IB 102 Lecture Outline
Flowering Plant
Reproduction
Lecture Objectives
By the end of the lecture, you should be
able to:
- explain the advantages and
disadvantages of
asexual reproduction.
- list some examples of asexual
reproduction through root, stem and leaf modifications.
- explain how vegetative propagation is
used in a commercial setting.
- explain the advantages and
disadvantages of sexual reproduction to a plant population.
- indicate the sequence of events of the
general sexual life cycle.
- identify the location of meiotic
divisions in your body and the body of a flowering plant.
- summarize the changes in chromosome
(genetic) number and genetic recombinations that occur during meiosis
and fertilization in a flowering plant.
- draw a diagram of a simple flower.
Label each of the flower parts listed below and describe its function.
- explain the role of chromosomes as
genetic material.
-
diagram, name and
explain the sequence of the phases of meiosis.
-
describe the
development of male and female gametophytes.
Reading: Leventin, Ch. 5.
TERMS
- nucleus
- chromatids
- spindle fibers
- haploid
- diploid
|
- petals
- sepals
- receptacle
- stamens
|
- anther
- filament
- carpel(s)
(pistils)
- stigma
|
- style
- ovary
- ovules
- peduncle
|
Sites
Meiosis
Try
a tutorial on meiosis
Movies
Bamboo
rhizome growth
1.The general reproductive cycle in flowering plants
2. Asexual reproduction (vegetative
propagation, cloning)
- Advantages
- Types
- Commercial Use
3. The general reproductive cycle in
flowering plants
- Advantages and disadvantages of
sexual reproduction
4. Sexual life cycle
- The importance of meiosis in the
sexual life cycle
5. Flowers, the site of meiosis
- Flower structure–general arrangement
of floral organs (See Fig. 5.1)
6.
Meiosis
- Where it occurs in the plant body
- Crossing
over
- Independent
assortment
- The end product
7. Flowering plant sexual life cycle,
Fig. 5.8
For the next lecture on Pollination and Bee Colony Collapse,
read Ch.5 in Leventin and HoneyBeeQuiet.com.
Be able to
answer the following question:
- What kind of flowers would you plant
to attract bees to your yard?
- How would the world food supply suffer
if honeybees disappeared?
