BSCS Biology: A Molecular Approach

Chapter 12: Reproduction

Sexual Reproduction

1.
Sperm in most complex plants is carried inside particles called ____ grains.
A)anther
B)pollen
C)carpel
D)ovule
2.
Cross-pollination involves the exchange of genetic information between ____.
A)the anther and carpel of the same plant
B)two different plants of the same species
C)two different plant species
D)a plant species and an animal species
3.
Another term for spawning, or the releasing of gametes into water by aquatic animals, is ____.
A)external fertilization
B)internal fertilization
C)ovulation
D)aquatic fertilization
4.
What is the term for the exchange of DNA through the temporary tubes shown here between the two strands of Spirogyra elegans?
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A)conjugation
B)alternation
C)pollination
D)fertilization
5.
What is unusual about the reproductive process of the duckbilled platypus?
A)It is the only mammal that spawns.
B)It is a marsupial, an animal with a pouch on the outside of the mother's body.
C)It has an unusually high rate of reproductive success.
D)It is one of only two mammal species that lays shelled eggs.
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