EOC Review

What will most likely be the result if all of the mitochondria are removed from a plant cell? 

• It will be unable to carry out respiration. 
• It will lose water through osmosis.  
• It will break down ribosomes in the cell
• It will be unable to photosynthesize.

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What process best explains how a nerve cell and a muscle cell can both develop from the same fertilized egg?

• differentiation
• natural selection
• selective breeding
• genetic engineering

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During strenuous exercise, body temperature increases. The body responds to the increase in temperature by sweating, which helps to reduce the body temperature. Which is demonstrated in this situation?

• excretion
• metabolism
• homeostasis 
• synthesis

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Before mitosis begins, which happens before the nucleus starts dividing?

• The cytoplasm separates.
• The DNA replicates. 
• The sister chromatids separate. 
• The homologous chromosomes cross over. 

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What is the function of autotrophs in the carbon cycle?

• to use oxygen to produce glucose 
• to take in excess water
• to use carbon dioxide to produce glucose
• to feed on herbivores 

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A strand of DNA has these bases:
 AGC CAT GTA TAC What is the complementary DNA strand?

• ACG GAT CTA TAG
• TCG GTA CAT ATG
• TGC CTA GAT ATC
• UCG CUA CAU AUG

Which statement best describes the relationship that exists among proteins, DNA, and cells?

• Proteins combine to produce cells, which produce DNA
• Proteins are made up of DNA, which determines the cells that are produced. 
• DNA is made up of proteins, which tell a cell how to function. 
• Cells contain DNA, which controls the production of proteins.

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Why is meiosis important for sexual reproduction?

• It allows the zygote formed from fertilization to have triple the chromosome number of the organism. 
• It allows gametes to have twice the original number of chromosomes of the organism.
• It allows gametes to have half the original number of chromosomes of the organism. 
• It allows the zygote formed from fertilization to have half the original number of chromosomes of the organism. 

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Which process produces the most variation within a species? 

• Asexual reproduction
• Sexual reproduction
• mitosis
• cloning

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Which technique would most likely be used by forensic scientists?

• gene cloning
• gene therapy
• DNA fingerprinting
• karyotyping