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What to Study
Unit 2
Cell containing
only one
chromosome
from each
homologous
pair.
Haploid
A cell containing a
complete set of
homologous
chromosomes
pairs.
Diploid
A type of
reproduction
that combines
genetic
material from
two different
cells to produce
offspring.
Sexual
reproduction
 Put these in order
of what happens
first.




Sex cells
Meiosis
Fertilization
Zygotes




Meiosis
Sex cells
Fertlization
Zygotes
A process of cell
division that
produces egg &
sperm cells (sex
cells).
meiosis
 Non-living things
Abiotic
Diploid cell
formed by the
fusion of one
egg and one
sperm cell;
develops into a
new organism.
zygote
 A organism with a
nucleus.
 Can be single
celled or multicelled.
Eukaryote
Why is Meiosis Important?
 It is important because it produces
egg & sperm cells (sex cells) which
are haploids.
 Since it makes haploid cells each new
generation starts off with the same
number of chromosomes as the
parent.
A type of
reproduction
that ONLY
requires one
parent.
Asexual
reproduction
1
2
What is what?
1
Anther
2
Ovary
1
1
2
Where is the pollen made?
Anther
Each form of a  alleles
gene with
different
information
(the “choices”)
 DNA
What is the
genetic
material for all
living things?
Where is pollen
produced.
anther
What comes first
the fruit or the
flower.
flower
 A living thing
without a nucleus
 Also called
bacteria
Prokaryote
 Asexual
reproduction in
bacteria
Fission
In plants, what
turns into the
fruit?
ovary
Genetic
variation is an
advantage for
which type of
reproduction?
Sexual
 dominant
A genetic
factor that
blocks another
genetic factor.
Alleles that are  homozygous
the same. For
example: AA
or aa
The observable  phenotype
trait, your
appearance.
For example:
blue or brown
eyes.
A genetic
factor that is
hidden and
blocked by
another factor.
 recessive
Alleles that are  heterozygous
different. For
example: Aa
Not needing
 asexual
waste time and
energy to find
a mate is an
advantage
which type of
reproduction
The passing of
traits from
parent to
offspring
 heredity
The
combination of
specific alleles
that make up
an organism is
that
organism’s
 genotype
 What determines
gender in humans
 Male
 Female
 Male XY
 Female XX
Note:
 There will be
Punnett square
questions on the
test.