Proteins called ________ surround/associate with DNA to help organize it. These proteins can be modified to alter gene expression

Fill in the blank(s) with correct word


histones

Biology & Microbiology

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A wolf eats a rabbit that eats grass. The grass is a ________.

A. producer B. consumer C. heterotroph D. detritivore

Biology & Microbiology

Transmission and scanning electron microscopy differ because

A. transmission electron microscopy has high resolution, but scanning electron microscopy does not. B. transmission electron microscopy shows contrast, but scanning electron microscopy does not. C. transmission electron microscopy has much higher magnification than scanning electron microscopy. D. transmission electron microscopy shows two-dimensional ultrastructure, while the scanning electron microscopy shows three-dimensional structure. E. transmission electron microscopy uses light as an illumination source, while scanning electron microscopy uses electron beams as an illumination source.

Biology & Microbiology

Which mode of inheritance results in the phenotype of a heterozygote being indistinguishable from that of an organism homozygous for the dominant allele?

A) complete dominance B) incomplete dominance C) codominance D) epistasis E) incomplete penetrance

Biology & Microbiology

A primary function of the nucleus in eukaryotic cells:

A) to transport proteins outside of the cell B) to synthesize proteins from mRNA C) to produce ATP that powers the cell D) to contain the cells hereditary material E) none of these

Biology & Microbiology