Name ____________________________________________
Genetics Exam Review
Date ____________
WORD BANK (Words MAY be used MORE THAN ONCE!!!)
GENES
HYBRIDIZATION
DOMINANT
HOMOZYGOUS
TWO
Bb
BB
BACTERIA
GENETIC ENGINEERING
INSULIN
GREGOR MENDEL
SELECTIVE BREEDING
CLONING
INBREEDING
DNA
RECOMBINANT
HETEROZYGOUS
bb
GROWTH
RECESSIVE
PUNNETT
PEA PLANTS
1. _____________________________ is the father of genetics. He carried out mathematical analysis of the offspring of
______________________________ to observe the inheritance of traits.
2. Chromosomes consist of many ____________________________. Genes are made up of ________________________.
3. __________ genes, or alleles, determine a trait.
4. A _______________________________________ pair of alleles contains two of the SAME genes.
5. A _______________________________________ pair of alleles contains two DIFFERENT genes.
6. ___________ represents a HOMOZYGOUS RECESSIVE pair of alleles. ___________ represents a HOMOZYGOUS DOMINANT pair of
alleles.
7. A HETEROZYGOUS pair of alleles can be represented as __________.
8. ____________________________ genes are represented by a CAPITAL letters. ___________________________ genes are represented
by LOWER CASE letters.
9. A _______________________ square shows the probability of a trait being inherited by offspring.
10. The DELIBERATE change of the DNA of an organism is called _________________________________________________________.
11. The COMBINATION of DNA from TWO DIFFERENT organisms is called ____________________________________ DNA.
12. Recombinant DNA can be inserted into _________________________ to produce substances such as _________________________
and ________________________ hormone.
13. The process of _______________________ results in producing GENETICALLY IDENTICAL OFFSPRING.
14. The process in which we select the organisms that will produce offspring is called ________________________________.
15. Crossing two organisms with DIFFERENT traits in the hopes of producing offspring with the best traits is called ____________________.
16. ______________________ involves crossing two organisms with VERY SIMILAR traits.
Use the diagram below to answer questions 17 – 21.
Word Bank:
BACTERIAL DNA
HUMAN DNA
RECOMBINANT DNA
BACTERIUM
17. Label structures A - D in the diagram.
A
18. Identify the technique taking place in the diagram.
C
D
__________________________________________________
19. Identify the structure that represents recombinant DNA.
Support your answer.
____________________________________________________
____________________________________________________
B
20. Identify two substances that can be produced with this
technique.
___________________________________________________
21. Identify the process used by the bacterium to reproduce.
____________________________________________________
Use the pedigree chart which shows the inheritance of a recessive traits through four generations
to answer questions 22 – 29.
22. How many generations are represented in the pedigree? _____
23. In generation 1, identify the CARRIER. _________
24. In generation 2, identify the individual who marries someone without the
trait. ____________
25. Identify the generation in which the first case of sickle cell anemia
appears. _____________
26. Identify the generation that contains the most male carriers. ___________
27. Can 2 carriers produce a child with sickle cell anemia? ____________
28. Can a normal person produce offspring with sickle cell anemia? _______
29. Which parents produce 2 children with sickle cell anemia? ___________
30. A man with blue eyes marries a woman who is heterozygous for brown eyes. If brown eyes are dominant,
what are the chances of having a blue eyed child? Write the cross, draw a punnett square, and circle the answer.
31. In tomatoes, red fruit color is dominant to yellow fruit color. What is the chance of having yellow fruit when
crossing a homozygous dominant parent with a homozygous recessive parent? Write the cross, draw a punnett
square, and circle your answer.
32. In humans, freckles is dominant to no freckles. What is the chance of having offspring with freckles when
the father is heterozygous for freckles the mom does not have freckles. Write the cross, draw a punnett square,
and circle your answer.