For a gene with complete dominance, the recessive allele has no effect on the phenotype of a heterozygote

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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Target cells for steroid hormones and thyroid hormones do not have membrane receptors for these hormones because

they ____.

a. stimulate the cell by changes in electrical activity b. are hydrophobic c. enter the cell by ion channels d. are small enough to diffuse directly into the cell e. dissolve readily in the extracellular fluid (ECF)

Biology & Microbiology

In tissue capillaries, __________ combines with water to form carbonic acid, which after being transported to the lungs, dissociates back to its constituents.  

A.  CO2 B.  O2 C.  H2CO3 D.  hemoglobin E.  HCO3-

Biology & Microbiology

Slash-and-burn agriculture:a

is practiced by international corporations. b. is practiced by large scale cattle ranchers. c. includes fuel wood consumption. d. is practiced by many people in highly developed countries. e. is practiced by subsistence farmers.

Biology & Microbiology

Endotoxins differ from exotoxins in that only endotoxins:

A. Are found only in Gram-negative bacteria B. Have aspecific site of action on animal cells C. Are proteins D. Are secreted during the log phase E. Are usually sensitive to heat

Biology & Microbiology