Asexual and Sexual Reproduction (Science 9, Alberta - G9 U1 T3)

Imagine for a moment that humans reproduced asexually. If this were true, you would have ​ (a)   parent(s), ​ (b)   grandparent(s), and ​ (c)   great-grandparent(s).

• one
• two
• three
• four
• six
• eight

When comparing asexual reproduction to sexual reproduction, some of the advantages and disadvantages of aswexual reproduction include:

Groups:

(a) Asexual advantage

,

(b) Asexual disadvantage

• 
• 
• 
• 

This diagram illustrates binary fission. What is the proper term for the two cells on the right end?

• The offspring cells

• The daughter cells

• The child cells

• The junior cells

Many forms of fungi (eg. mushrooms) reproduce asexually through reproductive cells called:

• eggs
• seeds
• spores
• pollen

While sitting in your desk, just as you begin to yawn (as clearly you aren't in science) a person seated next to you sneezes. This causes one Streptococcus bacterium to land in the back of your throat at 10:00 AM. Assuming your body kills none of these foreign cells, and the bacteria double in number through binary fission every 15 minutes, how many Strep throat bacteria will you have at:

• 4 Streptococcus cells

• 12:00

• 256 Streptococcus cells

• 11:00

• 64 Streptococcus cells

• 10:30

• 128 Streptococcus cells

• 11:30

• 16 Streptococcus cells

• 11:45

Tips of roots and stems in plants often contain an areas rich in rapidly reproducing cells called meristematic cells. If you cut off a stem or root and then replant it, the identical plant that then grows is called a:

• clone
• drone

• hybrid
• mutant

Place each of the following examples in the categories that best suit their means of asexual reproduction.

Groups:

(a) Binary fission

,

(b) Spores

,

(c) Clones

,

(d) Budding

• 
• 
• 
• 
• 

Match each of the following components of a plant to their location on the diagram:

c

d

e

f

b

a

style

petal

filament

anther

stigma

ovary

Classify each of the words below as being associated with the male or female components of a sexually reproducing plant:

Groups:

(a) Male components

,

(b) Female components

• Style

• Pistil

• Stamen

• Stigma

• Filament

• Anther

• Ovary

Label three key stages to sexual reproduction in mammals in this diagram.

e

f

g

c

b

Embryo

Fertilization

Zygote

Uterus

Fetus

Oogenesis

Neonatal

Spermatogenesis