Sexual Reproduction and Genetic Variation

What is genetic variation?

• the similarities between organisms in their DNA

• the difference in organisms because of their unique DNA

• the variation of giraffes

• the way we are born

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You get exactly ________ of your genetic material from each parent?

• 25%

• 50%

• 75%

• 100%

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The alleles Bb are

• Homozygous (dominant)

• Homozygous (recessive)

• Heterozygous

A gene is

• A segment of DNA on a chromosome that controls a specific trait

• The actual allele combination from each parent

• The physical expression of a trait

• Something used to predict the possible genotype and phenotype of the offspring

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Each trait is controlled by two ______. You get one from each parent.

• Chromosomes

• Traits

• Genes

• Alleles

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Which of the following allele combinations are homozygous (dominant).

• Mn

• gg

• Hh

• TT

Gg is an example of a(n)

• Allele

• Phenotype

• Genotype

• Chromosome

This picture shows examples of

• Alleles

• Phenotype

• Genotype

• Chromosomes

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Sexual reproduction involves

• one parent

• making cookies

• two parents

• making more cookies

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Why do some children look more like one biological parent than the other?

• The child got more of their DNA

• The child got more alleles from one parent

• The child got more recessive alleles of one parent

• The child got more dominant alleles of one parent

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