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REPRODUCTION, GENETICS, HEREDITY 2

Total questions: 55

Worksheet time: 45mins

Name
Class
Date
1.
A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?
a)
100% BB
b)
75% BB and 25%Bb
c)
50 % BB and 50% Bb
d)
50% Bb and 50% bb
2.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
3.
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
4.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
5.

Squidward has light blue skin, and his genotype for this trait is Bb. Which of the following would describe Squidward?

a)

Purebred

b)

Hybrid

c)

Homozygous

d)

Sex-linked

6.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
7.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
8.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
9.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
10.
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%
11.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
12.
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
13.
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
14.
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
a)
25%
b)
1%
c)
10%
d)
0%
15.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
16.
AA and Aa always show up as
a)
dominant
b)
recessive
17.
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
18.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
19.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
20.
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
21.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
22.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
23.
Which choice best represents the genotype of this cross?
a)
1 Yy: 2 yy: 0 YY
b)
2 Yy: 2 yy: 0 YY
c)
3 Yy: 1 yy: 0 YY
d)
1 Yy: 3 yy: 0 YY
24.
Which choice best represents the genotype of this cross?
a)
1 Yy: 2 yy: 0 YY
b)
2 Yy: 2 yy: 0 YY
c)
3 Yy: 1 yy: 0 YY
d)
1 Yy: 3 yy: 0 YY
25.
aa always shows up as
a)
dominant
b)
recessive
26.
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 
27.
A green pea plant (GG) is being crossed with a green pea plant (Gg). What is the phenotype?
a)
100 % rainbow 
b)
50% yellow and 50% green 
c)
100% green
d)
100% yellow 
28.

The _________ allele is the one that "wins"

a)

awesome

b)

recessive

c)

dominant

d)

DNA

29.

A gene is a . . .

a)

section of DNA that codes for a specific trait

b)

section of the cell that codes for a specific trait

c)

different forms of the same trait

d)

a trait

30.

Eye color, hair color, hair texture, height, skin color, and face shape are all examples of . . .

a)

genes

b)

alleles

c)

traits

31.
When a starfish grows a new body off a broken arm, what kind of reproduction is this?
a)
Sexual
b)
Differentiation
c)
Asexual 
d)
Specialization
32.
Where does an off spring get its traits in asexual reproduction?
a)
From both parents
b)
From only one parent
c)
From neither parent
d)
There are no traits handed down
33.
What percentage of chromosomes are handed down by a sperm cell?
a)
75%
b)
25%
c)
50%
d)
100%
34.
Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents
a)
1,1
b)
2,2
c)
2,1
d)
1,2 
35.
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
36.
What is one disadvantage of sexual reproduction?
a)
Only one parent needed
b)
Off spring are exact copies of parents
c)
Happens very quickly
d)
Needs two parents
37.

All of the offspring of an organism have the same genetic material, which is identical to the parent organism. From this, we can conclude that this organism -

a)

makes its own food

b)

is unicellular

c)

live in a marine habitat

d)

reproduces asexually

38.

An animal’s female reproductive cell

a)

Egg

b)

Amoeba

c)

Gamete

d)

Offspring

39.

Reproductive cells: Egg is female. Sperm is male.

a)

Gametes

b)

Offspring

c)

Prokaryotic

d)

Embryo

40.

Which best describes one disadvantage of asexual reproduction?

a)

It increases biodiversity

b)

It decreases biodiversity

c)

It decreases population size

d)

It increases combination of traits

e)

It produces diverse offspring

41.

Budding is a process in which a new individual is formed that is a clone of the parent. This type of reproduction is _____.

a)

Sexual

b)

Sporulation

c)

Asexual

d)

Binary Fission

e)

Fragmentation

42.

Sexual Reproduction _____

a)

results in genetic variation in the offspring

b)

produces offspring that are identical to the parent

c)

decreases the chances of survival of the species

d)

results in genetic material being donated to offspring by only one parent

e)

produces uniform offspring

43.

In sexual reproduction how many genes does an offspring receive for each trait?

a)

1

b)

2

c)

3

d)

4

e)

5

44.

Which is an example of sexual reproduction?

a)

An egg cell joining a sperm cell in fertilization.

b)

A hydra formed by budding

c)

An amoeba formed by binary fission

d)

A starfish formed by fragmentation

e)

A mushroom formed from a spore

45.

A plant produces a new plant using a runner. What type of reproduction is shown?

a)

Asexual

b)

Regeneration

c)

Sexual

d)

Sporulation

e)

Fragmentation

46.

What advantage would a plant have when it reproduces using vegetative propagation?

a)

The plant can adapt easily to environmental changes.

b)

The plant will produce plants with genetic variability

c)

The plant will produce plants well adapted to its environment

d)

The plant will develop genetic diversity due to its parents DNA.

e)

The plant will be able to reproduce quickly.

47.

What is an advantage of offspring produced from sexual reproduction?

a)

Offspring may be unfit for the environment in which they are formed.

b)

Traits are consistently conserved from generation to generation.

c)

Offspring are able to have more advantageous traits than their parents.

d)

Offspring are smaller and more active than their parents.

48.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
49.
Emily has brown hair. Which is most likely a true statement about Emily?
a)
Emily’s favorite color is brown.
b)
Emily has a parent with brown hair.
c)
Emily’s older brother has brown hair. 
50.
Which of these is an inherited trait?
a)
dimples
b)
long hair
c)
favorite color
d)
driving ability
51.
Which feature of a bird is controlled only by inherited genes?
a)
diet
b)
habitat
c)
life span
d)
beak shape
52.

If you wanted to determine the possibility of traits an offspring might inherit from their parents, you would use a -

a)

periodic table

b)

pedigree chart

c)

alleles

d)

punnett square

53.

What are the genotypes of them mother and father in this scenario?

a)

TT and tt

b)

Tt and Tt

c)

tt and tt

d)

TT and Tt

54.

The order in which cells are composed are -

a)

cell, gene, nucleus, chromosome, DNA

b)

gene, cell, nucleus, chomosome, DNA

c)

gene, nucleus, DNA, chromosome, cell

d)

gene, DNA, chromosome, nucleus, cell

55.

occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.

a)

carrier

b)

genotype

c)

karotype

d)

mutation

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