Download Name Quiz 13

Final Exam Review B 2010-2011
Names_____________miranda______________________________
Chapter(s) Key Concepts 6. p 142
7. p 166
8. p 192
9. p 212
10. p 236
1. Question: What is heredity? What is the study of heredity known as?
Answer:
a. Heredity is the set of characteristics it receives from parents
b. The study of heredity is knows as genetics today.
2. Question: How do organisms inherit traits?
Answer: they inherit traits from there parents genes.
3. Contrast or differentiate: Describe phenotype and genotype.
Answer:
a. phenotype is the from traits
b. as genotype is its genetic composition
4. Describe: Segregation in sex cells.
Answer: Segregation in sex cells is when the separate from each this ussaully happens when sex
cells are formed.
5. Explain: Independent assortment in genes.
Answer: Independent assortment genes do not influence each others inheritance.
6. Question: Where are genes located?
Answer: Genes are located on chromosomes.
7. Differentiate: Describe haploid and diploid cells
Answer: haploid cells contain single set of chromosomes and diploid cells contain double set of
chromosomes.
8. Question: What happens to diploid cells during meiosis?
Answer: In meiosis the number of chromosomes on a diploid cells are reduced to half.
9. Question: Why does probability apply to genetics?
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Answer probability applies to genetics because the formation of gametes depends on random events.
10. Question: Why does diversity exist in phenotypes?
Answer: diversity exist in phenotypes because many genes have more then one allele or have alleles
that are neither dominate or recessive.
11. Question: How is the sex of an individual determined?
Answer: By the sex chromosomes that the individual inherits.
12. Differentiate: Male versus female chromosomes.
Answer: Females have turn off x chromosomes and male has x chromosomes.
13. Give examples: of disorders carried on sex chromosomes.
Answer:
a. Turner syndrome
b. down syndrome
c. klinefelter syndrome
14. Question: What are autosomes?
Answer: Autosomes are what genetic disorders are carried on.
15. List: Autosomal genetic disorders
Answer: a. Albinism b. Cystic fibrosis c. Tay-Sachs disease.
d. sickle cell anemia e. pku f. and Huntington disease
16. Question: What is nondisjunction?
Answer: nondisjunction is when a chromosome pair fails to separate during meiosis.
17. Question: How are genetic disorders detected before birth?
Answer: a. amniocentesis
b. chorionic villus sampling.
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