The different forms of a gene-for example, those responsible for eye color-are called
A) sister chromatids.
B) receptors.
C) alleles.
D) cyclins.
E) telomeres.
C
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During meiosis II,
a. cytokinesis results in the formation of a total of two cells. b. sister chromatids of each chromosome are separated from each other. c. homologous chromosomes pair. d. homologous chromosomes separate. e. sister chromatids exchange parts.
Which one of the following taxa (subgroups used in classification) applies to humans?
A) Mammals B) Protista C) Invertebrates D) Prokarya E) Bacteria
Scientists hypothesize that disrupting our ________ communities may increase our susceptibility to infectious diseases, predispose us to certain cancers, and contribute to conditions such as asthma and other allergies, irritable bowel syndrome,
Crohn's disease, and autism. A) microbial B) exotoxin C) protist D) pathogen
Which of the following is an animal virus?
A. tobacco mosaic virus B. T4 virus C. chicken pox virus D. lambda virus