Binding of _____ to _____ in DNA can increase the rate of transcription of specific genes

a. activators; promoters
b. activators; enhancers
c. repressors; operators
d. both activators; promoters and activators; enhancers


B

Biology & Microbiology

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If a hormone caused an increase in protein kinase activity, predict the type of hormone responsible and the

intracellular signaling mechanism of its action.

What will be an ideal response?

Biology & Microbiology

Why might traits such as skin color be fairly consistent within a racial group, but alleles for skin color aren't consistent?

A) There's no relationship between alleles and skin color. B) Skin color is influenced by many genes, so several different gene pools can produce the same skin color. C) Only one gene is important in skin color, and when analysis is limited to that gene, there's clear evidence of a long separation of groups. D) Few allele variations between groups are just what you would expect if races were genealogical species.

Biology & Microbiology

Fill in the blanks to complete the following statements. ? A surgical instrument contaminated with? norovirus is used on another patient and as a result transmits the illness. The instrument can be referred to as a __________

Fill in the blank(s) with correct word

Biology & Microbiology

From what is a karyotype made?

a. a Punnett square b. a series of X-ray diffraction images c. a preparation of gametes on a microscope slide d. a photograph of cells in mitosis

Biology & Microbiology