

IAIA

b)

IAi

c)

ii

d)

IAIB

38.

A person with a Type O Phenotype would have what potential genotypes?

a)

IBIB

b)

IBi

c)

ii

d)

IAIB

39.

Which blood type(s) can receive blood from anyone?

a)

A

b)

B

c)

AB

d)

O

40.

Which of the following are possible human blood types? (check all that apply)

a)

A

b)

B

c)

C

d)

O

e)

AB

41.

Blood transfusions require that the person get blood from a donor with antigens that are

a)

the same

b)

different

c)

the same or different; doesn't matter

42.

The blood type that is the universal donor because anyone can receive it is

a)

A

b)

B

c)

O

43.
This is when a trait is controlled by more than one gene.
a)
Multiple alleles
b)
Polygenetic inheritance
c)
Codominance
d)
Incomplete Dominance 
44.

Examples include skin color and height (the individual's phenotype exists somewhere along a spectrum)

a)

polygenic inheritance

b)

multiple alleles

c)

linked genes

d)

incomplete dominance

45.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
46.

The different forms of a gene are called

a)

traits

b)

pollinators

c)

alleles

d)

hybrids

47.

The end result of mitosis is

a)

4 Identical Cells are produced

b)

4 genetically different cells are produced

c)

2 identical cells are produced

d)

2 genetically different cells are produced

48.

The end result of meiosis is...

a)

4 identical cells

b)

4 genetically different cells

c)

2 identical cells

d)

2 genetically different cells

49.

What is the correct order for the phases of mitosis?

a)

Prophase, Anaphase, Telophase, Metaphase

b)

Anaphase, Telophase, Prophase, Metaphase

c)

Telophase, Anaphase, Prophase, Metaphase

d)

Prophase,

Metaphase, Anaphase, Telophase

50.

What is the correct definition of a haploid cell?

a)

A cell that only has a single set of chromosomes. (23 = n)

b)

A cell that has 2 sets of chromosomes (46 = 2n)

51.
What scientific process is being shown?
a)
Mixing
b)
Crossing under
c)
Crossing over
d)
square dancing
52.

What would be the gametes for the YyRr plant?

a)

YR, YR, yR, yR

b)

YR, Yr, yR, yr

c)

Yy, Rr, YY, RR

d)

yy, rr, yy, rr

53.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
54.
Using the dihybrid cross and key provided, what is the probability of the offspring being tall and white?
a)
9
b)
2
c)
3
d)
6
55.
In a dihybrid cross
a)
one trait is crossed.
b)
two traits are crossed.
c)
four boxes are needed for the punnett square.
d)
mom's alleles are dominant.
56.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 
a)
0%
b)
25%
c)
50%
d)
100%

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