AP Biology Exam Review Put Your Knowledge to the Test Enter the GameHow to play

How This Works Read the Question Click on the button of the right answer If you are wrong you go back to the start, if you answer correctly, you move on. **Click on the buttons only, not the page*** Enter the Game

Genetics

Genetics Continued

1. What are Mendel’s Laws? A Law of Segregation B C Law of Independent assortment Both Law of Segregation and Law of Independent Assortment

BACK TO QUESTION

Right!!!!!!!! Both the Law of Segregation and the Law of Independent Assortment are included in Mendel’s Law The Law of Segregation states that each allele segregates separately. One of each homologous chromosomes goes to each new cell. The Law of Independent Assortment states that in a dihybrid cross, each trait is independent of the other. BACK TO GENETICS PAGE

2. What is a Locus? A B C The copied strand of the chromosome. Exact location on a chromosome where a gene is located. The offspring generation

BACK TO QUESTION

Right!!!!!!!! A locus is the exact location on a chromosome where a gene is located BACK TO GENETICS PAGE

3. What is progeny? A B C The offspring generation The parent generation A sex influenced trait

BACK TO QUESTION

RIGHT! Progeny is the offspring generation of a test cross BACK TO GENETICS PAGE

4. What is a homologous pair? A C B Every cell contains two copies of each chromosome The chromosome and its copy The original pair of chromosomes

BACK TO QUESTION

***RIGHT*** In a homologous pair, every cell contains two copies of each chromosome BACK TO GENETICS PAGE

5. Define an x-inactivation B A C One of the x chromosomes does not uncoil into chromatin, it becomes a barr body instead. A genetic defect on the x chromosome The x chromosome replicates uncontrollable

BACK TO QUESTION

CORRECT X-inactivation is when one of the x chromosomes does not uncoil into chromatin and becomes a barr body instead BACK TO GENETICS PAGE

6. What is a test cross? A C B A cross between any two pair of alleles to find the progeny When you are trying to figure out what the make up of the allele is, A_ (either A or a), and you cross it with a pure recessive allele A test between progeny to find the parent generation

BACK TO QUESTION

Yeah!!  A test cross is when you are trying to figure out what the make up of the allele is, A_ (either A or a), and you cross it with a pure recessive allele BACK TO GENETICS PAGE

7. In the genus Homo sapien, who is the heterogametic sex? A B C Male Female Either sex could be the heterogametic sex

BACK TO QUESTION

~RIGHT~ In the genus Homo sapien, the male is the heterogametic sex BACK TO GENETICS PAGE

8. In the genus Homo sapien, who is the homogametic sex? A B C Female Male Either sex could be the homogametic sex

NOPE, TRY AGAIN! BACK TO QUESTION

ALRIGHT! In the genus Homo sapien, the female is the homogametic sex BACK TO GENETICS PAGE

9. What is the genotype of the blood type A? A B C AA and AO AB and AO AA and AB

Sorry, wrong answer BACK TO QUESTION

RIGHT!! The genotype of blood type A is AA or AO BACK TO GENETICS PAGE

10. What is the genotype of the blood type B? A B C BB and BO BB and AB AB and BO

WRONG BACK TO QUESTION

YEP! The genotype for blood type B is BO or BB BACK TO GENETICS PAGE

11. What is the genotype of the blood type AB? A B C AB AB and AO AA and AB

~TRY AGAIN~ BACK TO QUESTION

***RIGHT*** The genotype for blood type AB is AB BACK TO GENETICS PAGE

12. What is the genotype of the blood type O? A B C OO OO and BO AO and OO

Try Again! BACK TO QUESTION

CORRECT!!!! The Genotype for blood type O is OO BACK TO GENETICS PAGE

13. What is pleiotrophy? A B C An inactive gene A single gene which has multiple effects A recessive gene that shows in the phenotype

BACK TO QUESTION

RIGHT Pleiotrophy is a single gene which has multiple effects An example would be Siamese cats BACK TO GENETICS PAGE

14. What is epistasis? A B C Two recessive genes which cause dominance not to show A gene that expressed in the genotype but not shown in the phenotype A gene which effects multiple characteristics

Go Back and Try Again! BACK TO QUESTION

You’re Right!!! An epistasis is two recessive genes that cause dominance not to show An example would be snapdragons BACK TO GENETICS PAGE

15. What is polygenic inheritance? A B C A single gene which has multiple effects A gene which shows no characteristics A dominant trait that is not expressed

Nope, try again BACK TO QUESTION

RIGHT!!! Polygenic Inheritance is a single gene which has multiple effects An example would be in skin color and height BACK TO GENETICS PAGE

16. An environmentally produced phenotype that stimulates the effects of a particular gene is called: A B C A Phenocopy Industrial Melanism Genetic Drift

SORRY, GO BACK !!! BACK TO QUESTION

Correct!!!! An environmentally produced phenotype that stimulates the effects of a particular gene is called a phenotype Examples are tranquilizer BACK TO GENETICS PAGE

17. Which genetic defect is the inability to break down phenylalanine? B A C Phenylketonuria Tay-Sach’s Syndrome Huntington Disease

WRONG BACK TO QUESTION

RIGHT The genetic disease that effects the inability to break down phenylalanine is phenylketonuria. BACK TO GENETICS PAGE

18. Which genetic defect is characterized by lipids causing nervous system disorder? A B C Tay-Sachs Syndrome Phenylketonuria Huntington Disease

Go Back and Try Again! BACK TO QUESTION

***RIGHT*** Tay-Sachs syndrome is characterized by lipids causing a nervous system disorder. BACK TO GENETICS PAGE

19. Which genetic disease starts at middle age with mild mental illness? A B C Huntington disease Tay-Sach’s Syndrome Cystic Fibrosis

Nope, try again BACK TO QUESTION

~RIGHT~ Huntington disease is a genetic disease which starts at middle age with mild mental illness. BACK TO GENETICS PAGE

20. Which genetic defect has sickle shaped cells and abnormal hemoglobin? A B C Sickle cell anemia Down Syndrome Cystic Fibrosis

Sorry, wrong answer BACK TO QUESTION

Correct!!!! Sickle cell anemia is characterized by sickle shaped cells and abnormal hemoglobin. BACK TO GENETICS PAGE

21. Which genetic disease causes problems with blood clotting? A B C Hemophilia Sickle Cell Anemia Cystic Fibrosis

NO WAY!! BACK TO QUESTION

RIGHT Hemophilia is a genetic disease which causes problems with blood clotting. BACK TO GENETICS PAGE

22. What is the inability to distinguish red from green? A B C Red-green colorblindness Sickle Cell Anemia Hemophilia

SORRY, TRY AGAIN BACK TO QUESTION

CORRECT Red-green colorblindness is a genetic disorder which is characterized by the inability to distinguish red from green. BACK TO GENETICS PAGE

23. What genetic disease is known as trisomy21? A B C Down’s Syndrome Tay-Sach’s Syndrome Red-Green Colorblindness

**TRY AGAIN** BACK TO QUESTION

GOOD JOB The genetic disease also know as trisomy 21 is Down’s Syndrome. BACK TO GENETICS PAGE

24. Which genetic disease causes the deteriorating of muscles? A B C Duchene’s Muscular Dystrophy Cystic Fibrosis Down’s Syndrome

NOPE BACK TO QUESTION

RIGHT!!! Duchene’s Muscular Dystrophy is a genetic disease which causes the deteriorating of muscles. BACK TO GENETICS PAGE

25. Which genetic disease is caused by an X, X, and Y chromosome? A B C Klinefelton syndrome Down’s Syndrome Criduchat

WRONG ANSWER BACK TO QUESTION

CORRECT The genetic disease caused by an XXY chromosome is Klinefelton syndrome BACK TO GENETICS PAGE

26. Which genetic disease is characterized by a cat-like cry? A B C Criduchat Down’s Syndrome Hemophilia

**TRY AGAIN** BACK TO QUESTION

ALRIGHT! The genetic disease characterized by a cat-like cry is Criduchat. BACK TO GENETICS PAGE

27. What is deletion? A B C Sections of the chromosome are deleted Sections of the chromosome are inverted Sections of the chromosome are duplicated

Try again BACK TO QUESTION

RIGHT!!!! Deletion happens when sections of the chromosomes are deleted. BACK TO GENETICS PAGE

28. What is inversion? A B C Sections of the chromosome are switched Sections of the chromosome are duplicated Sections of the chromosome are deleted

Sorry, Wrong Answer BACK TO QUESTION

Yep! Inversion is when sections of the chromosome are switched. BACK TO GENETICS PAGE

29. What is translocation? A B C A section of one chromosome switches with a section of another chromosome Sections of the chromosome are switched A section of the chromosome is deleted

Try again BACK TO QUESTION

Good answer Translocation is when a section of one chromosome switches with another chromosome. BACK TO GENETICS PAGE

30. What is duplication? A B C Sections of a chromosome replicate more than once Sections of the chromosome are deleted Sections of the chromosome are switched

Wrong Answer BACK TO QUESTION

Alright! Duplication is when sections of a chromosome are duplicated more than once. BACK TO GENETICS PAGE

31. What is nondisjunction? A B C The homologous chromosomes do not separate at interphase There is a duplication of the chromosome One X chromosome is duplicated in chromosome 23

SORRY, TRY AGAIN BACK TO QUESTION

GOOD JOB Nondisjunction is when the homologous chromosomes do not separate at interphase. BACK TO GENETICS PAGE

32. What is expressivity? A B C The degree to which a particular gene is expressed There is a duplication of chromosome 21 Recessive genes are expressed instead of dominant genes

Go back and try again BACK TO QUESTION

RIGHT!!! Expressivity is the degree to which a particular gene is expressed. An example would be sickle cells BACK TO GENETICS PAGE

33. What is polyploidy? A B C There are more than two complete sets of chromosomes Chromosome 21 duplicates more than once The X chromosome is expressed twice along with a Y chromosome

NOPE, GO BACK BACK TO QUESTION

RIGHT!!! Polyploidy is when there are more than two complete sets of chromosomes. BACK TO GENETICS PAGE