Mendel and Monohybrid Crosses

The physical expression of a genetic trait is called a

• mutation

• genotype

• crossing over

• phenotype

Having two of the same alleles for a trait (sometimes called purebred).

• homozygous

• hetrozygous

• protein

• chromosome

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Having two different alleles for a trait (sometimes called hybrid).

• protein

• homozygous

• heterozygous

• genotype

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An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

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Which of the following genotypes is homozygous recessive?

• Tt

• tt

• TT

• T

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Who is the father of genetics? 

• Charles Darwin 
• Gregor Mendel
• Dimitri Mendeleev 
• Hans Krebs 

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An organism's genetic makeup

• phenotype

• genotype

• heterzygous

• allele

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A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?

• 25%
• 50%
• 75%
• 100%

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What predicts genetic outcomes?

• genetic engineering

• Punnett square

• probability

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