The introduction of "healthy" genes into cells that lack them is called ________.
What will be an ideal response?
gene transfer therapy
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In a homozygous genotype:
A. both alleles for a given trait are the same. B. the two alleles for a given trait are different. C. the individual will be phenotypically dominant. D. the individual will be phenotypically recessive. E. both alleles for a given trait are the same and the individual will be phenotypically dominant.
If thyroid hormone levels are very high in the blood, what hormone level would be low in the blood?
a. parathyroid hormone (PTH) b. calcitonin c. thyroid-stimulating hormone (TSH) d. inhibin e. cortisol
Characteristics of headwaters include:a
fast flow, high oxygen, and free-floating vegetation. b. fast flow, low oxygen, and free-floating vegetation. c. fast flow, high oxygen, and streamlined animal bodies. d. fast flow, high oxygen, and free-floating vegetation. e. slow flow, high oxygen, and free-floating vegetation
In order for translation to occur:
a. the DNA must produce large numbers of free amino acids. b. replication must be occurring simultaneously. c. transcription must be occurring simultaneously. d. there must be large numbers of free amino acids present in the cytoplasm. e. the nuclear membrane must first dissolve.