Which touch receptors of the skin are sensitive to deep pressure?

a. Pacinian corpuscles
b. Meissner corpuscles
c. Merkel disks
d. free nerve endings
e. Ruffini corpuscles


a

Biology & Microbiology

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By using mice, researchers found a correlation between mutations in the gene APOA5 and ____

a. high triglycerides in blood b. breast cancer c. receptors of the immune system d. sickle-cell anemia e. Alzheimer’s disease

Biology & Microbiology

The hormone that stimulates the development of the follicles in the ovaries of females is the ________

Fill in the blank(s) with correct word

Biology & Microbiology

Which solutes move into plant root cells is determined by ________

a. active transport b. passive transport c. diffusion of the solutes in the same proportion as they are present in the soil d. chance

Biology & Microbiology

Plasmids are used as vectors in plant and bacterial genetic engineering. However, there is a major difference in the fate of genes introduced into bacteria on most bacterial plasmids and into plants on tumor-inducing (Ti) plasmids

What is this difference? A) In bacteria, genes are stably expressed; in plants, gene expression is always lost quickly. B) Gene expression tends to decrease rapidly and unpredictably in bacteria; gene expression is much more stable in plants. C) Bacterial plasmids are circular DNAs; Ti plasmid DNA is linear. D) Bacterial plasmids and the genes they carry usually are not integrated into the chromosome; Ti plasmids and the genes they carry are integrated into the chromosome.

Biology & Microbiology