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Genetics Review Part 2

Total questions: 83

Worksheet time: 2hrs 16mins

Name
Class
Date
1.

Asexual reproduction produces offspring with DNA that is _________ the parent.

a)

different from

b)

the same as

2.

Hydra reproduce by

a)

binary fission

b)

budding

c)

sexual reproduction

3.

A benefit of sexual reproduction is

a)

less energy is used

b)

greater genetic diversity in the species

c)

it is more efficient than asexual reproduction

4.

A disadvantage of sexual reproduction is that it is

a)

more time consuming than asexual reproduction

b)

creates less diversity than asexual reproduction

c)

uses less energy than asexual reproduction

5.

Why is greater genetic diversity important for a species?

a)

the species is more likely to survive disasters

b)

the population of the species will never get too large

c)

there will be less competition with other species

6.

Which results in offspring that are genetically unique and display a combination of traits from each parent?

a)

Sexual

b)

Asexual

c)

Neither

d)

Both

7.

Which type of reproduction results in offspring that are identical to the parent?

a)

Sexual

b)

Asexual

c)

Neither

d)

Both

8.

Which type of reproduction tends to be a longer process?

a)

Sexual

b)

Asexual

c)

They occur at the same rate

d)

Both are slow processes

9.

Which type of reproduction tends to produce more offspring?

a)

Sexual

b)

Asexual

c)

They occur at the same rate

10.

Sexual, Asexual, or Both?

a)

Sexual

b)

Asexual

c)

Both

d)

Neither

11.

What is asexual reproduction?

a)

1 parent

b)

2 parents

12.

What is sexual reproduction?

a)

1 parent

b)

2 parents

13.

What is the process called where a sperm and egg make a zygote?

a)

Fertilization

b)

Budding

c)

Fragmentation

14.

An earthworm regrows itself.

This is an example of ...

a)

Fertilization

b)

Binary Fission

c)

Fragmentation

d)

Budding

15.

What type of sexual reproduction is this photo showing?

a)

budding

b)

binary fission

c)

fertilization

d)

fragmentation

16.

What type of sexual reproduction is this?

a)

fertilization

b)

budding

c)

vegetative propagation

d)

fragmentation

17.

What is an advantage of asexual reproduction?

a)

it's fast- no need to look for a mate

b)

It uses a lot of energy.

c)

There are a lot of predators to face.

18.

What is a disadvantage (bad) to sexual reproduction?

a)

It is fast and easy to find a mate.

b)

It may cause disease.

c)

Makes environments change

19.

What type of reproduction produces an offspring that is created from 1 parent organism?

a)

Sexual Reproduction

b)

Asexual Reproduction

20.

What type of reproduction forms an offspring that is gentically identical to the parent?

a)

Sexual Reproduction

b)

Asexual Reproduction

21.

What type of reproduction forms an offspring that is created from 2 parent organisms?

a)

Sexual Reproduction

b)

Asexual Reproduction

22.

Which type of reproduction allows for generic variation in a population?

a)

Asexual Reproduction

b)

Sexual Reproduction

23.

What type of cells are sex cells?

a)

Haploids

b)

Diploids

24.

What is is the diploid cell that results from fertilization?

a)

Gamete

b)

Zygote

c)

Haploid Cell

d)

Sex cell

25.

Which of the following are subject to massive die offs if the environment changes?

a)

Offspring from asexual reproduction

b)

Offspring from sexual reproduction

26.

Which is a trait that is always expressed?

a)

Dominant

b)

Recessive

27.

What is combination of alleles for an organism?

a)

Genotype

b)

Phenotype

28.

Rr

a)

HOMOZYGOUS DOMINANT

b)

HOMOZYGOUS RECESSIVE

c)

HETEROZYGOUS

29.

tt

a)

HOMOZYGOUS DOMINANT

b)

HOMOZYGOUS RECESSIVE

c)

HETEROZYGOUS

30.

BB

a)

HOMOZYGOUS DOMINANT

b)

HOMOZYGOUS RECESSIVE

c)

HETEROZYGOUS

31.

What is  the observable expression of the genotype?

a)

Zygote

b)

Allele

c)

Gamete

d)

Phenotype

32.

T = Tall

t= short

What is the phenotype for tt?

a)

Tall

b)

Short

33.

T = Tall

t= short

What is the phenotype for TT?

a)

Tall

b)

Short

34.

T = Tall

t= short

What is the phenotype for Tt?

a)

Tall

b)

Short

35.

What is used to figure out what the possible combinations of alleles are for a trait?

a)

Karyotype

b)

Punnett Square

36.

B = Black Hair

b = Blonde Hair

a)

100% black hair phenotype

b)

50% black hair phenotype and 50% blonde hair

c)

100% blonde hair phenotype

37.

G = Green leaves

g = yellow leaves

a)

Genotype: Gg, GG

Phenotype: 100% yellow

b)

Genotype: Gg, gg

Phenotype: 50% green and 50% yellow

c)

Genotype: gg

Phenotype: 100% Green

d)

Genotype: Gg, gg

Phenotype: 100% Yellow

38.

Which type of reproduction forms chromosomes and genes that are the    

  same, but the alleles may be different?

a)

Sexual Reproduction

b)

Asexual Reproduction

39.

Which type of organism organism is a sexually reproducing organism with a pair of each chromosome in its cell?

a)

Diploid

b)

Haploid

40.

What type of reproduction occurs through fertilization?

a)

Asexual Reproduction

b)

Sexual Reproduciton

41.

When does fertilization occur?

a)

when gamete cells fuse together to form a zygote

b)

when gamete cells split to form zygote

42.
Which statement best supports why many offspring look similar to their parents?
a)
Offspring inherit characteristics from one parent.
b)
Offspring inherit characteristics from both parents.
c)
Parents choose which characteristics to pass on to their offspring.
d)
Parents choose to change their appearance to match that of their offspring.
43.
What are the possible combinations of a pea plant with the alleles PP and a male pea plant with the alleles pp.
P= purple
p= white
a)
all Pp
b)
all PP
c)
Pp,PP,Pp,PP
d)
all pp
44.
When the allele combination is a dominate and a recessive trait together which trait will be seen?
a)
Dominate
b)
Recessive
c)
none
d)
both
45.
Homozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
46.
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%
47.
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
48.
This means Different Gene
a)
Dominant
b)
Recessive
c)
Homozygous
d)
Heterozygous
49.
Homozygous or heterozygous?
BB
a)
Homozygous
b)
Heterozygous
50.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
51.

The combination of genes a person has, represented by letters, is their...

a)

Genotype

b)

Phenotype

c)

Chromosome

d)

Punnett Square

52.

The physical (observable) traits a person has is their...

a)

Genotype

b)

Phenotype

c)

Chromosome

d)

Punnett Square

53.

Choose the genotypes that are heterozygous.

a)

Hh

b)

ll

c)

TT

d)

Yy

54.

Choose the genotypes that are homozygous.

a)

Rr

b)

DD

c)

Tt

d)

ee

55.

When completing a Punnett Square, where are the genotypes of the parents?

a)

In the boxes

b)

On the top and side

c)

Nowhere

56.

When completing a Punnett Square, where do we put the genotypes of the offspring?

a)

Inside the boxes

b)

On the top and side

c)

Nowwhere

57.

If a person has the genotype, Yy, which trait do we see? (Y=Yellow, y=blue).

a)

Yellow, since it is the dominant trait

b)

Blue, since it is the recessive trait

c)

Both

58.

What belongs in the last box?

a)

RR

b)

Rr

c)

rr

d)

ff

59.

What is the genotype of the missing parent?

a)

BB

b)

Bb

c)

bb

60.

If B=Hair, b=bald... what is the percent chance of the offspring being bald?

a)

100%

b)

75%

c)

50%

d)

25%

61.

Traits come from...

(There may be more than one)

a)

Our parents

b)

The environment

c)

Thin Air

62.

What is a segment of DNA that determines a trait?

a)

Gene

b)

Phenotype

c)

Punnett Square

63.

How many alleles (versions of a gene) do we get from each parent?

a)

1

b)

2

c)

3

d)

4

64.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
65.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
66.
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? 
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
67.
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 
68.
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 
69.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
70.

What belongs in Box 2?

a)

y

b)

Y

c)

YY

d)

yy

71.

What belongs in Box 4?

a)

Y

b)

YY

c)

Yy

d)

yy

72.

What belongs in Box 8?

a)

Y

b)

YY

c)

Yy

d)

yy

73.

What belongs in box 1?

a)

F

b)

f

c)

FF

d)

Ff

74.

What belongs in box 4?

a)

F

b)

FF

c)

Ff

d)

ff

75.

What belongs in box 5?

a)

F

b)

FF

c)

Ff

d)

ff

76.

What belongs in box 8?

a)

F

b)

FF

c)

Ff

d)

ff

77.

The letters that make-up the genetic code for a trait

a)

genotype

b)

heterozygous

c)

phenotype

d)

trait

78.
What chance does the offspring have of showing a dominant trait?
a)
100%
b)
75%
c)
50%
d)
0%
79.
What is the allele combination for square 1?
a)
Dd
b)
DD
c)
dd
d)
D
80.
What is the chance of this offspring having a recessive trait?
a)
25%
b)
100%
c)
50%
d)
0%
81.
What is the missing allele?
a)
a
b)
A
c)
AA
d)
aa
82.
What is the genotype for the black chickens?
a)
BB
b)
Bb
c)
bB
d)
bb
83.
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%

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