The dominance of what species in upper intertidal zones is an indication of heavy wave action?

a. Barnacles
b. Periwinkles
c. Mussels
d. Limpets


a

Biology & Microbiology

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Type 1 fucosidosis is a rare human disease. Patients cannot hydrolyze the disaccharide fucose, and as a result have severe neurological decline and die by age 6. The disease is due to a defect in the gene that encodes the lysosomal enzyme that breaks down fucose (?-1-fucosidase), and is inherited in an autosomal recessive manner. Jane and John have a child who has Type 1 fucosidosis. What is the probability that their next two children will NOT have the disease?

A. None (all of their children will have the disease) B. 1/2 C. 3/4 D. 1/8 E. 9/16

Biology & Microbiology

The chief function of root hairs is to

A) decrease the anchoring power of roots. B) increase the surface area for efficient absorption of water and minerals. C) provide a direct passageway from the soil to the vascular cylinder.

Biology & Microbiology

In which type of cell would you likely find polysomes?

a. endocrine cells b. oocytes c. sperm d. inactive skin cell e. red blood cells

Biology & Microbiology

Which of following is an example of a continuous variable?

A. Weight B. Restaurant rating C. Gender

Biology & Microbiology