Heredity and Variation SOL Review. Which of these is NOT the result of genetic mutations? 12345 A. Downs syndrome B. sickle - cell anemia C. green eyes.

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Presentation transcript:

Heredity and Variation SOL Review

Which of these is NOT the result of genetic mutations? A. Downs syndrome B. sickle - cell anemia C. green eyes D. cystic fibrosis

The passing of traits from one generation to another is called: A. pedigree B. heredity C. genetics D. sex - linked gene

Variations are important in populations because they can lead to: A. better environments B. less evolution C. more fossils D. new species

The units of heredity are the: A. genes B. cells C. chromosomes D. traits

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

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

A trait that is hidden is called a: A. recessive trait B. genetic trait C. dominant trait D. genotype trait

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

Punnett squares are used to ____________ the outcome of crosses of traits A. dominate B. predict C. assure D. number

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

"The Father of Genetics" is: A. Reginald C. Punnett B. Thomas Hunt Morgan C. Gregor Mendel D. James Watson

Genetic disorders in humans such as sickle-cell anemia result from: A. illness B. genetic engineering C. mutation D. carbohydrates

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

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

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