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Genetics review Sheet
1. Look at questions page 349 – 352 and 367 – 369 these will be on
test
2.
Look at the karyotype, what pair of chromosomes is abnormal?
1. On pair 21 or 47, XX, +21 is what the disorder?
Is this a male or female?
4.
If a white dog is crossed with a white dog and a poke a dotted dog is formed is this
codominance, polygenic inheritance, or incomplete dominant?
5.
If a white flower and a red flower are crossed and all pink flowers are formed is this
codominance, polygenic inheritance, or incomplete dominant?
6.
What are the four types of blood types?
7.
Show a cross between a homozygous A blood with heterozygous B blood.
Which one is codominant?
8.
Based on Mendels Law of Independent assortment list the possible allele
combinations?
A a
B
b
9.
What is polygenic traits? Pg 355 Give examples of some
10.
Who is Gregor Mendol? What did he study?
11.
Explain Mendol’s Law of segregation pg 342 and Mendel’s Law of Independent
assortment? Pg 346
12.
What is…..
a. Heterozygous
b. Homozygous
c. Genotype
d. Phenotype
13.
In guinea pigs, rough hair is dominant to smooth hair. What percentage of
smooth hair offspring will most likely result from a cross between a
heterozygous rough – coated male and a smooth coated female?
14.
Red horse is dominant over White horse. Tall horses are dominant over short
horses. A heterozygous red and homozygous Tall horse is crossed with a
white, short horse. What is the probability that the offspring with result in
Tall, red horses?
In a pedigree, a square represents a male. If it is darkened he has hemophilia; if clear, he
had normal blood clotting.
a. How many males are there? __________________
b. How many males have hemophilia? ____________
2. A circle represents a female. If it is darkened, she has hemophilia; if open she is normal.
a. How many female are there? _________________
b. How many females have hemophilia? __________
3. A marriage is indicated by a horizontal line connecting a circle to a square.
a. How many marriages are there? _______________
4. A line perpendicular to a marriage line indicates the offspring. If the line ends with
either a circle or a square, the couple had only one child. However, if the line is
connected to another horizontal line, then several children were produced, each
indicated by a short vertical line connected to the horizontal line. The first child born
appears to the left and the last born to the right.
a. How many children did the first couple (couple in row I) have? ______________
b. How many children did the third couple (couple in row III) have? _____________
5. Level I represent the first generation, level II represents the second generation.
a. How many generations are there? _______________
b. How many members are there in the fourth generation? _____________
6. Is this pedigree autosomal or sex –linked?_______________________
7.Is this pedigree dominant or recessive?____________________
BIOTECHNOLOGY pages 370 – 382
Explain how recombinant DNA is made using restriction enzymes?
What happens during Gel Electrophoresis?
Explain DNA fingerprinting and PCR pg 377 – 378