Life Science Chapter 6 Mendelian Genetics

The observable traits of an organism are known as its

• allele
• dominance
• phenotype
• genotype

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The study of heredity

• Genetics

• Genome

• Allele

• Punnett Square

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The Italian monk/scientist who first showed

the principles of genetics

• Watson and Crick

• Linnaeus

• Darwin

• Mendel

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What is the percentage of homozygous recessive offspring?

• 0%
• 25%
• 50%
• 75%

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What percentage of the offspring will be purebred dominant?

• 0%
• 25%
• 50%
• 75%

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Dominant alleles are represented by a(n)

• phenotype
• lower case letter
• upper case letter
• punnett square 

What type of traits "show up" in a population more often?

• dominant
• recessive
• punnett squares
• alleles

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True or False:
A heterozygous dominant trait can be written as BB.

• True
• False

If two purebred species (BB) are crossed, what percentage of their offspring would be BB?

• 25%
• 50%
• 75%
• 100%

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What is the percentage of a homozyogus dominant offspring?

• 75%
• 50%
• 25%
• 0%

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