SCIENCE 9 REPRODUCTION UNIT
It is expected that students will:
1. Explain the process of cell division
2. Relate the processes of cell division and emerging reproductive
technologies to embryonic development
3. Compare sexual and asexual reproduction in terms of advantages
and disadvantages
Learning Intentions:
Chapter 2
a) identify the contents of the nucleus – chromosomes, DNA, genes, nucleolus
b) explain the reasons for cell division
c) describe the basic structure of DNA (nucleotides, base pairs, double helix)
d) explain the relationship between DNA, genes, and protein
e) describe how DNA, RNA and ribosomes work together to make protein
f)
list functions of proteins in the body, including enzymes
g) describe the stages of the cell cycle including interphase, mitosis and cytokinesis
h) list factors that could lead to mutations in DNA
i)
describe effects of changes in DNA (ex. cancer)
j)
compare sexual and asexual reproduction in terms of parents and offspring
k) describe examples of asexual reproduction (binary fission, budding,
fragmentation, vegetative reproduction)
Chapter 3
a) state advantages of sexual and asexual reproduction to organisms
b) explain the purpose of meiosis in sexual reproduction
c) compare mitosis and meiosis in terms of number and type of daughter cells and
chromosome number
d) describe the role of male and female gametes in sexual reproduction
e) describe the process of zygote formation (fertilization) and development
Chapter 4
a) explain the role of stem cells in embryonic development
b) discuss and assess the impact of reproductive technologies (ex. cloning, stem
cell research, in vitro fertilization)
Chapter 2 Vocabulary
nucleus
vegetative reproduction
fragmentation
nucleolus
DNA
Chromosome
RNA
nucleotide
nitrogenous bases
amino acid
gene
genome
chromatid
centrioles
Chapter 3 Vocabulary
gamete
meiosis
sperm
egg
haploid
diploid
fertilization
zygote
embryo
cell cycle
interphase
mitosis
spindle
prophase
metaphase
anaphase
telophase
cytokinesis
mutation
cancer
carcinogen
sexual reproduction
zygote
asexual reproduction
clone
binary fission
budding
Chapter 4 Vocabulary
stem cell
differentiation