Sexual reproduction and meiosis generate genetic variety by
A. random fertilization.
B. All answers are correct.
C. independent assortment.
D. crossing over.
B. All answers are correct.
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Which of the following INCORRECTLY states a principle of the chromosome theory of inheritance?
A. Genes are transmitted from parent to offspring via chromosomes. B. Gametes contain either a maternal or paternal set of chromosomes. C. Somatic cells contain a maternal and paternal set of chromosomes. D. The paternal and maternal chromosomes assort randomly during meiosis. E. Gametes are haploid and somatic cells are diploid.
Which of the following characteristics do all animals share?
A. They are multicellular prokaryotes. B. They are single-celled eukaryotes. C. They are multicellular eukaryotes. D. They are single-celled prokaryotes.
What practice helps scientists avoid bias in their findings?
a. designing experiments that other researchers will find difficult to replicate b. performing experiments testing all circumstances c. reaching conclusions based on personal conviction d. avoiding questions that may be at odds with society’s moral standards e. publicly publishing their results
Which genetic disorder is associated with DNA repair issues?
a. sickle-cell anemia b. Alzheimer’s disease c. Werner’s syndrome d. Will’s disease e. cystic fibrosis