Download Genetics EOC Review

Genetics EOC Review
Important terms and people.
1. Gregor Mendel2. Trait3. _______________ - the pair of genes that make up a trait. (____________ from
mom, and _____________ from dad)
4. ________________ - what the trait looks like
5. Independent assortment means that the genes separate into the sex cells
________________. Several different types of sex cells can be formed because
of different gene combinations. This allows for
______________________________.
6. ____________________________________ are used to predict genotypes and
phenotypes of parent crosses.
7. ______________________________________ are used to determine unknown if
a parent is ____________ or ________________. A homozygous recessive
individual is always used.
Types of Dominance
1. ____________________________ is when one allele (form of a gene) covers up
the expression of the other allele.
Only two phenotypes are possible.
RR = red
Rr = red
Rr = white
2. ___________________________ is when neither allele is dominant and there is a
blending to produce a third phenotype.
RR = red
R’R = pink
R’R’ = white
3. ________________________________ is when both alleles are dominant and are
both expressed producing a third phenotype.
RR = red
WW = white
RW = red and white
Multiple Alleles vs. Polygenic Inheritance
Multiple alleles is when you have more than two forms (alleles) of a
________________ controlling a trait. Example = __________________.
Polygenic inheritance is when you have two or more __________________
controlling a single trait. Example = _______________________.
Sex Linked Traits
Sex linked genes are found on the ______________________________.
Examples of sex linked diseases are _____________________________.
Normal Female =
Female carrier =
Diseased female=
Normal Male =
There is not a male carrier.
The male can not be heterozygous.
Diseased Male =
Pedigrees
_____________________show the inheritance of traits through families
Karyotypes
Karyotypes show the complete set of _____________________ that a human has. It can
be used to determine chromosomal disorders and sex.
DNA Gel Electrophoresis
 Gel electrophoresis
 Used in DNA fingerprinting to match DNA at a crime scene with a
suspect.
 Used in DNA fingerprinting to match DNA in parent custody
 Used in DNA fingerprinting to show evolutionary relationships