What is the final outcome of meiosis?
A. Four genetically identical cells
B. Four genetically non-identical cells
C. Two genetically identical cells
D. Two genetically non-identical cells
Answer: B. Four genetically non-identical cells
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After making careful observations, scientist construct a(n)
A. scientific method B. hypothesis C. cohort D. research question
Which soil region extends to the underlying bedrock, and consists of mineral particles and rock fragments but generally no organic material?
a. A horizon b. B horizon c. C horizon d. D horizon e. O horizon
Which have a collagen cuticle, a pseudocoelom, a tubular digestive system and no respiratory or circulatory organs?
a. roundworms b. cnidarians c. flatworms d. annelids e. porifera
On human chromosome 11 there is a gene called DRD4. This gene carries the instructions for building a protein that is receptor for the brain chemical dopamine. There are two different alleles, C and T. Subjects in a study (with known DRD4 genotypes) responded to a questionnaire on temperament and character. Based on the graph shown above, what conclusion might you draw about an individual with two C alleles?
What will be an ideal response?