Both prokaryotic and eukaryotic cells possess
A) mitochondria. B) ribosomes. C) a nucleus. D) chloroplasts.
B
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Triglycerides are stored primarily in ____ tissue.
A. nervous B. epithelial C. muscular D. adipose E. cardiac
Individuals heterozygous for the RB+ and RB? alleles can develop tumors as a result of (Select all that apply.)
A) a mitotic crossover that leads to homozygosity for RB+ in some cells and RB? in other cells. B) a somatic mutation in the RB+ allele that leads to homozygosity for RB?. C) a somatic mutation in the RB? allele that leads to homozygosity for RB+. D) the fact that RB? is dominant to RB+.
According to the endosymbiont theory, host archaea engulfed ___, which then allowed both populations to survive together.
A. photosynthetic archaea B. photosynthetic bacteria C. anaerobic bacteria D. aerobic bacteria E. aerobic archaea
In a person with cystic fibrosis, the CFTR mutation causes the protein to be ____
a. embedded in the plasma membrane b. destroyed in the endoplasmic reticulum c. shuttled to the nuclear membrane instead of the plasma membrane d. shuttled to the plasma membrane instead of the nuclear membrane e. expelled from the cell by exocytosis before it can do its job