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Unit Three Review

Total questions: 37

Worksheet time: 32mins

Name
Class
Date
1.
If two organisms reproduce sexually, then their offspring will exhibit a genetic makeup that is -
a)
identical to only one parent
b)
identical to all of its siblings
c)
a unique combination of traits
d)
the recessive traits of each parent
2.

The joining of male and female sex cells

a)

asexual reproduction

b)

photosynthesis

c)

pollination

d)

fertilization

3.

If a hydra has 32 chromosomes in each regular body cell, how many chromosomes will the offspring have in their body cells?

a)

32

b)

54

c)

17

d)

10

4.

Human body cells have 46 chromosomes. How many chromosomes are in a gamete (sex cells like sperm and eggs)?

a)

23

b)

25

c)

46

d)

52

5.

Offspring means ___________________.

a)

babies or young

b)

parents

c)

grandparents

d)

cousins

6.

Offspring are genetically identical to the parent

a)

Asexual reproduction

b)

Sexual reproduction

7.

Offspring have a combination of DNA from both parents

a)

Asexual reproduction

b)

Sexual reproduction

8.

California blackworms, also known as mudworms, are able to break apart. Each body section that broke apart is able to become an identical new worm. What type of reproduction does this example represent?

a)

Sexual reproduction

b)

Asexual reproduction

9.
 A general name for a sex cell (egg or sperm) is a: 
a)
zygote
b)
gene
c)
offspring
d)
gamete
10.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
11.
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%
12.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
13.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
14.
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
15.
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%
16.
In the Punnett square shown, what must the genotype of the missing parent be?
a)
BB
b)
Bb
c)
bb
d)
Tt
17.
A heterozygous yellow pea plant's genotype would be:
a)
YY
b)
yy
c)
Yy
d)
Yg
18.
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being white?
a)
25%
b)
0%
c)
100%
d)
50%
19.
Purple (P) is dominant to the white (p).
According to the Punnett Square, what is the probability of an offspring being purple?
a)
25%
b)
0%
c)
100%
d)
50%
20.
What is the yellow seed genotype?
a)
aa
b)
Aa
c)
AA
d)
AA or Aa
21.
What genotype would go in box 2?
a)
BB
b)
Bb
c)
bb
22.
What does a Punnett Square do?
a)
tell you exactly what your offspring will look like
b)
increase the chance you pass on recessive traits
c)
predict genotypes and phenotypes in offspring
d)
have no purpose but for Taylor to give us extra assignments
23.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
24.
What are small stretches of DNA that code for traits
a)
Nucleus
b)
Chromosomes
c)
Gene
d)
Centromeres
25.

The _______________ produces pollen grains.

a)

ovary

b)

anther

c)

stigma

26.

After fertilization, each _______forms a seed, while each _________forms a fruit.

a)

ovary ... ovule

b)

ovule ... ovary

c)

egg ... ovary

d)

pollen ... ovary

e)

ovary ... pollen

27.

Fruit X is small and bright-red. The likely dispersal method for its seeds is by ____________.

a)

animal

b)

wind

c)

water

d)

splitting

28.

What is the male reproductive organ of a flower?

a)

pistil

b)

stamen

c)

angiosperm

d)

fruit

29.

What develops from the ovary?

a)

seeds

b)

pollen

c)

fruit

d)

leaves

30.

What is pollination?

a)

The process of pollen moving from the filament to the style

b)

The process of pollen moving from the style to the filament

c)

The process of pollen moving from the stigma to the anther

d)

The process of pollen moving from the anther to the stigma

31.

Which is true about animal pollinated plants?

a)

The color, shape, and smell of the flower doesn’t matter

b)

The color, shape, and smell of the flower is attractive to a specific pollinator

32.
I have long and feathery stigma that sticks out of the flower. How am I likely to be pollinated by?
a)
By wind 
b)
By insects 
c)
By water 
d)
By explosive action
33.

It is the spreading of seeds to other places.

a)

germination

b)

habitat

c)

seed dispersal

34.

What does it mean for an animal to adapt?

a)

when an organism changes to suit its environment

b)

when an organism dies due to a change in its habitat

c)

when an organism has a disease and dies

35.

Why is reproduction essential to life? Choose two.

a)

So a species will not go extinct

b)

So species will go extinct

c)

for an organism to maintain a balance in population size

d)

So we can eliminate certain species

36.

Which parenting behavior does NOT increase the probability that offspring will survive?

a)

producing milk to feed offspring

b)

protecting the offspring from predators

c)

keeping the offspring warm in cold environments

d)

abandoning young before the eggs are hatched

37.

Female mud snails are born with genetically identical embryos inside of them. They can also mate with a male to produce young snails from fertilized eggs. Is this an example of:

a)

asexual reproduction

b)

sexual reproduction

c)

both asexual and sexual reproduction

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