AP Biology: Unit 5 Review (CED)

Meiosis results in _____________ because there is/are _______________.

• 2 identical haploid cells, 1 round of division

• 4 identical diploid cells, 2 rounds of division

• 4 unique haploid cells, 2 rounds of division

• 2 unique diploid cells, 1 round of division

Which of the following does NOT increase variation in gamete formation?

• crossing over

• fertilization of gametes

• random assortment of chromosomes

• condensation of chromatin

This process involves homologous chromatids exchanging genetic material to increase genetic diversity.

• crossing over

• random fertilization

• independent assortment

• gene flow

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Which of the following does NOT support the concept of common ancestry for all organisms?

• DNA/RNA (genetic code) are shared by all living systems

• Ribosomes are found in all forms of life

• Glycolysis takes place in all organisms

• All organisms undergo sexual reproduction

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Which of the following best describes the inheritance pattern of the shown pedigree?

• Autosomal Dominant

• Sex-Linked Dominant

• Autosomal Recessive

• Sex-Linked Recessive

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Which of the following best describes the phenotypic ratio of 6:3:3:2:1:1?

• Incomplete dominance & complete dominance on dihybrid cross

• Incomplete dominance on dihybrid cross

• Complete dominance on dihybrid cross

• Epistasis on dihybrid cross

Describe the cause of a cross resulting in greater than 50% parental phenotypes and less then 50% recombinant phenotypes

• Genes are linked on the same chromosome

• Genes are located on different arms of the same chromosome

• Gene are on different chromosomes

• Gene are found in different gametes

In animals, traits determine by the mitochondrial DNA are inherited from the _______________.

• mother

• brother

• father

• sister

Identify the type of inheritance of the pedigree.

• Sex-Linked

• Mitochondrial

• Autosomal

• Random

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Snowshoe hares are brown in summer and white in winter, describe this event.

• Hares undergo phenotypic plasticity & environment influences gene express

• Hares are white in winter due to the snow binding to hair follicles

• Hares are brown from exposed dirt in summer

• Hares remain hidden in the winter months inhibiting fur darken from sun

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