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Heredity and Variation

Heredity and Variation. SOL Review. Which of these is NOT the result of genetic mutations?. Downs syndrome sickle - cell anemia green eyes cystic fibrosis. The passing of traits from one generation to another is called:. pedigree heredity genetics sex - linked gene.

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Heredity and Variation

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  1. Heredity and Variation SOL Review

  2. Which of these is NOT the result of genetic mutations? • Downs syndrome • sickle - cell anemia • green eyes • cystic fibrosis

  3. The passing of traits from one generation to another is called: • pedigree • heredity • genetics • sex - linked gene

  4. Variations are important in populations because they can lead to: • better environments • less evolution • more fossils • new species

  5. The units of heredity are the: • genes • cells • chromosomes • traits

  6. An inherited disease that causes blood to clot slowly or not at all is: • downs syndrome • hemophilia • color blindness • sickle-cell anemia

  7. Why do scientists want to locate all of the genes on the human chromosome? • to identify genes responsible for specific traits • to save lives of people at risk • to begin treatment of disorders while children are young • all of the above

  8. A trait that is hidden is called a: • recessive trait • genetic trait • dominant trait • genotype trait

  9. The substance that contains all the information needed to make and control every cell in an organism is: • DNA • protein • glucose • RNA

  10. Punnett squares are used to ____________ the outcome of crosses of traits. • dominate • predict • assure • number

  11. A change in genes or chromosomes that causes a new trait to be inherited is called a: • mutation • sex - linked trait • hybrid • multiple allele

  12. "The Father of Genetics" is: • Reginald C. Punnett • Thomas Hunt Morgan • Gregor Mendel • James Watson

  13. Genetic disorders in humans such as sickle-cell anemia result from: • illness • genetic engineering • mutation • carbohydrates

  14. On farms, hybridization is used to produce plants that: • take in oxygen • resist common pests • can live without water • yield no food

  15. What percentage of the offspring are green? • 25% • 50% • 75% • 100% The square below represents crossing a yellow (Yy) pea and a green pea (yy).  Four offspring are produced in this cross.

  16. Which color is dominant? • green • yellow • neither • both The square below represents crossing a yellow (Yy) pea and a green pea (yy).  Four offspring are produced in this cross.

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