2. The genetic method is used in long
time investigations to discover and
study the origin, trend, rate, direction,
and pattern of development in the
phenomena studied. It is often thought
of as pertaining primarily to physical
and anatomical growth but actually it is
being used increasingly for the study of
mental, social, and personality
characteristics as well

3.  It is the pictorial
representation of
the members of
the family.
 it is a diagram of
family relationships
that uses symbols
to represent
people and lines to
represent genetic
relationships.

4.  Is used to detect the number of
chromosomes and the different
chromosomal abnormality.
 It make use of the karyotype or
karyogram which is the pictorial
representation of chromosomes.

5. Humans have 23 pairs of the same
chromosomes, each pair with the genes for
the same characteristics (alleles) lined up in
the same order. These two corresponding
chromosomes stick to one another when in
meiosis (pairing).
2 kinds of chromosomes:
 Autosomes or Somatic Chromosomes- has 22
pairs or 44 autosomes. Autosomes are made
upof 2 sets of chromosomes- one from the
father, and one from the mother.

6.  SexChromosomes –there are two
kinds of sex chromosomes: an X and a
Y chromosome, which determine the
sex of the organism. Normally, males
have an X and Y pair and females a
pair of X chromosomes.
Note: in humans, there is a total number
of chromosomes of 46.

7.  Chromosomes are numbered from 1 to
22, and the biggest pair number of
chromosomes is #1.

8.  A method of genetic process that make
use of plant experiment and analysis in
order to pass through generation to
generation.

9.  A method that studies the concordance
and the disconcordance of the twins.
2 kinds of Twins:
a.) Fraternal Twins - it is also known as
Dizygotic twins (coming from 2 zygotes)
- they are not really
resembling to one another.

10. b.) Identical Twins – also known as
Monozygotic twin (coming from one
zygote).
Concordance twin – having the same trait
or both doesn’t have the trait.
Disconcordance – having the different trait
(the other person have one trait while
the other does not).

11.  It makes use of statistical treatment when
data are many.
 It is mostly used in population analysis.

12.  Null Hypothesis  Alternative
The null hypothesis
hypothesis is a The alternative
hypothesis which the hypothesis is what
researcher tries to the researcher really
disprove, reject or thinks is the cause of
nullify. Stated in a a phenomenon.
negative form. Stated in a positive
form.